DataVXACS Applied Materials & InterfacesPaper
journal article·2022-07-27

Modifying SnO2 with Polyacrylamide to Enhance the Performance of Perovskite Solar Cells

Haiyue Dong, Jilin Wang, Xingyu Li, Weiting Liu, Tian Xia, Disheng Yao, Lixiu Zhang, Chuantian Zuo, Liming Ding, Fei Long

ACS Applied Materials & Interfaces· Volume 14· Issue 29
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Source abstract

Abstract

Modification of the charge transport layers is an effective way to improve charge transport and performance of perovskite solar cells (PSCs). The ions in the ionic compounds used for the modification of SnO2 may migrate into the perovskite layer, which harms the stability of PSCs. In this work, a low-cost, water-soluble nonionic polymer polyacrylamide (PAM) is used to modify SnO2. The addition of PAM improves the uniformity, wettability, and electron mobility of the SnO2 film. Through the modification of SnO2, the defects of perovskite films are reduced and the grain size is increased. Furthermore, the energy-level alignment at the SnO2/perovskite interface is improved, which is beneficial to the transfer of electrons from perovskite to SnO2. Finally, the power conversion efficiency (PCE) of PSCs formed from modified SnO2 is enhanced to 22.59%. More importantly, the unencapsulated devices with modified SnO2 retain 90% of the initial value after storage for more than 1000 h under a relative humidity of 50%. These results indicate that modifying SnO2 using PAM is a promising strategy to improve the performance of PSCs.
Source: openalex_inverted_index · Quality: baseline

Research context

PolymersElectronic materials

OpenAlex topics: Perovskite Materials and Applications · Conducting polymers and applications · Advanced battery technologies research

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

Affiliations

Guangxi Key Laboratory of Optical and Electronic Material and Devices, School of Materials Science and Engineering, Guilin University of Technology, 12 Jiangan Road, Guilin, Guangxi 541004, China

Collaborative Innovation Center for Exploration of Nonferrous Metal Deposits and Efficient Utilization of Resources, Guilin University of Technology, 12 Jiangan Road, Guilin, Guangxi 541004, China

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

Funding

Ministry of Science and Technology of the People's Republic of China · National Natural Science Foundation of China · Guangxi Distinguished Experts Special Fund · Guangxi Research Foundation for Science and Technology Base and Talent Special · Songshan Lake Materials Laboratory

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