High-Performance Perovskite Quantum Dot Solar Cells Enabled by Incorporation with Dimensionally Engineered Organic Semiconductor,Nano-Micro Letters

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High-Performance Perovskite Quantum Dot Solar Cells Enabled by Incorporation with Dimensionally Engineered Organic Semiconductor
Nano-Micro Letters ( IF 31.6 ) Pub Date : 2022-10-17 , DOI: 10.1007/s40820-022-00946-x
Seyeong Lim ₁ , Dae Hwan Lee ₁ , Hyuntae Choi ₁ , Yelim Choi ₁ , Dong Geon Lee _{2,

3} , Sung Beom Cho _{3,

4} , Seonkyung Ko ₅ , Jongmin Choi ₅ , Younghoon Kim ₆ , Taiho Park ₁

Affiliation

We designed and developed a 3D star-shaped conjugated molecule (Star-TrCN) to incorporate organic semiconductor with CsPbI₃ perovskite quantum dots (PQDs).
The robust chemical bonding of Star-TrCN and PQDs is demonstrated by theoretical modeling and experimental validation, which significantly improved the cubic-phase stability of CsPbI₃-PQDs by passivating vacant sites and preventing moisture penetration.
The Star-PQD hybrid solar cells not only achieved remarkable device stability over 1000 h at 20–30% relative humidity, but also boosted power conversion efficiency up to 16.0% via cascade energy band structure.

中文翻译：

通过与尺寸工程有机半导体的结合实现高性能钙钛矿量子点太阳能电池

我们设计并开发了一种 3D 星形共轭分子 (Star-TrCN)，将有机半导体与 CsPbI ₃钙钛矿量子点 (PQD) 结合在一起。
理论建模和实验验证证明了 Star-TrCN 和 PQD 的牢固化学键合，这通过钝化空位和防止水分渗透显着提高了 CsPbI _{3 -PQD 的立方相稳定性。}
Star-PQD 混合太阳能电池不仅在 20-30% 相对湿度下实现了超过 1000 小时的卓越器件稳定性，而且还通过级联能带结构将功率转换效率提高至 16.0%。

更新日期：2022-10-18

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