BROWSE

Related Scientist

nanomat's photo.

nanomat
나노입자연구단
more info

ITEM VIEW & DOWNLOAD

Moisture-Induced Degradation of Quantum-Sized Semiconductor Nanocrystals through Amorphous Intermediates

Cited 0 time in webofscience Cited 0 time in scopus
62 Viewed 0 Downloaded
Title
Moisture-Induced Degradation of Quantum-Sized Semiconductor Nanocrystals through Amorphous Intermediates
Author(s)
Ma, Hyeonjong; Sungsu Kang; Lee, Seunghan; Park, Gisang; Yuna Bae; Park, Gyuri; Jihoon Kim; Li, Shi; Hayeon Baek; Kim, Hyeongseung; Yu, Jong-Sung; Lee, Hoonkyung; Jungwon Park; Yang, Jiwoong
Publication Date
2023-07
Journal
ACS NANO, v.17, no.14, pp.13734 - 13745
Publisher
AMER CHEMICAL SOC
Abstract
Elucidating the water-induced degradation mechanism ofquantum-sizedsemiconductor nanocrystals is an important prerequisite for theirpractical application because they are vulnerable to moisture comparedto their bulk counterparts. In-situ liquid-phasetransmission electron microscopy is a desired method for studyingnanocrystal degradation, and it has recently gained technical advancement.Herein, the moisture-induced degradation of semiconductor nanocrystalsis investigated using graphene double-liquid-layer cells that cancontrol the initiation of reactions. Crystalline and noncrystallinedomains of quantum-sized CdS nanorods are clearly distinguished duringtheir decomposition with atomic-scale imaging capability of the developedliquid cells. The results reveal that the decomposition process ismediated by the involvement of the amorphous-phase formation, whichis different from conventional nanocrystal etching. The reaction canproceed without the electron beam, suggesting that the amorphous-phase-mediateddecomposition is induced by water. Our study discloses unexploredaspects of moisture-induced deformation pathways of semiconductornanocrystals, involving amorphous intermediates.
URI
https://pr.ibs.re.kr/handle/8788114/14402
DOI
10.1021/acsnano.3c03103
ISSN
1936-0851
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
There are no files associated with this item.

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse