镨掺杂电子传输层高效率钙钛矿太阳能电池
首发时间:2018-11-01
摘要:近来钙钛矿太阳能电池(PSC)发展迅速,得到了众多科研工作人员的广泛关注,高效率钙钛矿太阳能电池被认为是晶体硅太阳能电池最有可能的替代品。通过减少过量的电荷积累并保证在致密层与钙钛矿界面处的有效电子注入,拥有优异电子迁移率和导电性的致密层材料对于保证钙钛矿太阳能电池的高效率是十分必要的。在本项研究中,我们发现镨掺杂的致密二氧化钛可以改善电子传输层(ETL)的性质和导电性能。与未掺杂的致密二氧化钛基钙钛矿太阳能电池相比,镨掺杂致密二氧化钛薄膜基钙钛矿太阳能电池的功率转换效率(PCE)从14.64%提高到15.17%。高效钙钛矿太阳能电池的制备为太阳能电池的商业化发展提供了基础。
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Enhanced electronic transport in Pr3+-doped TiO2 for high efficiency perovskite solar cells
Abstract:Recently, perovskite solar cells (PSCs) have developed rapidly and have received extensive attention from many scientific researchers. High-efficiency perovskite solar cells are considered to be the most likely substitutes for crystalline silicon solar cells. By reducing excess charge buildup and ensuring efficient electron injection at the interface between the dense layer and the perovskite, compact layer materials with excellent electron mobility and conductivity are necessary to ensure high efficiency of the perovskite solar cell. In this study, we have found that Pr-doped compact titanium dioxide improves the properties and electrical conductivity of the electron transport layer (ETL). Compared with the undoped compact titania-based perovskite solar cell, the power conversion efficiency (PCE) of the Pr-doped compact titanium dioxide film-based perovskite solar cell increased from 14.64% to 15.17%. The preparation of high-efficiency perovskite solar cells provides the basis for the commercial development of solar cells.
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