Copper-doped semiconductors are classic phosphor materials that have been used in a
variety of applications for many decades. Colloidal copper-doped semiconductor …

Solar cells based on copper ternary chalcogenide compounds and alloys have emerged
over the last 20 years as a promising solution to the problem of high-cost solar cells. Solar …

Chalcopyrite-based solar cells have reached an efficiency of 23.35%, yet further
improvements have been challenging. Here we present a 23.64% certified efficiency for a …

This first comprehensive description of the most important material properties and device
aspects closes the gap between general books on solar cells and journal articles on …

We studied the defect physics in CuInSe 2, a prototype chalcopyrite semiconductor. We
showed that (i) it takes much less energy to form a Cu vacancy in CuInSe 2 than to form …

We summarize the progress made recently in understanding the electronic structure of
chalcopyrites. New insights into the dispersion of valence and conduction band allow …

A fully self-contained study of the thermodynamic and electronic properties of intrinsic point
defects in the solar absorber materials CuInSe 2 and CuGaSe 2 based on screened …

Abstract Cu (In, Ga) Se 2 (CIGS) films were deposited with intentionally incorporated Na 2
Se by a multi-step process onto SiO x/soda-lime glass substrates at elevated temperatures …

The electrical and thermal properties of CuInSe 2 single crystals have been reviewed and in
some cases, taking into account recently reported experimental values for the transport …

The electronic defects in any semiconductor play a decisive role for the usability of this
material in an optoelectronic device. Electronic defects determine the doping level as well as …