Enhancing the Photovoltaic Performance of Perovskite Solar Cells with a Down-Conversion Eu-Complex
| Autor: | Songyuan Dai, Jia-Wei Zheng, Tasawar Hayat, Ling Jiang, Linhua Hu, Zhao-Qian Li, Ahmed Alsaedi, Wangchao Chen, Li-E Mo, Liangzheng Zhu, Changneng Zhang |
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| Rok vydání: | 2017 |
| Předmět: |
Photocurrent
Materials science business.industry Energy conversion efficiency Photovoltaic system 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology medicine.disease_cause 01 natural sciences 0104 chemical sciences medicine Optoelectronics General Materials Science 0210 nano-technology business Luminescence UV degradation Ultraviolet Visible spectrum Perovskite (structure) |
| Zdroj: | ACS Applied Materials & Interfaces. 9:26958-26964 |
| ISSN: | 1944-8252 1944-8244 |
| DOI: | 10.1021/acsami.7b10101 |
| Popis: | Organometal halide perovskite solar cells (PSCs) have shown high photovoltaic performance but poor utilization of ultraviolet (UV) irradiation. Lanthanide complexes have a wide absorption range in the UV region and they can down-convert the absorbed UV light into visible light, which provides a possibility for PSCs to utilize UV light for higher photocurrent, efficiency, and stability. In this study, we use a transparent luminescent down-converting layer (LDL) of Eu–4,7-diphenyl-1,10-phenanthroline (Eu-complex) to improve the light utilization efficiency of PSCs. Compared with the uncoated PSC, the PSC coated with Eu-complex LDL on the reverse of the fluorine-doped tin oxide glass displayed an enhancement of 11.8% in short-circuit current density (Jsc) and 15.3% in efficiency due to the Eu-complex LDL re-emitting UV light (300–380 nm) in the visible range. It is indicated that the Eu-complex LDL plays the role of enhancing the power conversion efficiency as well as reducing UV degradation for PSCs. |
| Databáze: | OpenAIRE |
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