Enhanced photovoltaic performance of Sb2S3 -sensitized solar cell using a novel Ni-4 mercaptophenol hybrid interfacial layer
- Title
- Enhanced photovoltaic performance of Sb2S3 -sensitized solar cell using a novel Ni-4 mercaptophenol hybrid interfacial layer
- Author
- 성명모
- Keywords
- Solar cells; Mesoporous TiO2; Sb2S3; Interface engineering; Ni-4 mercaptophenol; Atomic layer deposition
- Issue Date
- 2019-05
- Publisher
- ELSEVIER SCIENCE BV
- Citation
- APPLIED SURFACE SCIENCE, v. 476, Page. 897-904
- Abstract
- In this work, we introduced a novel Ni-4 mercaptophenol (Ni4MP) as an interfacial layer in Sb2S3 -sensitized mesoporous TiO2 solar cells. Ni4MP thin films with controllable thickness were prepared by an integrated approach via atomic/molecular layer deposition techniques and were systematically characterized. Introduction of the Ni4MP interlayer significantly enhanced the photovoltaic performance and the interfacial charge transfer kinetics of Sb2S3-sensitized solar cells. The augmentation of open circuit voltage and short circuit density due to the insertion of a Ni4MP interlayer enhanced the power conversion efficiency of the solar cells from 2.07% to 2.79%, corresponding to a 35% increase in efficiency. This improvement in device performance was discussed based on the energy band diagram. We found that the Ni4MP interlayer can effectively extract the photo-generated holes from the Sb2S3 sensitizer due to the excellent band matching and hole scavenging characteristics, thus enhancing the charge transport and suppressing the recombination.
- URI
- https://www.sciencedirect.com/science/article/pii/S0169433219301230?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/111515
- ISSN
- 0169-4332; 1873-5584
- DOI
- 10.1016/j.apsusc.2019.01.130
- Appears in Collections:
- COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > CHEMISTRY(화학과) > Articles
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