Upload
others
View
13
Download
0
Embed Size (px)
Citation preview
Thin-Film CompoundSemiconductor Photovoltaics
www.cambridge.org© in this web service Cambridge University Press
Cambridge University Press978-1-107-40896-8 - Materials Research Society Symposium Proceedings: Volume 865:Thin-Film Compound Semiconductor PhotovoltaicsEditors: William Shafarman, Timothy Gessert, Shigeru Niki and Susanne SiebentrittFrontmatterMore information
www.cambridge.org© in this web service Cambridge University Press
Cambridge University Press978-1-107-40896-8 - Materials Research Society Symposium Proceedings: Volume 865:Thin-Film Compound Semiconductor PhotovoltaicsEditors: William Shafarman, Timothy Gessert, Shigeru Niki and Susanne SiebentrittFrontmatterMore information
MATERIALS RESEARCH SOCIETYSYMPOSIUM PROCEEDINGS VOLUME 865
Thin-Film CompoundSemiconductor Photovoltaics
Symposium held March 29-April 1, 2005, San Francisco, California, U.S.A.
EDITORS:
William ShafarmanUniversity of Delaware
Newark, Delaware, U.S.A.
Timothy GessertNational Renewable Energy Laboratory
Golden Colorado, U.S.A.
Shigeru NikiNational Institute of Advanced Industrial Science
and TechnologyTsukuba, Ibaraki, Japan
Susanne SiebentrittHahn-Meitner-Institut
Berlin, Germany
IMIR1S1Materials Research Society
Warrendale, Pennsylvania
www.cambridge.org© in this web service Cambridge University Press
Cambridge University Press978-1-107-40896-8 - Materials Research Society Symposium Proceedings: Volume 865:Thin-Film Compound Semiconductor PhotovoltaicsEditors: William Shafarman, Timothy Gessert, Shigeru Niki and Susanne SiebentrittFrontmatterMore information
Single article reprints from this publication are available throughUniversity Microfilms Inc., 300 North Zeeb Road, Ann Arbor, Michigan 48106
CODEN: MRSPDH
Copyright 2005 by Materials Research Society.All rights reserved.
This book has been registered with Copyright Clearance Center, Inc. For further information, pleasecontact the Copyright Clearance Center, Salem, Massachusetts.
Published by:
Materials Research Society506 Keystone DriveWarrendale, PA 15086Telephone (724) 779-3003Fax (724) 779-8313Web site: http://www.mrs.org/
Manufactured in the United States of America
www.cambridge.org© in this web service Cambridge University Press
Cambridge University Press978-1-107-40896-8 - Materials Research Society Symposium Proceedings: Volume 865:Thin-Film Compound Semiconductor PhotovoltaicsEditors: William Shafarman, Timothy Gessert, Shigeru Niki and Susanne SiebentrittFrontmatterMore information
CONTENTS
Preface xv
Materials Research Society Symposium Proceedings xvi
OPTICAL CHARACTERIZATION
Multichannel Mueller Matrix Analysis of the Evolution ofSurface Roughness on Different In-Plane Scales DuringPolycrystalline Film Processing 3
Chi Chen, Christoph Ross, C.R. Wronski, and R.W. Collins
Real Time Analysis of Magnetron-Sputtered Thin-FilmCdTe by Multichannel Spectroscopic EUipsometry 9
Jian Li, Jie Chen, J.A. Zapien, N.J. Podraza, Chi Chen,J. Drayton, A. Vasko, A. Gupta, S.L. Wang, R.W. Collins,and A.D. Compaan
Effect of Cu Deficiency on CuIn!.xGaxSe2 and High-Efficiency Photovoltaic Solar Cells 15
Sung-Ho Han, Falah S. Hasoon, Joel W. Pankow,Allen M. Hermann, and Dean H. Levi
Analysis of Cu(InGa)Se2 Alloy Film Optical Properties andthe Effect of Cu Off-Stoichiometry 21
P.D. Paulson, S.H. Stephens, and W.N. Shafarman
Sub-Micron Optoelectronic Properties of PolycrystallineSolar Cell Materials 27
S. Smith, R. Dhere, T. Gessert, P. Stradins, T. Wang,K. Ramanathan, R. Noufi, and A. Mascarenhas
Electron Radiation Damage in Cu(In,Ga)Se2 AnalyzedIn Situ by Cathodoluminescence in a TransmissionElectron Microscope 33
Hanne Scheel, Gerhard Frank, Niels Ott, Wolfram Witte,and Horst P. Strunk
www.cambridge.org© in this web service Cambridge University Press
