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Research- Fundamental or Applied? A Personal Journey
Prof. Allen Hermann Department of Physics University of Colorado Boulder, CO 80409 USA
Background in Fundamental studies (Hall Effect,
thermoelectric power, resistivity and
photoconductivity, etc.) on Molecular Solids
…Led to discovery of Solid State Battery used in
today’s Cardiac Pacemekers
Li LiI
PVP-I CT complex
Li+
Superconductors
Search for Excitonic Superconductivity
in Thin Films on Polarizable substrates-
not successful
Search for Superconductivity in 2D Intercalated Materials
Alkali-metal Intercalated
Dichalcogenides (Successful-
A New 4K superconductor!)
K-MoS2
Search for Superconductivity (or high conductivity) in Organic Low-dimensional materials
Search for New High Temperature Cuprate
Superconductors
Highly Successful – Discovered the Tl-cuprate System
Solar Cells
Si Space Solar Cells
Thin Film Amorphous Si
Cu(In,Ga)Se2 Cells CIS, CIGS
Other Polycrystalline Thin Film Cells
Tunable Microwave Devices
Nanotechnology
Nanostructured Organic Solar Cells
Nanostructured Batteries
20 nm nanorods of MnO2 for positive electrodes
in Li ion batteries
New dopeable ceramic semiconductors
