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High performance carbon-based planar perovskite solar cells by hot-pressing approach

Authors :
Yang Yang
Ngoc Duy Pham
Disheng Yao
Vincent Tiing Tiong
Xiaoxiang Wang
Hongxia Wang
Wentao Sun
Minh Tam Hoang
Source :
Solar Energy Materials and Solar Cells. 210:110517
Publication Year :
2020
Publisher :
Elsevier BV, 2020.

Abstract

A simple yet effective method based on hot-pressing a free-standing carbon film onto adjacent hole transport layer (HTL) is used to fabricate carbon electrode for planar perovskite solar cells (C–PSCs). Due to the thermoplasticity of as-prepared carbon film, the conductivity of the carbon electrode is enhanced by over ten-fold and the adhesion to adjacent layer is dramatically strengthened via this hot-pressing process. By optimizing the pressing temperature, 15.3% of power conversion efficiency (PCE) is obtained for CuSCN based C–PSCs, which is 70% high than the device without heating at the same pressing pressure. The device demonstrates 93% performance retention after being stored in a humid environment (55–70%) without encapsulation over 80 days. This facile fabrication process of PSCs paves a way to facilitate commercialization of the new PV technology.

Details

ISSN :
09270248
Volume :
210
Database :
OpenAIRE
Journal :
Solar Energy Materials and Solar Cells
Accession number :
edsair.doi...........a577bb1976251ecc62eb9dc075a9eb88