Cambridge University Press978-1-107-40896-8 - Materials Research Society Symposium Proceedings: Volume 865:Thin-Film Compound Semiconductor PhotovoltaicsEditors: William Shafarman, Timothy Gessert, Shigeru Niki and Susanne SiebentrittFrontmatterMore information
ELECTRONIC STRUCTURE
* Synchrotron-Based Spectroscopy for the Characterizationof Surfaces and Interfaces in Chalcopyrite Solar Cells 41
Iver Lauermann, Paul Pistor, Immo Kotschau, andMarcus Bar
* Band Structure Investigation of ChalcopyriteCuInSe2(001) by Angle-Resolved PhotoelectronSpectroscopy 53
Ralf Hunger and Christian Pettenkofer
DEFECTS AND IMPURITIES
A Comparison of In Situ As Doping With Ex Situ CdCl2
Ttreatment of CdTe Solar Cells 67Vincent Barrioz, Rachael L. Rowlands, Eurig W. Jones,Stuart J.C. Irvine, Guillaume Zoppi, and Ken Durose
STRUCTURAL CHARACTERIZATION
* Glancing Incidence X-ray Diffraction of PolycrystallineThin Films 75
Brian E. McCandless
Cu K-Edge EXAFS Studies of CdCl2 Effects on CdTeSolar Cells 87
Xiangxin Liu, Alvin D. Compaan, and Jeff Terry
* Application of Advanced Microstructural and MicrochemicalMicroscopy Techniques to Chalcopyrite Solar Cells 93
Changhui Lei, Chun-Ming Li, Angus Rockett, I.M. Robertson,and W. Shafarman
The Structure and Passivation Effects of Double-PositioningTwin Boundaries in CdTe 105
Yanfa Yan, M.M. Al-Jassim, and K.M. Jones
* Invited Paper
VI
www.cambridge.org© in this web service Cambridge University Press
Cambridge University Press978-1-107-40896-8 - Materials Research Society Symposium Proceedings: Volume 865:Thin-Film Compound Semiconductor PhotovoltaicsEditors: William Shafarman, Timothy Gessert, Shigeru Niki and Susanne SiebentrittFrontmatterMore information
POSTER SESSION I
Photovoltaic Effect in the Anisotype GaSe-InSe HeterojunctionsUnderPressure 113
S.I. Drapak, M.O. Vorobets, and Z.D. Kovalyuk
Physical Vapor Deposition Synthesis of Cu3BiS3 for Applicationin Thin Film Photovoltaics 119
Nathan J. Gerein and Joel A. Haber
Highly Mismatched Alloys for Intermediate Band Solar Cells 125W. Walukiewicz, K.M. Yu, J. Wu, J.W. Ager III, W. Shan,M.A. Scrapulla, O.D. Dubon, and P. Becla
TEM Studies of High-Efficiency CdTe Solar Cells onCommercial Sn02/Soda-Lime Glass 131
Yanfa Yan, X. Wu, J. Zhou, and M.M. Al-Jassim
Defects and Interfaces in Cu(In,Ga)Se2-Based Thin-FilmSolar Cells With and Without Na Diffusion Barrier 137
Helge Heinrich, Sephalika Senapati, Shripad R. Kulkarni,Ankush R. Halbe, Dominik Rudmann, andAyodhya N. Tiwari
Structural Properties of Ag-Based Chalcopyrite CompoundThin Films for Solar Cells 143
Hiroki Ishizaki, Keiichiro Yamada, Ryouta Arai,Yasuyuki Kuromiya, Yukari Masatsugu,Naoomi Yamada, and Tokio Nakada
Photostimulated Changes of Electrical Characteristics ofAg/CdTe Thin Film Structures 149
T.D. Dzhafarov and M. Caliskan
Band Alignment at CdS/Wide-Band-Gap Cu(In,Ga)Se2
Hetero-Junction by Using PES/IPES 155S.H. Kong, H. Kashiwabara, K. Ohki, K. Itoh,T. Okuda, S. Niki, K. Sakurai, A. Yamada,S. Ishizuka, and N. Terada
Analysis of Proton Induced Defects in Cu(In,Ga)Se2
Thin-Film Solar Cells 161Shirou Kawakita, Mitsuru Imaizumi, Koichi Kibe,Shinichi Yoda, Takeshi Ohshima, Hisayoshi Itoh,and Masafumi Yamaguchi
VII
www.cambridge.org© in this web service Cambridge University Press
Cambridge University Press978-1-107-40896-8 - Materials Research Society Symposium Proceedings: Volume 865:Thin-Film Compound Semiconductor PhotovoltaicsEditors: William Shafarman, Timothy Gessert, Shigeru Niki and Susanne SiebentrittFrontmatterMore information
Built-in Potential and Open Circuit Voltage of HeterojunctionCuIni_xGaxSe2 Solar Cells 167
Akimasa Yamada, Koji Matsubara, Keiichiro Sakurai,Shogo Ishizuka, Hitoshi Tampo, Hajime Shibata,Tomoyuki Baba, Yasuyuki Kimura, Satoshi Nakamura,Hisayuki Nakanishi, and Shigeru Niki
Thin CuInS2 Films Prepared by MOMBE: Interface andSurface Properties 173
C. Pettenkofer, C. Lehmann, and W. Calvet
