Photochemical Shield Enabling Highly Efficient Perovskite Photovoltaics
Source abstract
Abstract
Abstract Oxygen is difficult to be physically removed. Oxygen will be excited by light to form free radicals which further attack the lattice of perovskite. The stabilization of α‐FAPbI3 against δ‐FAPbI3 is the key to optimize perovskite solar cells. Herein, the simple molecule, benzaldehyde (BAH) is adopted. The photochemical shield will be established in perovskite layer. Moreover, heterogeneous nucleation induced by BAH enhances the crystallization of α‐FAPbI3. Consequently, the stability of device is improved significantly. The target device maintains 95% of original power conversion efficiency after 1500 h under air conditions and light‐emitting diode light. The power conversion efficiency increases from 23.21% of pristine device to 24.82% of target device.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Perovskite Materials and Applications · Conducting polymers and applications · Chalcogenide Semiconductor Thin Films
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Institute of Functional Nano & Soft Materials (FUNSOM) Jiangsu Key Laboratory of Advanced Negative Carbon Technologies Jiangsu Key Laboratory for Carbon‐Based Functional Materials & Devices Soochow University Suzhou 215123 China
College of Energy Soochow Institute for Energy and Materials Innovations Soochow University Suzhou 215006 China
Funding
National Natural Science Foundation of China · Natural Science Foundation of Jiangsu Province · Higher Education Discipline Innovation Project
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