Ge-alloyed kesterite thin-film solar cells: previous investigations and current status–a comprehensive review

R Scaffidi, G Birant, G Brammertz, J de Wild… - Journal of Materials …, 2023 - pubs.rsc.org
The incorporation of Ge into kesterite thin-film absorbers for photovoltaic (PV) applications is
thoroughly reviewed. Kesterite materials constitute a promising and critical raw material-free …

Synthesis, structure, linear and nonlinear optical properties of noncentrosymmetric quaternary diamond-like semiconductors, Cu2ZnGeSe4 (CZGSe) and the novel …

CW Sinagra III, FO Saouma, CO Otieno… - Journal of Alloys and …, 2021 - Elsevier
In this study, two quaternary diamond-like semiconductors (DLSs) in the Cu-Zn-Ge-Se
system, the known Cu 2 ZnGeSe 4 (also referred to as CZGSe) and the new Cu 4 ZnGe 2 Se …

Electronic structure of Cu2ZnGeSe4 single crystal: Ab initio FP-LAPW calculations and X-ray spectroscopy measurements

OY Khyzhun, VL Bekenev, VA Ocheretova… - Physica B: Condensed …, 2015 - Elsevier
Abstract High-quality Cu 2 ZnGeSe 4 single crystal has been successfully grown by a
solution-fusion method and the crystal structure of the compound is refined within tetragonal …

First-principles study of the optoelectronic properties and photovoltaic absorber layer efficiency of Cu-based chalcogenides

N Sarmadian, R Saniz, B Partoens… - Journal of Applied …, 2016 - pubs.aip.org
Cu-based chalcogenides are promising materials for thin-film solar cells with more than 20%
measured cell efficiency. Using first-principles calculations based on density functional …

Studies of compositional dependent Cu2Zn (GexSn1− x) S4 thin films prepared by sulfurizing sputtered metallic precursors

J Chen, W Li, C Yan, S Huang, X Hao - Journal of Alloys and Compounds, 2015 - Elsevier
Abstract Ge-substituted Cu 2 ZnSnS 4 (CZTS) thin films are promising for solar cell
manufacturing, especially for graded-band-gap solar cells and multi-junction solar cells …

Valence-band electronic structure and main optical properties of Cu2HgGeTe4: Theoretical simulation within a DFT framework and experimental XPS study

BV Gabrelian, AA Lavrentyev, TV Vu… - Materials Today …, 2020 - Elsevier
Comprehensive study from an experimental and theoretical viewpoint on the electronic
structure and optical properties is made for quaternary telluride Cu 2 HgGeTe 4. In …

Morphological evolution and structural properties of Cu2ZnSn (S, Se) 4 thin films deposited from single ceramic target by a one-step sputtering process and …

M Tsega, FB Dejene, DH Kuo - Journal of Alloys and Compounds, 2015 - Elsevier
Abstract Cu 2 ZnSn (SSe) 4 (CZTSSe) thin films were successfully deposited on TiN/Mo-
coated glass substrate using RF-sputtering from single ceramic CZTSSe target, followed by …

Cu2ZnGeS4 Nanocrystals from Air-Stable Precursors for Sintered Thin Film Alloys

ASR Chesman, J Van Embden… - Chemistry of …, 2014 - ACS Publications
The synthesis of an air and moisture stable germanium complex and its use in the synthesis
of ternary and quaternary copper containing nanocrystals (NCs) is described. Through the …

Quaternary Cu2HgGeSe4 selenide: Its electronic and optical properties as elucidated from TB-mBJ band-structure calculations and XPS and XES measurements

BV Gabrelian, AA Lavrentyev, TV Vu, VA Tkach… - Chemical Physics, 2020 - Elsevier
We report on band-structure calculations, within a density functional theory (DFT), of total
and projected densities of states as well as experimental investigation of the electronic …

Study of structural and optoelectronic properties of Cu2Zn (Sn1− xGex) Se4 (x= 0 to 1) alloy compounds

M Grossberg, K Timmo, T Raadik, E Kärber, V Mikli… - Thin Solid Films, 2015 - Elsevier
In this work, the optoelectronic and structural properties of Cu 2 Zn (Sn 1− x Ge x) Se 4
(CZTGeSe) alloy compounds with x varying from 0 to 1 with a step of 0.1 were studied. The …