Multifunctional self-assembled monolayer, perovskite solar cell and preparation method thereof
By using multifunctional self-assembled single-molecule compounds in NiOx-based perovskite solar cells, anchoring groups form covalent bonds with the oxide layer and perovskite surface, reducing interface defects and resistance, solving the problem of NiOx thin film-perovskite interface recombination, and improving photoelectric conversion efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINT NEW ENERGY TECH CO LTD
- Filing Date
- 2026-03-18
- Publication Date
- 2026-06-16
AI Technical Summary
In the prior art, the photovoltaic performance of NiOx-based perovskite solar cells is limited by defects at the interface between the NiOx thin film and the perovskite and nonradiative recombination caused by deep potential wells. Furthermore, the modification of the interface layer affects the performance of the perovskite light-absorbing layer, making it difficult to select suitable materials to improve compatibility.
A multifunctional self-assembled monomolecule compound is used to form covalent bonds on the oxide layer and perovskite surface through anchoring groups, reducing interface defects. Furthermore, benzothiadiazole is used to enhance π-π conjugation and promote lateral charge transport, forming a dense monolayer to reduce interface resistance.
It effectively reduces interface defects and resistance, improves the photoelectric conversion efficiency of perovskite solar cells, and enhances their performance.
Smart Images
Figure CN122213086A_ABST