Tertiary hierarchically structured TiO(2) for CdS quantum-dot-sensitized solar cells
SCIE
SCOPUS
- Title
- Tertiary hierarchically structured TiO(2) for CdS quantum-dot-sensitized solar cells
- Authors
- Yoon-Cheol Park; Eui-Hyun Kong; Yong-June Chang; Byung-Gon Kum; Jang, HM
- Date Issued
- 2011-08-30
- Publisher
- ELSEVIER
- Abstract
- A tertiary hierarchically structured mesoporous spherical TiO2 (with a diameter of 1190 +/- 60 nm) was synthesized by combining the sol-gel and the subsequent solvothermal treatment, and applied to CdS quantum-dot-sensitized solar cells (QDSSCs). This mesoporous spherical (MS) TiO2 offers a high surface area (76.02 m(2) g(-1)), a high internal reflectance in the visible region and a pore accessibility. A conversion efficiency of 1.9% was achieved by CdS QDSSCs composed of the MS TiO2 photoanode, which corresponds to similar to 58% improvement as compared with the values obtained from the conventional devices made with 20-nm-sized nanocrystalline TiO2 under AM 1.5 illumination of 100 mW cm(-2). Thus. the MS TiO2 can be a promising candidate for the photoanode material of QDSSCs. (C) 2011 Elsevier Ltd. All rights reserved.
- Keywords
- Quantum dot solar cells; Cadmium sulfide; Mesoporous titanium dioxide; Successive ionic layer adsorption and reaction; Tertiary hierarchically structure; EFFICIENCY; FILMS; CONVERSION; DEPOSITION; ENERGY; LIGHT; SIZE
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/17301
- DOI
- 10.1016/J.ELECTACTA.2011.05.113
- ISSN
- 0013-4686
- Article Type
- Article
- Citation
- ELECTROCHIMICA ACTA, vol. 56, no. 21, page. 7371 - 7376, 2011-08-30
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- There are no files associated with this item.
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