Enhanced Performance and Stability of Planar Perovskite Solar Cells by Interfacial Engineering using Fluorinated Aliphatic Amines
Source abstract
Abstract
Interface engineering is an effective way to improve perovskite solar cell (PSC) performance. In this work, we selected a series of fluorinated aliphatic amine hydroiodide to modify perovskite film in order to enhance its hydrophobicity and interface charge transport in PSC. In addition, fluorinated aliphatic amine hydroiodide treatment leads to large perovskite grains and decreases the number of grain boundaries, which benefits the durability and photoelectric transfer performance. Photoluminescence and electrochemical impedance spectroscopy results demonstrate that fluorinated aliphatic amine hydroiodide modification suppresses charge carrier recombination and accelerates electron injection from perovskite to PCBM. Thus, the power conversion efficiency (PCE) of PSC based on fluorinated aliphatic amine hydroiodide-modified perovskite film increases from 12.23% to 13.88%. The PCE of a modified PSC without any encapsulation maintains about 85% after exposure to 50% humidity for 10 days because of the enhanced hydrophobicity of modified perovskite films.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Perovskite Materials and Applications · Conducting polymers and applications · Quantum Dots Synthesis And Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Materials Science and Engineering, Institute of New Energy, College of Science, China University of Petroleum (East China), Qingdao 266580, China
Funding
Ministry of Education of the People's Republic of China · Natural Science Foundation of Shandong Province · National Natural Science Foundation of China · Taishan Scholar program of Shandong Province
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