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Single-Crystalline Pyramidal TiCxParticles Grown by Biphase Diffusion Synthesis

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Title
Single-Crystalline Pyramidal TiCxParticles Grown by Biphase Diffusion Synthesis
Author(s)
Yang, Qingshan; Yang, Yajie; Gong, Qianyu; Li, Jinshu; Woo, Hwi Je; Niu, Jingjie; Kim, Minwoo; Lee, Sungjoo; Young Jae Song
Publication Date
2022-05
Journal
ACS Nano, v.16, no.5, pp.7713 - 7720
Publisher
American Chemical Society
Abstract
© 2022 American Chemical Society.In this study, we present single-crystalline pyramid-shaped (SP) TiCx particles synthesized on a stacked melt (copper)-solid (titanium) substrate using a biphase diffusion synthesis (BDS) method, in which different sizes ranging from nano- to micrometer scale were obtained within the copper melt with the {100} planes exposed to air. Direct observation and further plasma treatment of the pyramids at different self-assembly stages facilitated the investigation of their growth mode, especially in the horizontal plane. The dendritic growth mode along with the edge and corner-shared modes of the SP TiCx particles frozen on the copper surface was investigated. With SP TiCx particles stacked on top, MoS2-based phototransistors exhibited an up to 6-fold photocurrent increase under laser illumination at different wavelengths, which was attributed to the localized surface plasmonic resonance (LSPR) effect. The BDS method is applied for the synthesis of SP TiCx particles, with a detailed investigation of the relevant growth mode and related applications, such as decoration for high-performance photodevices.
URI
https://pr.ibs.re.kr/handle/8788114/11942
DOI
10.1021/acsnano.1c11524
ISSN
1936-0851
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > 1. Journal Papers (저널논문)
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