Band Offsets at the ZnSe/CuInS2 Interface 177O. Papathanasiou, S. Siebentritt, I. Lauermann, T. Hahn,H. Metzner, and M.Ch. Lux-Steiner
The Optical Properties of the Interface Layer in CdS-CdTeHeteroj unctions 183
Sergiu A. Vatavu
Nonequilibrium Charge Carrier Generation—RecombinationMechanisms in CdMnTe Thin Films 191
Iuliana M. Caraman, Sergiu A. Vatavu, Valentina Z. Nicorici,and Petru A. Gasin
Photoluminescence Studies on Cu and O Defects in Crystallineand Thin-Film CdTe 197
Caroline R. Corwine, Timothy A. Gessert, James R. Sites,Wyatt K. Metzger, Pat Dippo, Jingbo Li, Anna Duda, andGlenn Teeter
Photoluminescence From Ion Implanted CdTe Crystals 203Xiangxin Liu and A.D. Compaan
Effects of Ge-Implantation on the Photoluminescence ofCuGaSe2 Thin Films 209
Serge Doka, Marin Rusu, Alex Meeder, Ernest Arushanov,Norbert Fabre, Sebastian Fiechter, Thomas Schedel-Niedrig,and Martha Ch. Lux-Steiner
CELLO Measurements of CIGS and jicSi Solar Cells 215Stefan Mathijssen, Jiirgen Carstensen, Helmut Foil,Georg Voorwinden, and Helmut Stiebig
Conduction-Band-Offset Rule Governing J-V Distortion inCdS/CI(G)S Solar Cells 221
A. Kanevce, M. Gloeckler, A.O. Pudov, and J.R. Sites
vni
www.cambridge.org© in this web service Cambridge University Press
Cambridge University Press978-1-107-40896-8 - Materials Research Society Symposium Proceedings: Volume 865:Thin-Film Compound Semiconductor PhotovoltaicsEditors: William Shafarman, Timothy Gessert, Shigeru Niki and Susanne SiebentrittFrontmatterMore information
Open-Circuit Voltage Decay in CdTe/CdS Solar Cells 227Kent Price, Kevin Cooper, and Chris Lacy
Complex Defect Behavior in Cu(In,Ga)Se2 Solar CellsWith Different Gallium Content 231
Verena Mertens, Jtirgen Parisi, Robert Kniese,Marc Kontges, and Rolf Reineke-Koch
Investigating Minority-Carrier Traps in p-Type Cu(InGa)Se2
Using Deep Level Transient Spectroscopy 237Steven W. Johnston, Jehad A.M. AbuShama, andRommel Noufi
An Electron Paramagnetic Resonance and PhotoelectronSpectroscopy Study on the Native Oxidation of CuGaSe2 243
R. Wiirz, A. Meeder, D. Fuertes-Marron,Th. Schedel-Niedrig, and K. Lips
INTERFACES
* Interfaces in CdTe Solar Cells: From Idealized Conceptsto Technology 251
Wolfram Jaegermann, Andreas Klein, Jochen Fritsche,Daniel Kraft, and Bettina Spath
A Study of the Diffusion and pn-Junction Formation inCIGS Solar Cells Using EBIC and EDX Measurements 265
Shogo Ishizuka, Keiichiro Sakurai, Koji Matsubara,Akimasa Yamada, Minoru Yonemura, Shimpei Kuwamori,Satoshi Nakamura, Yasuyuki Kimura, Hisayuki Nakanishi,and Shigeru Niki
TCOsAND WINDOW LAYERS
Transparent Conducting Oxide Sculptured Thin Films forPhotovoltaic Applications 273
N.J. Podraza, Chi Chen, D. Sainju, O. Ezekoye, M.W. Horn,C.R. Wronski, and R.W. Collins
*Invited Paper
IX
www.cambridge.org© in this web service Cambridge University Press
Cambridge University Press978-1-107-40896-8 - Materials Research Society Symposium Proceedings: Volume 865:Thin-Film Compound Semiconductor PhotovoltaicsEditors: William Shafarman, Timothy Gessert, Shigeru Niki and Susanne SiebentrittFrontmatterMore information
Design of a Window Layer for Flexible Cu(In,Ga)Se2
Thin Film Solar Cell Devices 279Christian A. Kaufmann, Axel Neisser, Reiner Klenk,Roland Scheer, and Hans-Werner Schock
BACK CONTACTS
Dependence of the MoSe2 Formation on the Mo Orientationand the Na Concentration for Cu(In,Ga)Se2 Thin-Film SolarCells 287
Daniel Abou-Ras, Debashis Mukherji, Gernot Kostorz,David Bremaud, Marc Kalin, Dominik Rudmann,Max Dobeli, and Ayodhya N. Tiwari
Understanding Aniline Surface Treatment of CdTe 293Kevin D. Dobson, Stephanie A. Einstein,Daniel D. Sadowsky, Brian E. McCandless,and Robert W. Birkmire
p-ZnTe for Back Contacts to CdTe Thin Film Solar Cells 299Bettina Spath, Jochen Fritsche, Andreas Klein, andWolfram Jaegermann
GRAIN BOUNDARIES ANDINHOMOGENEITIES
* Physics of CdTe Photovoltaics: From Front to Back 307V.G. Karpov, Diana Shvydka, and Yann Roussillon
