https://scholars.lib.ntu.edu.tw/handle/123456789/547549
標題: | Highly efficient all-inorganic perovskite solar cells with suppressed non-radiative recombination by a Lewis base | 作者: | Wang, J. et al. CHU-CHEN CHUEH |
公開日期: | 2020 | 卷: | 11 | 期: | 1 | 來源出版物: | Nature Communications | 摘要: | All-inorganic perovskite solar cells (PVSCs) have drawn increasing attention because of their outstanding thermal stability. However, their performance is still inferior than the typical organic-inorganic counterparts, especially for the devices with p-i-n configuration. Herein, we successfully employ a Lewis base small molecule to passivate the inorganic perovskite film, and its derived PVSCs achieved a champion efficiency of 16.1% and a certificated efficiency of 15.6% with improved photostability, representing the most efficient inverted all-inorganic PVSCs to date. Our studies reveal that the nitrile (C-N) groups on the small molecule effectively reduce the trap density of the perovskite film and thus significantly suppresses the non-radiative recombination in the derived PVSC by passivating the Pb-exposed surface, resulting in an improved open-circuit voltage from 1.10 V to 1.16 V after passivation. This work provides an insight in the design of functional interlayers for improving efficiencies and stability of all-inorganic PVSCs. © 2020, The Author(s). |
URI: | https://www.scopus.com/inward/record.url?eid=2-s2.0-85077717875&partnerID=40&md5=47918b893817a262eddc3cdb46e600b6 https://scholars.lib.ntu.edu.tw/handle/123456789/547549 |
ISSN: | Wang, J.;Zhang, J.;Zhou, Y.;Liu, H.;Xue, Q.;Li, X.;Chueh, C.-C.;Yip, H.-L.;Zhu, Z.;Jen, A.K.Y. | DOI: | 10.1038/s41467-019-13909-5 | SDG/關鍵字: | cesium; Lewis base; nitrile; perovskite; polymer; silicon; zinc oxide nanoparticle; design; energy efficiency; film; fuel cell; inorganic compound; lead; performance assessment; perovskite; recombination; Article; controlled study; fused deposition modeling; nonhuman; particle size; scanning electron microscopy; simulation; surface property; theoretical model; X ray photoemission spectroscopy |
顯示於: | 化學工程學系 |
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