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나노입자 연구단
나노입자 연구단
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Controlled synthesis of SnSxSe2−x nanoplate alloys via synergetic control of reactant activity and surface defect passivation control with surfactant and co-surfactant mixture

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Title
Controlled synthesis of SnSxSe2−x nanoplate alloys via synergetic control of reactant activity and surface defect passivation control with surfactant and co-surfactant mixture
Author(s)
Jong Kook Won; Chahwan Hwang; Kyunghan Ahn; Seong-Young Choi; Yongkyu Lee; Jaehyun Kim; Yangjin Lee; Sung Kyu Park; In Chung; Choongik Kim; Kwanpyo Kim; Sang Hyun Ahn; Min Hyung Lee; Myung-Gil Kim
Publication Date
2019-10
Journal
JOURNAL OF SOLID STATE CHEMISTRY, v.278, no., pp.UNSP - 120887
Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
Abstract
© 2019 Elsevier Inc.Two-dimensional (2D) metal dichalcogenide nanomaterials have been receiving enormous research interest for electronic, optoelectronic, and catalytic applications. However, the facile tunability of alloying and doping, as well as the successful formation of ideal defect-free nanoplate morphology have been hardly achieved for 2D nanomaterials. Herein, we successfully synthesized a series of 2D solid-solution SnSxSe2−x particles of 0.20–2.00 μm width and 30–68 nm thickness with morphological defect-free nanoplate via a solvothermal reaction. With controlled reactivities of elemental chalcogen precursors, a co-surfactant hexylamine together with a structure-directing agent polyvinylpyrrolidone was found to be essential for realizing ideal defect-free nanoplate morphology of SnSxSe2−x particles without either cabbage-like or twinned structure. The successful synthesis of morphologically defect-free SnSxSe2−x nanoplates with rationally controlled energy band gaps ranging from 1.36 eV for SnSe2 to 1.96 eV for SnS2 could provide promising materials for electronics, optoelectronics, and electrocatalytic applications
URI
https://pr.ibs.re.kr/handle/8788114/6863
ISSN
0022-4596
Appears in Collections:
Center for Nanomedicine (나노의학 연구단) > Journal Papers
Center for Nanoparticle Research(나노입자 연구단) > Journal Papers (저널논문)
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