Two-Dimensional and Multi-Experimental Modeling ofPolycrystalline Cu(In,Ga)Se2 Solar Cells 319
W.K. Metzger, M. Gloeckler, and R.K. Ahrenkiel
PERFORMANCE OF SOLAR CELLS
* Novel Wide-Band-Gap Ag(InlxGax)Se2 Thin FilmSolar Cells 327
Tokio Nakada, Keiichiro Yamada, Ryota Arai,Hiroki Ishizaki, and Naoomi Yamada
*Invited Paper
www.cambridge.org© in this web service Cambridge University Press
Cambridge University Press978-1-107-40896-8 - Materials Research Society Symposium Proceedings: Volume 865:Thin-Film Compound Semiconductor PhotovoltaicsEditors: William Shafarman, Timothy Gessert, Shigeru Niki and Susanne SiebentrittFrontmatterMore information
Electronic Properties of Modified CuGaSe2 Solar Cells 335Jehad A. AbuShama, Steve W. Johnston,David L. Young, and Rommel Noufi
Effect of Zn and Mg Doping on CuInS Thin Films andSolar Cells 341
Tobias Enzenhofer, Thomas Unold, Roland Scheer,and Hans-Werner Schock
High-Efficiency CdTe Polycrystalline Thin-Film SolarCells With an Ultra-Thin CuxTe Transparent Back-Contact 347
X. Wu, J. Zhou, A. Duda, J.C. Keane, T.A. Gessert,Y. Yan, and R. Noufi
ELECTRICAL CHARACTERIZATION
Current Transients in CdS/CdTe Solar Cells 355Alan Fahrenbruch
Spatial and Temporal Variations in Electronic TransportThrough a CdTe-Based Schottky Barrier 361
Diana Shvydka, V. Parikh, V.G. Karpov, and A.D. Compaan
Influence of Traps on Carrier Concentration ProfilesMeasured by Capacitance-Voltage and Drive LevelProfiling in CIGSe-Based Heterojunctions 367
P. Zabierowski, M. Cwil, and M. Edoff
Detailed Study of Metastable Effects in the Cu(InGa)Se2
Alloys: Test of Defect Creation Models 373JinWoo Lee, Jennifer T. Heath, J. David Cohen, andWilliam N. Shafarman
POSTER SESSION II
Simulation of Polycrystalline Cu(In,Ga)Se2 Solar Cells inTwo Dimensions 381
Markus Gloeckler, Wyatt K. Metzger, and James R. Sites
Optimization of RF-Sputtered ITO Films for High NIRTransparency at Low Deposition Temperature 387
J. Zhou, X. Wu, T.A. Gessert, Y. Yan, G. Teeter, andH.R. Moutinho
XI
www.cambridge.org© in this web service Cambridge University Press
Cambridge University Press978-1-107-40896-8 - Materials Research Society Symposium Proceedings: Volume 865:Thin-Film Compound Semiconductor PhotovoltaicsEditors: William Shafarman, Timothy Gessert, Shigeru Niki and Susanne SiebentrittFrontmatterMore information
Wide-Gap CIGS Solar Cells With Zn^yMgyO TransparentConducting Film 393
K. Matsubara, A. Yamada, S. Ishizuka, K. Sakurai, H. Tampo,Y. Kimura, S. Nakamura, M. Yonemura, H. Nakanishi, andS. Niki
Structural, Optical and Electrical Properties of TransparentConducting CuInO2 Thin Films Prepared by RF Sputtering 399
Bin Yang, Yunbin He, Angalika Polity, and Bruno K. Meyer
Transparent ZnTe:Cu Contacts for Bifacial Characterizationof CdTe Solar Cells 405
Darshini Desai, Steven Hegedus, Brian McCandless, andDaniel Ryan
Does CdTe Deposition Affect the Impurity Profile inSputtered CdS Window Layers? 411
Mahieddine Emziane, Ken Durose, Douglas P. Halliday,Alessio Bosio, and Nicola Romeo
Properties of Cu(In,Ga)Se2:Fe Thin Films For Solar Cells 417Keiichiro Sakurai, Hajime Shibata, Satoshi Nakamura,Minoru Yonemura, Shinpei Kuwamori, Yasuyuki Kimura,Shogo Ishizuka, Akimasa Yamada, Koji Matsubara,Hisayuki Nakanishi, and Shigeru Niki
Effect of Stresses in Molybdenum Back Contact Film onProperties of CIGSS Absorber Layer 423
Ankur A. Kadam, Anant H. Jahagirdar, andNeelkanth G. Dhere
Growth Mechanisms of Electrodeposited CuInSe2 andCu(In,Ga)Se2 Determined by Cyclic Voltammetry 431
M. Estela Calixto, Kevin D. Dobson, Brian E. McCandless,and Robert W. Birkmire
Performance of CuGaSe2 Solar Cells Grown ByCo-Evaporation Process 437
Jae Ho Yun, R.B.V. Chalapathy, Seok Ki Kim,Jeong Chul Lee, Jinsoo Song, and Kyung Hoon Yoon
Solar Cells Prepared With Spray-ILGAR Indium SulfideBuffer Layers on Cu(In,Ga)Se2 Absorbers 443
