ACS Applied Materials & Interfaces
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2024
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IF 8.3
Xiongzhuang Jiang,Cong Geng,Xinxin Yu,Junye Pan,Huiren Zheng,Cheng Liang,Bin Li,Fei Long,Liyuan Han,Yi-Bing Cheng,Yong Peng
Wide-bandgap semitransparent perovskite photovoltaics are emerging as one of the ideal candidates for building-integrated photovoltaics (BIPV). However, surface defects in inorganic CsPbBr3 perovskite prepared by vapor deposition severely limit the optoelectronic performance of perovskite solar cells. To address this issue, a strategy of doping a trace amount of KBr into perovskite by vapor deposition is adopted, effectively improving the quality of the film, reducing surface defect concentration, and enhancing the transportation and extraction of charge carriers. Simultaneously, fully physical vapor deposition technology is employed to fabricate perovskite solar cells with an average visible light transmittance of 44%. These devices exhibited an ultrahigh open-circuit voltage of 1.55 V and a superior power conversion efficiency (PCE) of 7.28%, demonstrating excellent moisture and heat resistance. Moreover, the corresponding 5 cm × 5 cm modules achieve a PCE of 5.35% with great thermal insulation capability. This work provides an approach for fabricating highly efficient all-inorganic perovskite solar cells with high average visible light transmittance, demonstrating new insights into their application in building-integrated photovoltaics.
研究领域:
材料科学
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能源技术
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光伏器件
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ADVANCED MATERIALS
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2025
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IF 26.8
Shengwen Zou,Yi Xin,Jinlong Jin,Zhenchao Lin,Yayan He,Jie Liang,Xiaojun Yan,Jianmei Huang
Colorful perovskite solar cells exhibit excellent potential for building-integrated photovoltaics (BIPVs), which increase the utilization of clean power. However, their efficiencies are lower than those of uncolored devices. Moreover, traditional mono-facial colored devices cannot satisfy diverse BIPV scenarios. Here a bifacial iridescent solar cell (BFI-SC) is developed, constructed by inverse opal (IO) perovskite photonic crystals and transparent front and rear electrodes. The developed BFI-SC exhibited bright vivid colors on both sides, which originate from the reflection at the photonic stop band of the IO perovskite photonic crystal. Moreover, this unique IO photonic crystal decreased the interfacial Fresnel reflection and generated a slow-photon effect, which increases the material light absorption and utilization to obtain high efficiency. Furthermore, the BFI-SC can harvest light from both sides, considerably enhancing the device efficiency. Thus, the BFI-SC achieved an impressive bifacial equivalent efficiency ( η eq ) of 18.00%, which is the highest value achieved for the reported multicolored (or iridescent) solar cell. A larger-scale BFI-SC module is successfully assembled, achieving a champion η eq of 12.77%. In addition, another perovskite material with an IO structure and wide-bandgap components exhibited vivid colors on both sides, indicating the universality of this coloring strategy and its independence of the perovskite components.
研究领域:
材料科学
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能源科学
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光学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Science Bulletin
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2019
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IF 6.277
Mengnan Yao,Tengfei Li,Yongbing Long,Ping Shen,Guoxin Wang,Chenglong Li,Junshi Liu,Wenbin Guo,Yufei Wang,Liang Shen,Xiaowei Zhan
Semitransparent polymer solar cells (ST-PSCs) have attracted worldwide attention owing to unique superiority in multiple utilization of incident light. However, the color of ST-PSCs is relatively uniform after fabrication, cannot be dynamically tuned in terms of application requirement. Herein, we demonstrate a high-efficiency ST-PSCs as a smart window , which can be reversibly switched on and off by a gasochromic tungsten trioxide/platinum (WO 3 /Pt) back reflector layer. The ST-PSCs can be switchable between colored and bleached states with fast response speed of sub-second during hydrogen exposure. Meanwhile, the color and transparency-switching enable light trapping enhancement in long wavelength range, which can systematically improve power conversion efficiency (PCE). As a result, the ST-PSCs contribute a PCE of 10.2% and 9.1% as well as corresponding average visible transmission (AVT) of 25.4% and 33.8% at colored state and bleached state, respectively, which can meet the visual aesthetics requirement well in building integrated photovoltaics . To the best of our knowledge, this is the first example for ST-PSCs that achieve both color-switching and light trapping. Furthermore, the smart windows facing to automobile sunroof are proposed to prove a practical application towards commercialization. We believe that smart windows with gasochromic functions can promise potential opportunities and directions for the future development of ST-PSCs.
研究领域:
光伏技术
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智能材料
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能量收集
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建筑一体化光伏
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光电设备
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）