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用于矿有机双联太阳能电池的异构二被动化

Xin Jiang ^1,2, Shucheng Qin ^1,2, Lei Meng ^3,4

¹Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China.
²School of Chemical Science, University of Chinese Academy of Sciences, Beijing, China.
³Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China. menglei@iccas.ac.cn.
⁴School of Chemical Science, University of Chinese Academy of Sciences, Beijing, China. menglei@iccas.ac.cn.
⁵ROSI-Freigeist Juniorgroup, Institute of Physics and Astronomy, University of Potsdam, Potsdam, Germany.
⁶ROSI-Freigeist Juniorgroup, Institute of Physics and Astronomy, University of Potsdam, Potsdam, Germany. lang1@uni-potsdam.de.
⁷Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China. liyf@iccas.ac.cn.
⁸School of Chemical Science, University of Chinese Academy of Sciences, Beijing, China. liyf@iccas.ac.cn.
⁹Laboratory of Advanced Optoelectronic Materials, Suzhou Key Laboratory of Novel Semiconductor Materials and Devices, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, China. liyf@iccas.ac.cn.

⁰Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China.

Nature +

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2024年十月14日

在PubMed上查看摘要

概括

研究人员使用cis-cyclohexane 1,4-diammonium diiodide (cis-CyDAI2) 开发了一种新的被动化策略,以改善矿-有机双联太阳能电池 (TSC). 这种方法提高了电压,提高了电力转换效率 (PCE) 以获得稳定,高性能的太阳能.

科学领域

材料科学
可再生能源
太阳能发电

背景情况

矿太阳能电池 (PSC) 对于双联太阳能电池 (TSC) 超越单环节效率极限至关重要.
矿有机TSC中的宽带间隙 (WBG) 由于接口重组而面临电压损失,阻碍了性能.
为了提高WBGPSC的功率转换效率 (PCE),有效的表面被动化至关重要.

研究的目的

调查使用环1,4-二氧化物 (CyDAI2) 作为WBG矿太阳能电池 (pero-SCs) 的表面消极剂.
解决 WBG pero-SC 中的界面重组和电压损失.
提高单质矿-有机TSC的整体PCE.

主要方法

合成并利用环1,4-二二氧化物 (CyDAI2) 的 cis 和 trans 异构体进行表面被动化.
将 cis-CyDAI2 应用于 WBG SC (1.88 eV 带隙),以减少电压损失并增强开放电路电压 (Voc).
通过将cis-CyDAI2处理的WBG pero-SC与窄带间 (1.27 eV) 有机太阳能电池 (OSC) 结合而制造的单质矿有机TSC.

主要成果

这种 cis-CyDAI2 异构体表现出明显的表面相互作用行为,有效地减少了准费米级分开电路电压 (Voc) 的不匹配.
使用cis- CyDAI2的被动化增加了WBG超- SCs的Voc,达到1. 36V.
由此产生的单质矿有机TSC获得了25.7%的认证PCE (证明为26.4%).

结论

Cis-CyDAI2是一种高效的WBG pero-SC表面消极剂,可显著减轻电压损失.
开发的被动化策略使得高性能矿有机TSC具有更好的稳定性和PCE.
这项工作为推进基于矿的双重太阳能电池技术提供了一个有前途的方法.

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