Nicholas A. Allsop, Christian A. Kaufmann,Axel Neisser, Marin Rusu, Andreas Hansel,Martha C. Lux-Steiner, and Christian-H. Fischer
xn
www.cambridge.org© in this web service Cambridge University Press
Cambridge University Press978-1-107-40896-8 - Materials Research Society Symposium Proceedings: Volume 865:Thin-Film Compound Semiconductor PhotovoltaicsEditors: William Shafarman, Timothy Gessert, Shigeru Niki and Susanne SiebentrittFrontmatterMore information
High-Efficient ZnO/PVD-CdS/Cu(In,Ga)Se2 Thin FilmSolar Cells: Formation of the Buffer-Absorber Interfaceand Transport Properties 449
Marin Rusu, Thilo Glatzel, Christian A. Kaufmann,Axel Neisser, Susanne Siebentritt, Sascha Sadewasser,Thomas Schedel-Niedrig, and Martha Ch. Lux-Steiner
Formation and Characterization of the CuIn(S,Se)2/BufferLayer Interface in Electrodeposited Solar Cells 457
N. Naghavi, C. Hubert, O. Roussel, L. Sapin, M. Lamirand,J.F. Guillemoles, D. Lincot, J. Kessler, and O. Kerrec
Growth of CuInSe2 Monograin Powders With DifferentCompositions 463
Marit Kauk, Mare Altosaar, Jaan Raudoja, Kristi Timmo,Maarja Grossberg, Tiit Varema, and Enn Mellikov
Rapid Thermal Annealing on Cu(In,Ga)Se2 Films andSolar Cells 471
Xuege Wang, Sheng S. Li, V. Craciun, S. Yoon,J.M. Howard, S. Easwaran, O. Manasreh,O.D. Crisalle, and TJ. Anderson
Large Area Cu(In,Ga)Se2 Films and Devices on FlexibleSubstrates Made by Sputtering 477
Dennis R. Hollars, Randy Dorn, P.D. Paulson,Jochen Titus, and Robert Zubeck
CdSe Thin Film Preparation by Unipolar Current PulseElectrodeposition Technique 483
Kiran Jain, N. Karar, and H. Chandra
SOLAR CELL TECHNOLOGY
Flexible, Monolithically Integrated Cu(In,Ga)Se2
Thin-Film Solar Modules 491Dirk Herrmann, Friedrich Kessler, Ulf Klemm,Robert Kniese, Theresa Magorian Friedlmeier,Stefanie Spiering, Wolfram Witte, and Michael Powalla
* In Situ Sensors for CIGS Deposition and Manufacture 499I.L. Repins, N. Gomez, L. Simpson, and B. Joshi
*Invited Paper
Xlll
www.cambridge.org© in this web service Cambridge University Press
Cambridge University Press978-1-107-40896-8 - Materials Research Society Symposium Proceedings: Volume 865:Thin-Film Compound Semiconductor PhotovoltaicsEditors: William Shafarman, Timothy Gessert, Shigeru Niki and Susanne SiebentrittFrontmatterMore information
WIDE GAP CHALCOPYRITES
Band Gap and Interface Engineering of Wide GapCu-Containing Chalcopyrite Absorbers by Dry(In,Ga)-S Surface Treatments 513
David Fuertes Marron, Sebastian Lehmann,Thomas Schedel-Niedrig, Joachim Klaer,Reiner Klenk, and Martha Ch. Lux-Steiner
Characterization of the Electronic Properties of WideBandgap CuIn(SeS)2 Alloys 519
Adam F. Halverson, Peter T. Erslev, Jin Woo Lee,J. David Cohen, and William N. Shafarman
Band Gap Fluctuations in Cu(In,Ga)Se2 Thin Films 525Julian Mattheis, Thomas Schlenker, Martin Bogicevic,Uwe Rau, and Jtirgen H. Werner
Optical, Structural and Electronic Properties of CuInS2
Solar Cells Deposited by Reactive Magnetron Sputtering 531T. Unold, T. Enzenhofer, and K. Ellmer
Author Index 537
Subject Index 541
xiv
www.cambridge.org© in this web service Cambridge University Press
Cambridge University Press978-1-107-40896-8 - Materials Research Society Symposium Proceedings: Volume 865:Thin-Film Compound Semiconductor PhotovoltaicsEditors: William Shafarman, Timothy Gessert, Shigeru Niki and Susanne SiebentrittFrontmatterMore information
PREFACE
Thin-film photovoltaics have demonstrated efficiencies approaching 20% and are leadingcandidates to provide low cost renewable energy due to potential advantages in manufacturingand materials costs. Symposium F, "Thin-Film Compound Semiconductor Photovoltaics," heldMarch 29-April 1 at the 2005 MRS Spring Meeting in San Francisco, California, focused onchalcogenide semiconductors such as Cu(InGa)(SeS)2, CdTe, and CdS, on transparent conductingoxides, and on photovoltaic devices using these materials. This volume contains papers presentedat that symposium.
