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Semiconducting Synthetic Melanin-Based Organic/Inorganic Hybrid Photoanodes for Solar Water Oxidation

Author(s)
Lee, CheolminJeon, DasomBae, SanghyunKim, HyunwooHan, YujinLee, Yang WooRyu, Jungki
Issued Date
2018-10
DOI
10.1002/cssc.201801135
URI
https://scholarworks.unist.ac.kr/handle/201301/24323
Fulltext
https://onlinelibrary.wiley.com/doi/abs/10.1002/cssc.201801135
Citation
CHEMSUSCHEM, v.11, no.19, pp.3534 - 3541
Abstract
We report the development of semiconducting melanin-based organic/inorganic hybrid photoanodes for solar water oxidation. Synthetic melanin thin-film incorporating polyoxometalate (POM) water oxidation catalysts (WOCs) are readily deposited on the surface of various n-type inorganic semiconductors (e.g., Fe2O3, BiVO4, and TiO2) by electropolymerization. The deposition of melanin and POM hybrid (MP) thin-film results in the remarkably improved performance of an underlying semiconductor photoanode for solar water oxidation with a significantly increased photocurrent density and decreased onset potential for water oxidation through the formation of a melanin-based p-n heterojunction structure. We believe that this study can provide insights into the design and fabrication of various melanin-based optoelectronic devices by utilizing its unique physicochemical properties.
Publisher
WILEY-V C H VERLAG GMBH
ISSN
1864-5631
Keyword (Author)
heterojunctionhybrid materialsmelaninphotocatalysiswater splitting
Keyword
DOPAMINEFILMSPOLYOXOMETALATELAYERPHOTOSYNTHESISENHANCEMENTPERFORMANCEEUMELANINSCOMPOSITEHEMATITE

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