Indoor light harvesting lead-free 2-aminothiazolium bismuth iodide solar cells
Indoor light harvesting lead-free 2-aminothiazolium bismuth iodide solar cells
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DOI：
10.1039/d1se02017j
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发表时间：
2022-05-26
影响因子：
5.6
通讯作者：
Ivaturi, Aruna
中科院分区：
文献类型：
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作者：
Arivazhagan, V;Gun, Fraser;Ivaturi, Aruna
近年来，铋基太阳能电池与无铅钙钛矿太阳能电池一样受到了人们的广泛关注。在本研究中，使用2-氨基噻唑碘（ATI）制备了高结晶性和环境稳定的无铅ATBiI(4)光活性薄膜，并对其进行了全面表征，以集成到具有n-i-p器件结构的平面太阳能电池中。ATBiI(4)太阳能电池在1个太阳下，开路电压为0.83 V时的功率转换效率为0.53%，与之前探索的三介观器件相比，开路电压提高了124%，功率转换效率提高了12.8%。此外，在这项研究中，首次探索了太阳能电池从室内白光发光二极管（LED）中收集能量，在500勒克斯下显示出81.75 μ W cm（-2）的功率输出。由于ATBiI(4)在紫外波长区域吸收最大，因此在9w UV LED （395-400 nm）下对太阳能电池进行了进一步测试，在150勒克斯下产生了8.07 μ W cm（-2）的输出功率。这项工作表明，2-氨基噻唑碘化铋太阳能电池是有前途的微瓦能源，可以找到潜在的应用，为智能电子设备供电。
Bismuth (Bi) based solar cells have recently attracted significant attention in line with lead-free perovskite solar cells development. In this study, 2-aminothiazolium iodide (ATI) is used to prepare highly crystalline and environmentally stable lead free ATBiI(4) photoactive thin films, which were comprehensively characterized for integration into planar solar cells with the n-i-p device architecture. The ATBiI(4) solar cells delivered a power conversion efficiency of 0.53% with open-circuit voltage of 0.83 V under 1 sun, a 12.8% increase in the power conversion efficiency arising mainly due to 124% increase in the open circuit voltage as compared to the triple mesoscopic devices explored previously. Furthermore, in this study the solar cells have been explored for harvesting energy from indoor white light emitting diodes (LED) for the first time revealing a power output of 81.75 mu W cm(-2) at 500 lux. As ATBiI(4) has its absorption maximum in the ultra-violet wavelength region, the solar cells have been further tested under 9 W UV LED (395-400 nm), which yielded a power output of 8.07 mu W cm(-2) at 150 lux. This work demonstrates that 2-aminothiazolium bismuth iodide solar cells are promising microwatt energy sources which can find potential application for powering smart electronics.