Upright-standing SnO2 nanowalls: Fabrication, dual-photosensitization and photovoltaic properties
- Title
- Upright-standing SnO2 nanowalls: Fabrication, dual-photosensitization and photovoltaic properties
- Author
- 한성환
- Keywords
- SENSITIZED SOLAR-CELLS; DYE; ELECTRODES; EFFICIENCY; FILMS; TIO2; CDS
- Issue Date
- 2012-06
- Publisher
- Elsevier Science B.V
- Citation
- Chemical Physics Letters, 2012, 542, P.66-69
- Abstract
- We report on fabrication of upright-standing SnO2 nanowalls aligned on FTO substrates by a facile wet chemical method at low temperature. These nanowalls are dual-photosensitized with CdS quantum dots and Z907 dye molecules in order to construct panchromatic dye-sensitized solar cells. We demonstrate that thin CdS quantum dot layer not only acts as a blocking layer preventing recombination of charge carriers, but also contributes as a light absorber. A 158% improvement in power conversion efficiency is observed, which is attributed to improved light absorption, reduced recombination and improved charge collection in presence of CdS quantum dot interlayer.
- URI
- https://www.sciencedirect.com/science/article/abs/pii/S0009261412006537http://hdl.handle.net/20.500.11754/67336
- ISSN
- 0009-2614
- DOI
- 10.1016/j.cplett.2012.05.061
- Appears in Collections:
- COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > CHEMISTRY(화학과) > Articles
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