Progress in Thin-Film Photovoltaics: A Review of Key Strategies to Enhance the Efficiency of CIGS, CdTe, and CZTSSe Solar Cells

被引:2
作者
Sivasankar, Sivabalan Maniam [1 ]
Amorim, Carlos de Oliveira [1 ]
da Cunha, Antonio F. [1 ]
机构
[1] Univ Aveiro, Dept Phys, I3N, Aveiro, Portugal
关键词
thin-film solar cells; photovoltaics; CIGS; CdTe; CZTS; bandgap engineering; OPTOELECTRONIC PROPERTIES; ENVIRONMENTAL IMPACTS; DOPED CU2ZNSNS4; GA; ABSORBER; CU; TECHNOLOGIES; PERFORMANCE; FABRICATION; CU2ZNGESE4;
D O I
10.3390/jcs9030143
中图分类号
TB33 [复合材料];
学科分类号
摘要
Thin-film solar cells (TFSCs) represent a promising frontier in renewable energy technologies due to their potential for cost reduction, material efficiency, and adaptability. This literature review examines the key materials and advancements that make up TFSC technologies, with a focus on Cu(In,Ga)Se2 (CIGS), cadmium telluride (CdTe), and Cu2ZnSnS4 (CZTS) and its sulfo-selenide counterpart Cu2ZnSn(S,Se)4 (CZTSSe). Each material's unique properties-including tuneable bandgaps, high absorption coefficients, and low-cost scalability-make them viable candidates for a wide range of applications, from building-integrated photovoltaics (BIPV) to portable energy solutions. This review explores recent progress in the enhancement of power conversion efficiency (PCE), particularly through bandgap engineering, alkali metal doping, and interface optimization. Key innovations such as silver (Ag) alloying in CIGS, selenium (Se) alloying in CdTe, and sulfur (S) to Se ratio optimization in CZTSSe have driven PCE improvements and expanded the range of practical uses. Additionally, the adaptability of TFSCs for roll-to-roll manufacturing on flexible substrates has further cemented their role in advancing renewable energy adoption. Challenges remain, including environmental concerns, but ongoing research addresses these limitations, paving the way for TFSCs to become a crucial technology for transitioning to sustainable energy systems.
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页数:47
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