Results 151 to 160 of about 1,332 (187)

Flexible high-efficiency CZTSSe solar cells on stainless steel substrates

Journal of Materials Chemistry A, 2019
Stainless steel (SS) foil is made of abundant materials and is a durable and flexible substrate, but the efficiency of a solar cell on SS foil deterioratesviathe diffusion of impurities from the SS substrate into a Cu2ZnSn(S,Se)4(CZTSSe) absorber layer.
Kwangseok Ahn, Se-Yun Kim, Sammi Kim, Dae-Ho Son, Seung-Hyun Kim, SeongYeon Kim, JunHo Kim, Shi-Joon Sung, Dae-Hwan Kim, Jin-Kyu Kang   +9 more
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A band-gap-graded CZTSSe solar cell with 12.3% efficiency

Journal of Materials Chemistry A, 2016
Using an appropriate SeS2/Se weight ratio, band gap grading was realized. By increasing the value ofVOCthrough band gap grading in the depletion region, a recordVOCdeficit of 0.576 V and an efficiency of 12.3% were obtained.
Kee-Jeong Yang, Dae-Ho Son, Shi-Joon Sung, Jun-Hyoung Sim, Young-Ill Kim, Si-Nae Park, Dong-Hwan Jeon, JungSik Kim, Dae-Kue Hwang, Chan-Wook Jeon, Dahyun Nam, Hyeonsik Cheong, Jin-Kyu Kang, Dae-Hwan Kim   +13 more
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Impact of Lithium as Interfacial Treatment for CZTSSe Solar Cells

2024 IEEE 52nd Photovoltaic Specialist Conference (PVSC)
Cu2ZnSn(S,Se)4 (CZTSSe), despite its slow progress in terms of efficiency, stands out as a viable option for solar cell absorber materials due to its comparatively low-cost fabrication process, and abundance of constituent elements. The efficiency of CZTSSe faces challenges, particularly a notable Voc deficit arising from its non-stoichiometric nature ...
Simya, O. K, Anefnaf, Ikram, Punathil, Prabeesh, Artegiani, Elisa, Torabi, Narges, Mukhtar, Mariyam, Romeo, Alessandro   +6 more
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Novel solution processing of high efficiency earth abundant CZTSSe solar cells

2012 38th IEEE Photovoltaic Specialists Conference, 2012
We present a novel solution-based approach to process CZTSSe absorbers with molecular-level homogeneity. These devices have achieved 8.08 % power conversion efficiency using fully dissolved hydrazine-based CZTS precursor complexes in which each of the elemental constituents are mixed on the molecular level.
Wenbing Yang, Hsin-Sheng Duan, Brion Bob, Bao Lei, Sheng-Han Li, Yang Yang   +5 more
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Performance enhancement of flexible CZTSSe solar cells on optimized roughness substrate

Optical Engineering, 2018
Flexible Cu2ZnSn(S,Se)4 (CZTSSe) thin film solar cells are fabricated on titanium substrate by magnetron sputtering with a composition gradient precursor followed by selenization. By varying polishing time with diluted HNO3 and HF from 0 to 90 s, an atomic force microscope shows that the substrate with the minimal surface roughness of 8.6 nm is ...
Huirong Shang, Adil Raza, Hulin Huang, Honglie Shen, Luanhong Sun   +4 more
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Window layer engineering of kesterite CZTSSe thin-film solar cells

Journal of Materials Chemistry A
We successfully fabricated i-ZnO-free CZTSSe-based TFSCs with efficiencies exceeding 10% by employing a simplified window structure at a low substrate temperature.
Dong Hyun Kang, Jun Sung Jang, Dhanaji B. Malavekar, Youseong Park, Hojun Choi, Youngrog Kim, Eunjin Jo, Seung Wook Shin, Jin Hyeok Kim   +8 more
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Promoting effect of lanthanum doping on photovoltaic performance of CZTSSe solar cells

The Journal of Chemical Physics
A large open-circuit voltage (VOC) deficit is the major challenge hindering the efficiency improvement of Cu2ZnSn(S,Se)4 (CZTSSe) solar cells. Cation substitution, or doping, is usually an effective strategy to achieve carrier regulation and improve efficiency.
Zhengjun Luo, Lei Yu, Tingting Zheng, Xiaofei Dong, Fengxia Yang, Jiangtao Chen, Xuqiang Zhang, Yun Zhao, Yan Li   +8 more
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Study of CZTS and CZTSSe solar cells for buffer layers selection

Applied Surface Science, 2017
Abstract The output characteristics, of a thin film solar cell, are affected by several parameters related to the hetero-structure that is taken into account. In this paper, nontoxic thin film solar cells were studied. CdS/CZTS, CdS/CZTSSe, ZnS/CZTS and ZnS/CZTSSe hetero-junctions were numerically simulated using the Solar Cell Capacitance Simulator (
Abdelbaki Cherouana, Rebiha Labbani
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Enhanced CZTSSe Thin‐Film Solar Cell Efficiency: Key Parameter Analysis

physica status solidi (a)
This work presents a numerical simulation study on CZTSSe‐based thin‐film solar cells using Silvaco Atlas software, focusing on optimization and loss analysis. Starting from an initial power conversion efficiency of 12.73%, the ZnO/CdS/CZTSSe cell structure is systematically optimized.
Loumafak Hafaifa, Mostefa Maache, Selma Rabhi, Zehor Allam, Zineb Ibtissem Gouchida, Yazid Benbouzid, Achouak Zebeir, Razika Adjouz   +7 more
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Electrochemical Deposition of Highly Efficient Cztsse Thin Film Solar Cells

ECS Meeting Abstracts, 2014
Kesterite Cu2ZnSn(S,Se)4 (CZTSSe) thin films are attracting a lot of interest as an alternative system to Cu(In,Ga)Se2 (CIGS) thin films, owing to their majority carrier type (p-type), proper band gap energy (1.0-1.5 eV), and high optical absorption coefficient (> 104 cm-1). More promisingly, the CZTSSe is composed of earth-abundant (cf. In in CIGS),
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