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

Title
Photoelectrochemical cells by design: 3D nanoporous CdO-CdSe architectures on ITO
Authors
Dipak V. ShindeIseul Lim이중기Myung Mo SungRajaram S. ManeSung-Hwan Han
Keywords
Photoelectrochemical; 3D design; nano-porous; CdO-CdSe
Issue Date
2013-09
Publisher
Journal of materials chemistry. A, Materials for energy and sustainability
Citation
VOL 1, NO 35, 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.kist.re.kr/handle/201004/45840
ISSN
20507488
Appears in Collections:
KIST Publication > Article
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