The symposium included three and a half days of oral sessions and two evening postersessions, and this volume is organized according to the program sessions. The symposium includedthirteen invited papers which reviewed critical areas of research on these materials and devices andpresent some particularly exciting new results. The application of recent advances in materialscharacterization to compound semiconductor thin films was a theme throughout the symposium.Particular highlights included results obtained with photoelectron spectroscopy, high resolutiontransmission electron microscopy, atomic probe techniques, and spectroscopic ellipsometry onthese materials which provide new insights into surface, grain boundary and bulk properties.Several papers also presented results on new materials including different alloys of CuInSe2 andCdTe.
The symposium included two discussion sessions. The first was "Back contacts: Are they thekey to improved Cu(InGa)Se2 and CdTe solar cells?" There was general agreement that thecontacts are controlled by interfacial layers but the effects on film growth and devices are stillpoorly understood. The second discussion was "Critical issues for thin film polycrystalline PV:What do we have and where are we going?" A lively session was dominated by efforts to definethe relative value of fundamental and more applied research for helping a nascent PV industry.
A highlight of the symposium for many of its students and new researchers was the YoungScientist Tutorial on Characterization Techniques for Thin-Film Solar Cells with instructorsD. Abou-Ras, X. Liu, J. Heath, and T. Rissom. This tutorial focused on fundamentals ofcharacterization methods being utilized in the research and development of these materials anddevices. A unique aspect of this tutorial was that it was presented by students and youngresearchers for students and young researchers to encourage an open atmosphere for discussionsand scientific exchange.
The organizers would like to thank all of the attendees who made this symposium exciting andthought-provoking and also the authors whose contributions to this proceedings, we believe, willmake it a valuable and lasting contribution to the field of thin-film photovoltaics. We would alsolike to thank the National Renewable Energy Laboratory, the Air Force Research Laboratory,DuPont Central Research and Development, and Shell Solar Industries for their generous supportof the symposium.
William ShafarmanTimothy GessertShigeru NikiSusanne Siebentritt
September 2005
www.cambridge.org© in this web service Cambridge University Press
Cambridge University Press978-1-107-40896-8 - Materials Research Society Symposium Proceedings: Volume 865:Thin-Film Compound Semiconductor PhotovoltaicsEditors: William Shafarman, Timothy Gessert, Shigeru Niki and Susanne SiebentrittFrontmatterMore information
MATERIALS RESEARCH SOCIETY SYMPOSIUM PROCEEDINGS
Volume 828— Semiconductor Materials for Sensing, S. Seal, M-I. Baraton, N. Murayama, C. Parrish, 2005,ISBN: 1-55899-776-8
Volume 829— Progress in Compound Semiconductor Materials IV—Electronic and OptoelectronicApplications, GJ. Brown, M.O. Manasreh, C. Gmachl, R.M. Biefeld, K. Unterrainer, 2005,ISBN: 1-55899-777-6
Volume 830— Materials and Processes for Nonvolatile Memories, A. Claverie, D. Tsoukalas, T-J. King,J. Slaughter, 2005, ISBN: 1-55899-778-4
Volume 831— GaN, A1N, InN and Their Alloys, C. Wetzel, B. Gil, M. Kuzuhara, M. Manfra, 2005,ISBN: 1-55899-779-2
Volume 832— Group-IV Semiconductor Nanostructures, L. Tsybeskov, D.J. Lockwood, C. Delerue,M. Ichikawa, 2005, ISBN: 1-55899-780-6
Volume 833— Materials, Integration and Packaging Issues for High-Frequency Devices II, Y.S. Cho,D. Shiffler, C.A. Randall, H.A.C. Tilmans, T. Tsurumi, 2005, ISBN: 1-55899-781-4
Volume 834— Magneto-Optical Materials for Photonics and Recording, K. Ando, W. Challener, R. Gambino,M. Levy, 2005, ISBN: 1-55899-782-2
