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Photoelectrochemical cells by design: 3D nanoporous CdO-CdSe architectures on ITO

Title
Photoelectrochemical cells by design: 3D nanoporous CdO-CdSe architectures on ITO
Author
성명모
Keywords
CONVERSION; NANOWIRES; NANOTUBES; CADMIUM; ARRAYS; ZNS; NANOCRYSTALS; CRYSTALLINE; NANOCABLES; EXCHANGE
Issue Date
2013-07
Publisher
Royal SOC Chemistry
Citation
Journal of Materials Chemistry A, 2013, 1(35), P.10436-10441
Abstract
We report on the synthesis of CdO-CdSe nanoporous architectures from porous CdO architectures by a controlled solution anion exchange method. Monolithic CdCO3 micron sized crystals synthesized in the first step were decomposed by calcination to evolve CO2 to form porous CdO crystals, having a similar outer shape but with a tailored internal nanostructure. Controlled Se2- ion exchange with CdO crystals yielded CdO-CdSe architectures with tunable composition and optoelectronic properties. Pearson's acid-base concept is used as a guiding principle for controlling the morphology and composition of the formed architectures. The photoelectrochemical properties of the system comprising CdO-CdSe architectures were investigated at various stages of ion exchange intervals. CdO-CdSe architectures on indium tin oxide (ITO) is a promising photoelectrode with excellent photovoltaic properties exhibiting a short-circuit current density of 7.36 mA cm(-2) under 1 Sun illumination.
URI
http://pubs.rsc.org/en/Content/ArticleLanding/2013/TA/c3ta12276j#!divAbstract
ISSN
2050-7488
DOI
10.1039/c3ta12276j
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > CHEMISTRY(화학과) > Articles
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