MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
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2025
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IF 4.6
Rui Wang,Yanchun Yang,Guonan Cui,Lulu Bai,Zhihui Gong,Chengjun Zhu
CuSb(S, Se) 2 (CASSe) is known to have great potential for copper-based low-cost thin-film solar cells due to its excellent stability, earth-abundant raw materials, and suitability for the low-temperature preparation process. In this work, CASSe thin-film solar cells were prepared using the green n-butylammonium butyrate ionic solution-based method for the first time. The phase purity, crystallinity , morphology, and electrical properties of films prepared at different conditions (sintering and selenization conditions) were studied. With the help of the XRD , Raman spectra , SEM, and c-AFM measurements, the optimal preparation of CASSe thin film is confirmed at 230 °C for 3 min (sintering condition) and 390 °C for 20 min (selenization condition). Using glass/Mo/CuSb(S, Se) 2 /CdS/i-ZnO/ITO/Al as the structure of the device, the corresponding thin film solar cell can be fabricated, which presents a photoelectric conversion efficiency (PCE) of 0.14 %. Although the performance of the device is poor, our conclusions are meaningful in the development of CASSe material, supplementing the blank of preparing CASSe thin film solar cells by the green solution-based method.
研究领域:
材料科学
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新能源技术
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半导体薄膜
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光伏器件
✓ 已验证
产品关联
DOI
高影响因子
Solar RRL
·
2022
·Vol. 6
·期 8
·2200150
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IF 9.173
Chengfeng Ma,Chunxu Xiang,Xinge Liu,Bingyan Li,Xinyu Li,Shuaiqi Han,Qi Dai,Weibo Yan,Hao Xin
Solution-processed chalcopyrite copper indium gallium sulfoselenide (Cu(In,Ga)(S,Se) 2 , CIGSSe) thin-film solar cells have achieved efficiency beyond 18% and have great potential as an alternative to vacuum-based ones. However, most of the efficient solution-based CIGSSe solar cells are fabricated by spin-coating in an inert atmosphere, which limits the transfer from lab protocol to industrial large-scale production. Herein, a scalable doctor-blading technique is applied to fabricate CuIn(S,Se) 2 (CISSe) absorbers from N,N-dimethylformamide molecular precursor solution in ambient air. With the optimization of the precursor concentration to reduce the residue solvent and change the thermal annealing process from one-step to two-step to separate solvent evaporation and complex decomposition to suppress fluidity, high-quality absorber films with densely packed large grains have been fabricated and a champion CISSe solar cell with a power conversion efficiency of 12.54% has been achieved. Importantly, unlike the spin-coating technique which may cause composition change due to the different solubilities of the precursors, the doctor-bladed film has a composition very close to the precursor solution, which is very important for precise control of the absorber composition for industrial production.
研究领域:
材料科学
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可再生能源
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光伏技术
✓ 已验证
产品关联
DOI
高影响因子
Solar RRL
·
2025
·
IF 4.7
Yongliang Lai,Bowen Liu,Dongdong Shen,Zhuoer Deng,Xinan Shi,Daocheng Pan
Indium tin oxide (ITO) is usually served as the transparent conductive electrode of Cu(In, Ga)(S, -Se) 2 (CIGSSe) solar cells. However, ITO is fabricated by sputtering method, which will increase the cost of CIGSSe solar cells and prevent its large-scale market applications in the future. Hence, it is particularly important to develop low-cost transparent conductive window layers to replace the traditional ITO. Silver nanowires (AgNWs) are considered to be the most promising alternative to ITO. Compared with sputtered ITO, AgNWs have the advantages of high transmittance, low cost, and easy fabrication. Nevertheless, the poor adhesion and stability of AgNWs can prevent the transportation of carriers of CIGSSe solar cells. Here, we select amorphous TiO x as an adjuvant to fabricate AgNWs/TiO x composite transparent conductive layer to substitute the traditional ITO. Under the assistance of TiO x matrix, not only the connection, adhesion, and stability of AgNWs are greatly enhanced, but also the surface roughness of AgNWs is also reduced. The influence of AgNWs concentration on the performance of CIGSSe solar cells is investigated. When the AgNWs concentration is 2.5 mg/mL, the transmittance and sheet resistance of AgNWs thin film are 93.35% and 93 Ω/sq, respectively, and the devices achieved the highest efficiency of 13.59%.
研究领域:
材料科学
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能源技术
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光电技术
✓ 已验证
产品关联
DOI
高影响因子
CHEMISTRY OF MATERIALS
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2012
·
IF 7.286
Gang Wang,Shuyang Wang,Yong Cui,Daocheng Pan
A novel and versatile metal–organic molecular precursor-based solution approach and the fabrication of high efficiency Cu(In,Ga)(S,Se)2 solar cells are presented. Many types of metal oxides, hydroxides, and acetylacetonates (acac), such as Cu2O, ZnO, SnO, Sb2O3, MnO, PbO, In(OH)3, Cd(OH)2, Ga(acac)3, and so forth, can be easily dissolved in butyldithiocarbamic acid, forming thermally degradable metal–organic molecular precursor solutions. By developing a simple and green ethanol solution-processed route and tuning the chemical composition of the Cu(In,Ga)(S,Se)2 thin film, as-fabricated solar cells exhibit an average power conversion efficiency up to 8.8%.
研究领域:
材料科学
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可再生能源
✓ 已验证
产品关联
DOI
高影响因子
Carbon Energy
·
2025
·Vol. 7
·期 5
·e70001
·
IF 24.2
Qianfeng Wu,Chuanhao Li,Shuo Chen,Zhenghua Su,Muhammad Abbas,Chao Chen,Qianqian Lin,Jingting Luo,Liming Ding,Guangxing Liang
Visible and near-infrared photodetectors are widely used in intelligent driving, health monitoring, and other fields. However, the application of photodetectors in the near-infrared region is significantly impacted by high dark current, which can greatly reduce their performance and sensitivity, thereby limiting their effectiveness in certain applications. In this work, the introduction of a C 60 back interface layer successfully mitigated back interface reactions to decrease the thickness of the Mo(S,Se) 2 layer, tailoring the back-contact barrier and preventing reverse charge injection, resulting in a kesterite photodetector with an ultralow dark current density of 5.2 × 10 −9 mA/cm 2 and ultra-weak-light detection at levels as low as 25 pW/cm 2 . Besides, under a self-powered operation, it demonstrates outstanding performance, achieving a peak responsivity of 0.68 A/W, a wide response range spanning from 300 to 1600 nm, and an impressive detectivity of 5.27 × 10 14 Jones. In addition, it offers exceptionally rapid response times, with rise and decay times of 70 and 650 ns, respectively. This research offers important insights for developing high-performance self-powered near-infrared photodetectors that have high responsivity, rapid response times, and ultralow dark current.
研究领域:
光电子学
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光探测器
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材料科学
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半导体器件
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可再生能源
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）