Defect suppression in multinary chalcogenide photovoltaic materials derived from kesterite: progress and outlook

Q Tian, SF Liu - Journal of Materials Chemistry A, 2020 - pubs.rsc.org
The performance of many emerging multinary chalcogenides for photovoltaic (PV)
applications has been considerably inferior to the Shockley–Queisser limit, and one of the …

Origin of the low conversion efficiency in Cu 2 ZnSnS 4 kesterite solar cells: the actual role of cation disorder

W Chen, D Dahliah, GM Rignanese… - Energy & Environmental …, 2021 - pubs.rsc.org
The controversial role of cation disorder in the extraordinarily low open-circuit voltage (VOC)
of the Cu2ZnSnS4 (CZTS) kesterite absorber is examined through a statistical treatment of …

Evaluating optimal for transition-metal oxides within the SCAN+ framework

OY Long, G Sai Gautam, EA Carter - Physical Review Materials, 2020 - APS
Redox-active 3 d transition-metal oxides (TMOs) are crucial ingredients for multiple
sustainable energy applications, including solar cells, batteries, catalysis, and solar …

Suppressed Deep Traps and Bandgap Fluctuations in Cu2CdSnS4 Solar Cells with ≈8% Efficiency

S Hadke, S Levcenko, G Sai Gautam… - Advanced Energy …, 2019 - Wiley Online Library
The identification of performance‐limiting factors is a crucial step in the development of solar
cell technologies. Cu2ZnSn (S, Se) 4‐based solar cells have shown promising power …

Understanding the Effects of Cd and Ag Doping in Cu2ZnSnS4 Solar Cells

G Sai Gautam, TP Senftle, EA Carter - Chemistry of Materials, 2018 - ACS Publications
Cu2ZnSnS4-based solar cells, which constitute an inexpensive, beyond-Si photovoltaic
technology, often suffer from low open-circuit voltage and efficiency. This drawback is often …

A theoretical and experimental study of the valence-band electronic structure and optical constants of quaternary copper mercury tin sulfide, Cu2HgSnS4, a potential …

TV Vu, AA Lavrentyev, BV Gabrelian, HD Tong… - Optical Materials, 2019 - Elsevier
Experimental and theoretical studies on the electronic-band structure and optical constants
are made for the first time for quaternary copper mercury tin sulfide, Cu 2 HgSnS 4. The …

Optimizing kesterite solar cells from Cu 2 ZnSnS 4 to Cu 2 CdGe (S, Se) 4

RB Wexler, GS Gautam, EA Carter - Journal of Materials Chemistry A, 2021 - pubs.rsc.org
Kesterite solar cells, based on the prototypical absorber material Cu2ZnSnS4 (CZTS), are
cheap, nontoxic, and chemically stable, thus rendering them promising, beyond-Si …

Construction and Sampling of Alloy Cluster Expansions—A Tutorial

P Ekborg-Tanner, P Rosander, E Fransson, P Erhart - PRX Energy, 2024 - APS
Crystalline alloys and related mixed systems make up a large family of materials with high
tunability that have been proposed as the solution to a large number of energy-related …

Mercurial possibilities: determining site distributions in Cu 2 HgSnS 4 using 63/65 Cu, 119 Sn, and 199 Hg solid-state NMR spectroscopy

A Bhattacharya, V Mishra, DG Tkachuk, A Mar… - Physical Chemistry …, 2022 - pubs.rsc.org
Chalcogenides are an important class of materials that exhibit tailorable optoelectronic
properties accessible through chemical modification. For example, the minerals kesterite …

Local Cu component engineering to achieve continuous carrier transport for enhanced kesterite solar cells

Y Zhao, X Zhao, D Kou, W Zhou, Z Zhou… - … Applied Materials & …, 2021 - ACS Publications
Although the traditional Cu-poor architecture addresses many limitations for Cu2ZnSn (S,
Se) 4 solar cells, its further development still encounters a bottleneck in terms of efficiency …