One-Dimensional Core/Shell Structured TiO2/ZnO Heterojunction for Improved Photoelectrochemical Performance
- Title
- One-Dimensional Core/Shell Structured TiO2/ZnO Heterojunction for Improved Photoelectrochemical Performance
- Other Titles
- Shell Structured TiO2
- Author
- 방진호
- Keywords
- TiO2/ZnO heterojunction; Photoelectrochemical water splitting; Atomic layer deposition; Semiconductor-sensitized solar cell
- Issue Date
- 2012-07
- Publisher
- Korean Chemical SOC
- Citation
- Bulletin of the Korean Chemical Society, 2012, 33(7), P.2200-2206
- Abstract
- One-dimensional TiO2 array grown on optically transparent electrode holds a promise as a photoelectrode for photoelectrochemical water splitting; however, its crystal structure is rutile, imposing constraints on the potent use of this nanostructure. To address this issue, a heterojunction with type-II band alignment was fabricated using atomic layer deposition (ALD) technique. One-dimensional core/shell structured TiO2/ZnO heterojunction was superior to TiO2 in the photoelectrochemical water splitting because of better charge separation and more favorable Fermi level. The heterojunction also possesses better light scattering property, which turned out to be beneficial even for improving the photoelectrochemical performance of semiconductor-sensitized solar cell.
- URI
- http://koreascience.or.kr/article/ArticleFullRecord.jsp?cn=JCGMCS_2012_v33n7_2200
- ISSN
- 0253-2964
- DOI
- 10.5012/bkcs.2012.33.7.2200
- Appears in Collections:
- GRADUATE SCHOOL[S](대학원) > BIONANOTECHNOLOGY(바이오나노학과) > Articles
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