Volume 835— Solid-State Ionics—2004, P. Knauth, C. Masquelier, E. Traversa, E.D. Wachsman, 2005,ISBN: 1-55899-783-0
Volume 836— Materials for Photovoltaics, R. Gaudiana, D. Friedman, M. Durstock, A. Rockett, 2005,ISBN: 1-55899-784-9
Volume 837— Materials for Hydrogen Storage—2004, T. Vogt, R. Stumpf, M. Heben, I. Robertson, 2005,ISBN: 1-55899-785-7
Volume 83 8E—Scanning-Probe and Other Novel Microscopies of Local Phenomena in NanostructuredMaterials, S.V. Kalinin, B. Goldberg, L.M. Eng, B.D. Huey, 2005, ISBN: 1-55899-786-5
Volume 839— Electron Microscopy of Molecular and Atom-Scale Mechanical Behavior, Chemistry andStructure, D. Martin, D.A. Muller, E. Stach, P. Midgley, 2005, ISBN: 1-55899-787-3
Volume 840— Neutron and X-Ray Scattering as Probes of Multiscale Phenomena, S.R. Bhatia, P.G. Khalifah,D. Pochan, P. Radaelli, 2005, ISBN: 1-55899-788-1
Volume 841— Fundamentals of Nanoindentation and Nanotribology III, D.F. Bahr, Y-T. Cheng, N. Huber,A.B. Mann, K.J. Wahl, 2005, ISBN: 1-55899-789-X
Volume 842— Integrative and Interdisciplinary Aspects of Intermetallics, M.J. Mills, H. Clemens, C-L. Fu,H. Inui, 2005, ISBN: 1-55899-790-3
Volume 843— Surface Engineering 2004—Fundamentals and Applications, J.E. Krzanowski, S.N. Basu,J. Patscheider, Y. Gogotsi, 2005, ISBN: 1-55899-791-1
Volume 844— Mechanical Properties of Bioinspired and Biological Materials, C. Viney, K. Katti, F-J. Ulm,C. Hellmich, 2005, ISBN: 1-55899-792-X
Volume 845— Nanoscale Materials Science in Biology and Medicine, C.T. Laurencin, E. Botchwey, 2005,ISBN: 1-55899-793-8
Volume 846— Organic and Nanocomposite Optical Materials, A. Cartwright, T.M. Cooper, S. Kama,H. Nakanishi, 2005, ISBN: 1-55899-794-6
Volume 847— Organic/Inorganic Hybrid Materials—2004, C. Sanchez, U. Schubert, R.M. Laine, Y. Chujo,2005, ISBN: 1-55899-795-4
Volume 848— Solid-State Chemistry of Inorganic Materials V, J. Li, M. Jansen, N. Brese, M. Kanatzidis, 2005,ISBN: 1-55899-796-2
Volume 849— Kinetics-Driven Nanopatterning on Surfaces, E. Wang, E. Chason, H. Huang, G.H. Gilmer,2005, ISBN: 1-55899-797-0
Volume 850— Ultrafast Lasers for Materials Science, MJ. Kelley, E.W. Kreutz, M. Li, A. Pique, 2005,ISBN: 1-55899-798-9
Volume 851— Materials for Space Applications, M. Chipara, D.L. Edwards, S. Phillips, R. Benson, 2005,ISBN: 1-55899-799-7
Volume 852— Materials Issues in Art and Archaeology VII, P. Vandiver, J. Mass, A. Murray, 2005,ISBN: 1-55899-800-4
Volume 853E—Fabrication and New Applications of Nanomagnetic Structures, J-P. Wang, PJ. Ryan,K. Nielsch, Z. Cheng, 2005, ISBN: 1-55899-805-5
Volume 854E—Stability of Thin Films and Nanostructures, R.P. Vinci, R. Schwaiger, A. Karim, V. Shenoy,2005, ISBN: 1-55899-806-3
Volume 855E—Mechanically Active Materials, K.J. Van Vliet, R.D. James, P.T. Mather, W.C. Crone, 2005,ISBN: 1-55899-807-1
www.cambridge.org© in this web service Cambridge University Press
Cambridge University Press978-1-107-40896-8 - Materials Research Society Symposium Proceedings: Volume 865:Thin-Film Compound Semiconductor PhotovoltaicsEditors: William Shafarman, Timothy Gessert, Shigeru Niki and Susanne SiebentrittFrontmatterMore information
MATERIALS RESEARCH SOCIETY SYMPOSIUM PROCEEDINGS
Volume 856E—Multicomponent Polymer Systems—Phase Behavior, Dynamics and Applications, K.I. Winey,M. Dadmun, C. Leibig, R. Oliver, 2005, ISBN: 1-55899-808-X
Volume 858E— Functional Carbon Nanotubes, D.L. Carroll, B. Weisman, S. Roth, A. Rubio, 2005,ISBN: 1-55899-810-1
Volume 859E—Modeling of Morphological Evolution at Surfaces and Interfaces, J. Evans, C. Orme, M. Asta,Z. Zhang, 2005, ISBN: 1-55899-811-X
Volume 860E—Materials Issues in Solid Freeforming, S. Jayasinghe, L. Settineri, A.R. Bhatti, B-Y. Tay, 2005,ISBN: 1-55899-812-8
Volume 86IE—Communicating Materials Science—Education for the 21st Century, S. Baker, F. Goodchild,W. Crone, S. Rosevear, 2005, ISBN: 1-55899-813-6
