Issue 35, 2022

Efficient and scalable perovskite solar cells achieved by buried interface engineering

Abstract

A high quality buried interface is crucial for highly efficient, stable, and scalable perovskite solar cells, especially for p-i-n structure devices. Here, we report a buried interface engineering strategy by doping tetrachloroaluminate anions into buried organic hole transporting layers, which improves the interfacial wettability of perovskite precursor solution, accelerates hole extraction and transport, and minimizes non-radiative recombination at hole-selective interfaces. The present strategy enables the achievement of p-i-n perovskite solar cells with efficiencies of 23.22% and 21.31% for devices over an area of 0.08 and 1.0 square centimeters, respectively. The target device maintained 93% of initial efficiency under standard illumination at 85 °C for 1500 hours.

Graphical abstract: Efficient and scalable perovskite solar cells achieved by buried interface engineering

Supplementary files

Article information

Article type
Communication
Submitted
01 Mezh. 2022
Accepted
22 Eost 2022
First published
25 Eost 2022

J. Mater. Chem. A, 2022,10, 18014-18020

Efficient and scalable perovskite solar cells achieved by buried interface engineering

T. Wang, L. Qiao, T. Ye, W. Kong, F. Zeng, Y. Zhang, R. Sun, L. Zhang, H. Chen, R. Zheng and X. Yang, J. Mater. Chem. A, 2022, 10, 18014 DOI: 10.1039/D2TA04381E

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