| Autor: |
Foo Shini, M. Thambidurai, Herlina Arianita Dewi, Nur Fadilah Jamaludin, Annalisa Bruno, Anil Kanwat, Nripan Mathews, Cuong Dang, Hung D. Nguyen |
| Přispěvatelé: |
School of Electrical and Electronic Engineering, School of Materials Science and Engineering, Energy Research Institute @ NTU (ERI@N), Centre for OptoElectronics and Biophotonics (COEB), The Photonics Institute |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
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| Popis: |
The interfacial passivation technique is an effective method to improve the stability and photovoltaic performance of perovskite solar cells. Here, we demonstrate the importance of passivating undercoordinated halide ions in minimizing carrier losses at the perovskite/spiro-OMeTAD interface. 4-Chlorobenzene sulfonyl chloride (CBSC) has been utilized as a Lewis acid passivation material. CBSC molecules act as electron acceptors, which bind to the negatively charged undercoordinated halide ions and Pb-I antisite defects (PbI3−). The champion CBSC-passivated perovskite device shows a high power conversion efficiency (PCE) of 20.02%, unlike the pristine device with an efficiency of 18.29%. Significant long term-stability in the CBSC passivated device is also observed, maintaining 93% of the initial PCE after 768 h stored in ambient conditions with 30% relative humidity. Energy Market Authority (EMA) Ministry of Education (MOE) National Research Foundation (NRF) Published version The research is supported by an AcRF Tier2 grant (MOET2EP50121-0012) from Singapore Ministry of Education, and EMA-EP004-EKJGC-0003 grant from the Energy Market Authority (EMA) and National Research Foundation (NRF) Singapore and NRF2018-ITC001-001. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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