Dopant-Free Hole-Transporting Material with a C3h Symmetrical Truxene Core for Highly Efficient Perovskite Solar Cells
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- 作者：Chuyi Huang ; Weifei Fu ; Chang-Zhi Li ; Zhongqiang Zhang ; Weiming Qiu ; Minmin Shi ; Paul Heremans ; Alex K.-Y. Jen ; Hongzheng Chen
- 刊名：Journal of the American Chemical Society
- 出版年：2016
- 出版时间：March 2, 2016
- 年：2016
- 卷：138
- 期：8
- 页码：2528-2531
- 全文大小：333K
- ISSN：1520-5126
文摘
Herein we present a new structural design of hole-transporting material, Trux-OMeTAD, which consists of a C3h Truxene-core with arylamine terminals and hexyl side-chains. This planar, rigid, and fully conjugated molecule exhibits excellent hole mobility and desired surface energy to the perovskite uplayer. Perovskite solar cells fabricated using the p-i-n architecture with Trux-OMeTAD as the p-layer, show a high PCE of 18.6% with minimal hysteresis.