The gallium gradient in Cu (In, Ga) Se2 (CIGS) layers, which forms during the two
industrially relevant deposition routes, the sequential and co‐evaporation processes, plays …

Computational models can provide significant insight into the operation mechanisms and
deficiencies of photovoltaic solar cells. Solcore is a modular set of computational tools …

We report in this letter the contactless measurement of spatially resolved photocurrent–
photovoltage relationship. The method is based on hyperspectral imaging, from which we …

In the past three years, record efficiency of Cu (In, Ga) Se2 (CIGS) based solar cells has
improved from 20% up to 22.6%. These results show that CIGS absorber is ideal for thin-film …

Abstract We demonstrate 2.0–2.2 eV AlGaInP solar cells grown by molecular beam epitaxy
and their performance improvement by rapid thermal annealing (RTA). As grown, these cells …

We demonstrate a photoluminescence (PL)-based contactless method to determine the
current-voltage (IV) characteristics of the individual subcells in a multijunction solar cell. The …

In this work, a low cost passivated back-contact for ultra-thin Cu (In, Ga) Se 2-based (CIGS)
solar cells to improve the carrier collection is developed. The current loss due to rear …

Polycrystalline Cu (In, Ga) Se2 films (CIGSe) show substantial local variations of properties
not only in regime of 10–100 nm but also in the scale length of few microns. We have …

Despite significant growth in photovoltaics (PV) over the last few years, only approximately
1.07 billion kWhr of electricity is estimated to have been generated from PV in the US during …

The emitted photoluminescence (PL) resulting from radiative recombination in
semiconductors is strongly governed by excess carrier density, which is influenced by …