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나노물질 및 화학반응 연구단
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Air-stable CuInSe2 nanoparticles formed through partial cation exchange in methanol at room temperature

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Title
Air-stable CuInSe2 nanoparticles formed through partial cation exchange in methanol at room temperature
Author(s)
Ji Yong Choi; Seon Joo Lee; Won Seok Seo; Hyunjoon Song
Publication Date
2016-08
Journal
CRYSTENGCOMM, v.18, no.32, pp.6069 - 6075
Publisher
ROYAL SOC CHEMISTRY
Abstract
Spherical CuInSe2 nanoparticles were synthesized through a partial cation exchange reaction of Cu2-xSe nanoparticles in methanol at room temperature. An additive, tributylphosphine, rapidly reduced copper and selenium ions, and facilitated the dissolution of Cu ions. Poly(vinylpyrrolidone) retained the spherical morphology of the nanoparticles by anchoring on the surface. The fraction of In3+ ions increased as the reaction progressed, which led to a decrease of the optical bandgap from 2.06 eV of Cu2-xSe to 1.03 eV of CuInSe2. The resulting CuInSe2 particles exhibited high air and thermal stability, and can be applied as colloidal inks for thin film fabrication in optoelectronic devices. © 2016 The Royal Society of Chemistry
URI
https://pr.ibs.re.kr/handle/8788114/3139
ISSN
1466-8033
Appears in Collections:
Center for Nanomaterials and Chemical Reactions(나노물질 및 화학반응 연구단) > Journal Papers (저널논문)
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CrystEngComm, 2016, 18, 6069–6075.pdfDownload

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