Journal
ENERGY & ENVIRONMENTAL SCIENCE
Volume 4, Issue 4, Pages 1465-1470Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0ee00469c
Keywords
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Funding
- Ministry of Education, Science and Technology [2010-0029321]
- Korean Government (MEST) [NRF-2009-C1AAA001-2009-0094157, 2009-0083540]
- Ministry of Education, Science and Technology of Korea
- National Research Foundation of Korea [2009-0094157] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Tungsten trioxide (WO3) films with a mesoporous morphology, high transparency, and monoclinic phase crystallinity were prepared using polyethyleneglycol (PEG) as a surfactant and their photoelectrochemical properties were measured. By controlling the weight ratio of the tungsten precursor to PEG, a sphere-like WO3 nanoparticle film with high transparency can be synthesized. The photocurrent responses of the films under 1 sun solar light illumination were measured. Due to the high transparency of the WO3 photoanode, it is possible to fabricate a tandem cell composed of a WO3/Pt bipolar electrode connected with a dye-sensitized solar cell. Unassisted water splitting from the tandem cell was demonstrated but the maximum current density was exhibited at around +0.4 V (vs. Pt).
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