Tin‐Based Perovskite with Improved Coverage and Crystallinity through Tin‐Fluoride‐Assisted Heterogeneous Nucleation
Source abstract
Abstract
Abstract Tin fluoride (SnF2) is widely used as an effective additive for lead‐free tin‐based perovskite solar cells. However, the function of SnF2 and the mechanism in improving the film morphology are still not clear. In this work, it is clearly demonstrated that SnF2 can play a crucial role in the crystal nucleation process. Due to the limited solubility, SnF2 creates more nucleuses for the crystal growth and therefore enables more uniform thin film with high coverage. It is confirmed that this mechanism can be applied to the growth of both thin film and single crystal. As a result of tin‐fluoride‐assisted heterogeneous nucleation, an MASnIBr2‐based perovskite solar cell with a high and stable power conversion efficiency of 3.70% is demonstrated.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Perovskite Materials and Applications · Chalcogenide Semiconductor Thin Films · Quantum Dots Synthesis And Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
National Laboratory of Solid State Microstructures College of Engineering and Applied Sciences, and Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing 210093 China
National Laboratory of Solid State Microstructures and Eco‐Materials and Renewable Energy Research Center (ERERC) at Department of Physics Nanjing University Nanjing 210093 China
Funding
National Natural Science Foundation of China · Natural Science Foundation of Jiangsu Province
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