Electroluminescent Solar Cells Based on CsPbI_3 Perovskite Quantum Dots

Wang Yao; Duan Chenghao; Zhang XuliangSun JianguoLing XufengShi JunweiHu LongZhou ZizhenWu XianxinHan WeiLiu XinfengCazorla ClaudioChu DeweiHuang ShujuanWu TomYuan JianyuMa Wanli

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Electroluminescent Solar Cells Based on CsPbI_3 Perovskite Quantum Dots

机译：Electroluminescent Solar Cells Based on CsPbI_3 Perovskite Quantum Dots

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摘要

All-inorganic CsPbX3 (X = Cl, Br, I, or mixed halides) perovskite quantum dots (QDs) exhibit tunable optical bandgaps and narrow emission peaks, which have received worldwide interest in the field of both photovoltaics (PVs) and light-emitting diodes (LEDs). Herein, it is reported a discovery that CsPbI3 perovskite QD solar cell can simultaneously deliver high PV performance and intense electroluminescence. In specific, the multifunctional CsPbI3 QD film is fabricated through a simple yet efficient solid-state-ligand exchange process using a tailored organic ligand triphenyl phosphite (TPPI). The function of QD surface manipulation using TPPI here is proven to be twofold, balancing the carrier transport and effectively passivating the QD surface to produce conductive and emissive QD film. The CsPbI3 perovskite QD solar cell delivers a champion efficiency of 15.21% with improved open circuit voltage and high fill factor. Concurrently functioning as a red LED, the CsPbI3 perovskite QD solar cell outputs electric power to light conversion efficiency approaching 4%, a record value for QD electroluminescent PVs. The results here indicate that these versatile perovskite QDs may be a promising candidate for fabricating multifunctional optoelectronic devices.

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来源
《Advanced functional materials》 |2022年第6期|2108615.1-2108615.9|共9页
作者
Wang Yao; Duan Chenghao; Zhang XuliangSun JianguoLing XufengShi JunweiHu LongZhou ZizhenWu XianxinHan WeiLiu XinfengCazorla ClaudioChu DeweiHuang ShujuanWu TomYuan JianyuMa Wanli;
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Baotou TeachersColl, Dept Chem, Baotou 014030, Peoples R China;

Chinese Acad Sci, Natl Ctr Nanosci & Technol, CAS Ctr Excellence Nanosci, CAS Key Lab Standardizat & Measurement Nanotechno, Beijing 100190, Peoples R China;

Univ Politecn Cataluna, Dept Fis, Campus Nord B4-B5, E-08034 Barcelona, SpainUniv New South Wales NSW, Sch Mat Sci & Engn, Sydney, NSW 2052, AustraliaMacquarie Univ, Sch Engn, Sydney, NSW 2109, AustraliaSoochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Jiangsu Key Lab Carbon Based Funct Mat & Devices, 199 Ren Ai Rd,Suzhou Ind Pk, Suzhou 215123, Jiangsu, Peoples R ChinaSouth China Univ Technol, Sch Environm & Energy, Guangzhou 510640, Peoples R China;

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正文语种英语
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CsPbI; (3); electroluminescent solar cells; perovskite quantum dots; surface passivation; triphenyl phosphite;

Electroluminescent Solar Cells Based on CsPbI_3 Perovskite Quantum Dots

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