Synthesis of transparent mesoporous tungsten trioxide films with enhanced photoelectrochemical response: Application to unassisted solar water splitting

Jung Kyu Kim; Kahee Shin; Sung M. Cho; Tae Woo Lee; Jong Hyeok Park

doi:10.1039/c0ee00469c

Synthesis of transparent mesoporous tungsten trioxide films with enhanced photoelectrochemical response: Application to unassisted solar water splitting

Jung Kyu Kim, Kahee Shin, Sung M. Cho, Tae Woo Lee, Jong Hyeok Park

Research output: Contribution to journal › Article › peer-review

148 Scopus citations

Abstract

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).

Original language	English
Pages (from-to)	1465-1470
Number of pages	6
Journal	Energy and Environmental Science
Volume	4
Issue number	4
DOIs	https://doi.org/10.1039/c0ee00469c
State	Published - Apr 2011
Externally published	Yes

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title = "Synthesis of transparent mesoporous tungsten trioxide films with enhanced photoelectrochemical response: Application to unassisted solar water splitting",

abstract = "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).",

author = "Kim, \{Jung Kyu\} and Kahee Shin and Cho, \{Sung M.\} and Lee, \{Tae Woo\} and Park, \{Jong Hyeok\}",

year = "2011",

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doi = "10.1039/c0ee00469c",

language = "English",

volume = "4",

pages = "1465--1470",

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publisher = "Royal Society of Chemistry",

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T1 - Synthesis of transparent mesoporous tungsten trioxide films with enhanced photoelectrochemical response

T2 - Application to unassisted solar water splitting

AU - Kim, Jung Kyu

AU - Shin, Kahee

AU - Cho, Sung M.

AU - Lee, Tae Woo

AU - Park, Jong Hyeok

PY - 2011/4

Y1 - 2011/4

N2 - 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).

AB - 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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DO - 10.1039/c0ee00469c

M3 - Article

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SN - 1754-5692

VL - 4

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JO - Energy and Environmental Science

JF - Energy and Environmental Science

IS - 4

ER -

Synthesis of transparent mesoporous tungsten trioxide films with enhanced photoelectrochemical response: Application to unassisted solar water splitting

Abstract

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