MACl-Induced Controlled Crystallization in Sequentially Deposited Perovskites for High-Efficiency and Stable Perovskite Solar Cells
Source abstract
Abstract
Perovskite solar cells are attracting more and more attention due to their higher absorption and low cost. However, fabricating the perovskite film with high crystallinity and ideal morphology, which presents large-size and uniform particles with fewer grain boundaries, still needs further improvement. Herein, we introduce MAPbCl3 crystals into the PbI2 film in the sequential deposition process, which obtained the controlled crystallization in perovskite films. The perovskite films induced by MAPbCl3 have stronger crystallinity, fewer defect states, and larger grain size, reducing carrier recombination and improving carrier transfer. The optimized perovskite solar cell (PSC) has achieved a power conversion efficiency of 20.97%. Furthermore, the stability of PSCs has also been enhanced due to the reduced grain boundaries impeding moisture diffusion. This strategy can be applied in other solution-based fabrication processes to improve the photovoltaic performance of PSCs.
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Research context
OpenAlex topics: Perovskite Materials and Applications · Quantum Dots Synthesis And Properties · Chalcogenide Semiconductor Thin Films
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Advanced Interdisciplinary Studies, Ningxia University, Zhongwei 755000, China
Department of Basic Courses, Officers College of PAP, Chengdu 610213, China
Puyang Institute of Technology, Henan University, Puyang 457000, China
School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 610213, China
Center of Condensed Matter and Material Physics, School of Physics, Beihang University, Beijing 100191, China
Funding
Ningxia Important Research and Development Project (Talent Introduction Project) · Fundamental Research Program of Shanxi Provinces
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