Volume 862— Amorphous and Nanocrystalline Silicon Science and Technology—2005, R. Collins, P.C. Taylor,M. Kondo, R. Carius, R. Biswas, 2005, ISBN 1-55899-815-2
Volume 863— Materials, Technology and Reliability of Advanced Interconnects—2005, P.R. Besser,A.J. McKerrow, F. Iacopi, C.P. Wong, J. Vlassak, 2005, ISBN 1-55899-816-0
Volume 864— Semiconductor Defect Engineering—Materials, Synthetic Structures and Devices, S. Ashok,J. Chevallier, B.L. Sopori, M. Tabe, P. Kiesel, 2005, ISBN 1-55899-817-9
Volume 865— Thin-Film Compound Semiconductor Photovoltaics, W. Shafarman, T. Gessert, S. Niki,S. Siebentritt, 2005, ISBN 1-55899-818-7
Volume 866— Rare-Earth Doping for Optoelectronic Applications, T. Gregorkiewicz, Y. Fujiwara, M. Lipson,J.M. Zavada, 2005, ISBN 1-55899-819-5
Volume 867— Chemical-Mechanical Planarization—Integration, Technology and Reliability, A. Kumar, J.A. Lee,Y.S. Obeng, I. Vos, E.C. Jones, 2005, ISBN 1-55899-820-9
Volume 868E— Recent Advances in Superconductivity—Materials, Synthesis, Multiscale Characterization andFunctionally Layered Composite Conductors, T. Holesinger, T. Izumi, J.L. MacManus-Driscoll,D. Miller, W. Wong-Ng, 2005, ISBN 1-55899-822-5
Volume 869— Materials, Integration and Technology for Monolithic Instruments, J. Theil, T. Blalock, M. Boehm,D.S. Gardner, 2005, ISBN 1-55899-823-3
Volume 870E—Giant-Area Electronics on Nonconventional Substrates, M.S. Shur, P. Wilson, M. Stutzmann,2005, ISBN 1-55899-824-1
Volume 87IE— Organic Thin-Film Electronics, A.C. Arias, N. Tessler, L. Burgi, J.A. Emerson, 2005,ISBN 1-55899-825-X
Volume 872— Micro- and Nanosystems—Materials and Devices, D. LaVan, M. McNie, S. Prasad, C.S. Ozkan,2005, ISBN 1-55899-826-8
Volume 873E—Biological and Bio-Inspired Materials and Devices, K.H. Sandhage, S. Yang, T. Douglas,A.R. Parker, E. DiMasi, 2005, ISBN 1-55899-827-6
Volume 874E—Structure and Mechanical Behavior of Biological Materials, P. Fratzl, W.J. Landis, R. Wang,F.H. Silver, 2005, ISBN 1-55899-828-4
Volume 875— Thin Films—Stresses and Mechanical Properties XI, T. Buchheit, R. Spolenak, K. Takashima,A. Minor, 2005, ISBN 1-55899-829-2
Volume 876E—Nanoporous and Nanostructured Materials for Catalysis, Sensor and Gas Separation Applications,S.W. Lu, H. Hahn, J. Weissmuller, J.L. Gole, 2005, ISBN 1-55899-830-6
Volume 877E—Magnetic Nanoparticles and Nanowires, D. Kumar, L. Kurihara, I.W. Boyd, G. Duscher,V. Harris, 2005, ISBN 1-55899-831-4
Volume 878E—Solvothermal Synthesis and Processing of Materials, S. Komarneni, M. Yoshimura, G. Demazeau,2005, ISBN 1-55899-832-2
Volume 879E—Chemistry of Nanomaterial Synthesis and Processing, X. Peng, X. Feng, J. Liu, Z. Ren,J.A. Voigt, 2005, ISBN 1-55899-833-0
Volume 880E—Mechanical Properties of Nanostructured Materials—Experiments and Modeling, J.G. Swadener,E. Lilleodden, S. Asif, D. Bahr, D. Weygand, 2005, ISBN 1-55899-834-9
Volume 88IE—Coupled Nonlinear Phenomena—Modeling and Simulation for Smart, Ferroic and MultiferroicMaterials, R.M. McMeeking, M. Kamlah, S. Seelecke, D. Viehland, 2005, ISBN 1-55899-835-7
Volume 882E—Linking Length Scales in the Mechanical Behavior of Materials, T.J. Balk, R.E. Rudd,N. Bernstein, W. Windl, 2005, ISBN 1-55899-836-5
Volume 883— Advanced Devices and Materials for Laser Remote Sensing, F. Amzajerdian, A.A. Dyrseth,D. Killinger, L. Merhari, 2005, ISBN 1-55899-837-3
Volume 884E—Materials and Technology for Hydrogen Storage and Generation, G-A. Nazri, C. Ping,R.C. Young, M. Nazri, J. Wang, 2005, ISBN 1-55899-838-1
Prior Materials Research Society Symposium Proceedings available by contacting Materials Research Society
www.cambridge.org© in this web service Cambridge University Press
Cambridge University Press978-1-107-40896-8 - Materials Research Society Symposium Proceedings: Volume 865:Thin-Film Compound Semiconductor PhotovoltaicsEditors: William Shafarman, Timothy Gessert, Shigeru Niki and Susanne SiebentrittFrontmatterMore information