journal article·2023-11-08

Synergistic Modification for Efficient Perovskite Solar Cells with Small Voltage Loss

You He, Hua Dong, Cong Chen, Feng Hao, Fei Long, Jilin Wang, Chuantian Zuo, Liming Ding

ACS Applied Materials & Interfaces· Volume 15· Issue 44
Publisher page

Abstract

The power conversion efficiency (PCE) of perovskite solar cells has improved quickly in the past few years, but the PCE is still much lower than the theoretical limit. The relatively high energy loss ( E loss ) is one of the critical factors limiting the PCE. To resolve the above issues, a synergistic modification strategy was used herein to minimize E loss . RbCl and potassium polyacrylate (K-PAM) were used to modify the SnO 2 layer. Additionally, Pb(Ac) 2 was introduced into PbI 2 to further improve the film quality. The synergistic modification strategy reduced the defects in SnO 2 and perovskite and improved the energy-level alignment, enabling significantly reduced E loss and enhanced photovoltaic performance. The best PCE of 24.07% was achieved, which was much higher than that of the control device (20.86%). The E loss was only 0.349 eV for the target device. Good stability was achieved for the cells made using modified SnO 2 and perovskite layers.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Perovskite Materials and Applications · Conducting polymers and applications · Organic Electronics and Photovoltaics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Guangxi Key Laboratory of Optical and Electronic Materials and Devices, Guilin University of Technology, Guilin 541004, China

Center for Excellence in Nanoscience (CAS), Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS), National Center for Nanoscience and Technology, Beijing 100190, China

School of Electronic Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China

School of Material Science and Engineering, Hebei University of Technology, Tianjin 300130, China

School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China

Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, Jianghan University, Wuhan 430056, China

Funding

National Key Research and Development Program of China · National Natural Science Foundation of China · Songshan Lake Materials Laboratory, Chinese Academy of Sciences

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