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Designing inorganically functionalized magic-size II-VI clusters and unraveling their surface states.

ABSTRACT: Surface engineering is a critical step in the functionalization of nanomaterials to improve their optical and electrochemical properties. However, this process remains a challenge in II-VI magic-size clusters (MSCs) due to their high sensitivity to the environment. Herein, we developed a general surface modification strategy to design all-inorganic MSCs by using certain metal salts (cation = Zn²⁺, In³⁺; Anion = Cl^-, NO₃ ^-, OTf^-) and stabilized (CdS)₃₄, (CdSe)₃₄ and (ZnSe)₃₄ MSCs in polar solvents. We further investigated the surface states of II-VI MSCs using electrochemiluminescence (ECL). The mechanism study revealed that the ECL emission was attributed to . Two ECL emissions at 556 nm and 530 nm demonstrated two surface passivation modes on (CdS)₃₄ MSCs, which can be tuned by the surface ligands. The achievement of surface engineering opens a new design space for functional MSC compounds.

SUBMITTER: Ge J

PROVIDER: S-EPMC9580488 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature

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Designing inorganically functionalized magic-size II-VI clusters and unraveling their surface states.

Ge Junjun J Liang Jing J Chen Xufeng X Deng Yalei Y Xiao Pengwei P Zhu Jun-Jie JJ Wang Yuanyuan Y

Chemical science 20220920 40

Surface engineering is a critical step in the functionalization of nanomaterials to improve their optical and electrochemical properties. However, this process remains a challenge in II-VI magic-size clusters (MSCs) due to their high sensitivity to the environment. Herein, we developed a general surface modification strategy to design all-inorganic MSCs by using certain metal salts (cation = Zn2+, In3+; Anion = Cl-, NO3 -, OTf-) a ...[more]

PMID: 36320910

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