Identifying the origin of the V oc deficit of kesterite solar cells from the two grain growth mechanisms induced by Sn 2+ and Sn 4+ precursors in DMSO solution

Y Gong, Y Zhang, Q Zhu, Y Zhou, R Qiu… - Energy & …, 2021 - pubs.rsc.org
Kesterite Cu2ZnSn (S, Se) 4 solar cells fabricated from DMSO molecular solutions exhibit
very different open circuit voltage (Voc) when the tin precursor has a different oxidation state …

A critical review on rational composition engineering in kesterite photovoltaic devices: self-regulation and mutual synergy

J Guo, J Ao, Y Zhang - Journal of Materials Chemistry A, 2023 - pubs.rsc.org
Composition engineering has been one of the most crucial strategies to match well with both
bulk and heterojunction interfaces of absorbers in kesterite-based Cu2ZnSn (S, Se) 4 …

Ag incorporation with controlled grain growth enables 12.5% efficient kesterite solar cell with open circuit voltage reached 64.2% Shockley–Queisser limit

Y Gong, R Qiu, C Niu, J Fu, E Jedlicka… - Advanced Functional …, 2021 - Wiley Online Library
The large open‐circuit voltage deficit (Voc, def) is the key issue that limits kesterite
(Cu2ZnSn (S, Se) 4,[CZTSSe]) solar cell performance. Substitution of Cu+ by larger ionic …

Progress and prospectives of solution-processed kesterite absorbers for photovoltaic applications

L Wang, Y Wang, Z Zhou, W Zhou, D Kou, Y Meng, Y Qi… - Nanoscale, 2023 - pubs.rsc.org
Solar cells based on emerging kesterite Cu2ZnSn (S, Se) 4 (CZTSSe) materials have
reached certified power conversion efficiency (PCE) as high as 13.6%, showing great …

Flexible Cu2ZnSn(S,Se)4 solar cells with over 10% efficiency and methods of enlarging the cell area

KJ Yang, S Kim, SY Kim, K Ahn, DH Son… - Nature …, 2019 - nature.com
For kesterite copper zinc tin sulfide/selenide (CZTSSe) solar cells to enter the market, in
addition to efficiency improvements, the technological capability to produce flexible and …

Sn4+ precursor enables 12.4% efficient kesterite solar cell from DMSO solution with open circuit voltage deficit below 0.30 V

Y Gong, Y Zhang, E Jedlicka, R Giridharagopal… - arXiv preprint arXiv …, 2020 - arxiv.org
The limiting factor preventing kesterite (CZTSSe) thin film solar cell performance further
improvement is the large open-circuit voltage deficit (Voc, def) issue, which is 0.345 V for the …

Synthesis, analysis, and characterization of structural and optical properties of thermally evaporated chalcogenide a-Cu-Zn-Ge-Se thin films

AS Hassanien, I Sharma - Materials Chemistry and Physics, 2024 - Elsevier
Thin novel amorphous thin Cu 25-x (ZnGe) 25-x Se 50+ 2x (CZGSe) films (0.0≤ x≤ 10.0 a
t.%) are synthesized by thermal evaporation deposition technique under the vacuum of≈ …

Sodium Effects on the Diffusion, Phase, and Defect Characteristics of Kesterite Solar Cells and Flexible Cu2ZnSn(S,Se)4 with Greater than 11% Efficiency

KJ Yang, S Kim, SY Kim, DH Son, J Lee… - Advanced Functional …, 2021 - Wiley Online Library
Improving the efficiency of kesterite (Cu2ZnSn (S, Se) 4; CZTSSe) solar cells requires
understanding the effects of Na doping. This paper investigates these effects by applying a …

A modeling study on utilizing SnS2 as the buffer layer of CZT (S, Se) solar cells

M Haghighi, M Minbashi, N Taghavinia, DH Kim… - Solar Energy, 2018 - Elsevier
CdS is conventionally used as the n-type buffer layer in chalcopyrite (CIG (S, Se)) and
Kesterite (CZT (S, Se)) solar cells. CdS is toxic and there are wide attempts to find …

Improving the efficiency of CZTSSe solar cells by engineering the lattice defects in the absorber layer

M Yousefi, M Minbashi, Z Monfared, N Memarian… - Solar Energy, 2020 - Elsevier
One of the major challenges in increasing the efficiency of the CZTSSe solar cells is to
control the lattice defects formation and secondary phases in the absorber layer of the cells …