Issue 10, 2019

Cyclopenta[hi]aceanthrylene-based dopant-free hole-transport material for organic–inorganic hybrid and all-inorganic perovskite solar cells

Abstract

Hole-transport materials (HTMs) play an important role in the most highly performing perovskite solar cells (PSCs). In this work, for the first time, an efficient cyclopenta[hi]aceanthrylene-based dopant-free D-A-D type hole transport material (HTM) YN3 is developed for application in organic–inorganic hybrid and all-inorganic perovskite solar cells (PSCs) with high performance. The (FAPbI3)0.85(MAPbBr3)0.15 and CsPbI2Br PSCs devices based on YN3 as a dopant-free HTM render very impressive PCEs of 18.84% and 12.05%, respectively. The obtained PCE values of YN3-based PSCs outperform most dopant-free HTMs based on small organic molecules reported so far. More encouragingly, the YN3-based PSCs without encapsulation display good long-term stability.

Graphical abstract: Cyclopenta[hi]aceanthrylene-based dopant-free hole-transport material for organic–inorganic hybrid and all-inorganic perovskite solar cells

Supplementary files

Article information

Article type
Communication
Submitted
16 Dec 2018
Accepted
11 Feb 2019
First published
11 Feb 2019

J. Mater. Chem. A, 2019,7, 5221-5226

Cyclopenta[hi]aceanthrylene-based dopant-free hole-transport material for organic–inorganic hybrid and all-inorganic perovskite solar cells

D. Zhang, P. Xu, T. Wu, Y. Ou, X. Yang, A. Sun, B. Cui, H. Sun and Y. Hua, J. Mater. Chem. A, 2019, 7, 5221 DOI: 10.1039/C8TA12139G

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