Ligands Induced the Growth of Colloidal AgInS2 Nanoparticles with Tuned Structure and Photoluminescence Property

IF 4.3 2区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Pub Date : 2024-12-12 DOI:10.1021/acs.inorgchem.4c04037

Yongliang Zhang, Chenqian Hou, Ruixue Qin, Chao Wang, Shenda Huang, Cheng Chang, Jing Cai, Jia Li, Shuzhe Niu

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引用次数: 0

Abstract

Understanding the growth mechanism of AgInS₂ nanoparticles could benefit the designed growth of I–III–VI₂ nanomaterials and their applications in photonics, optoelectronics, etc. Herein, using tris(dibutyldithiocarbamate) indium(III) [In((C₄H₉)₂NCS₂)₃] ([InR₃]) and dibutyldithiocarbamate silver(I) [Ag((C₄H₉)₂NCS₂)] ([AgR]) precursors, AgInS₂-based nanoparticles with different structures have been synthesized in a controlled manner through a one-pot approach via different growth mechanisms in 1-dodecanethiol (DDT) and oleylamine (OLA), respectively. The DDT and OLA could participate in the decomposition of precursors; thus, the [AgR]/DDT, [InR₃]/DDT, [AgR]/OLA, and [InR₃]/OLA were used herein to describe the decomposition steps. In DDT, the decomposition activity of [AgR]/DDT was much higher than that of [InR₃]/DDT; thus, the sequential decomposition of [AgR]/DDT and [InR₃]/DDT led to the formation of the Ag₂S nanoparticles intermediate first, which then reacted with [InR₃]/DDT to form metastable o-AgInS₂ nanoparticles via the cation exchange and alloy process, and finally evolved into o-AgInS₂@InS_x core@shell nanoparticles, while in OLA, the decomposition activity of [AgR]/OLA was slightly higher than that of [InR₃]/OLA. Thus, the quasi-co-decomposition of [AgR]/OLA and [InR₃]/OLA led to the formation of Ag-rich Ag–In–S amorphous nanoparticles intermediate first and then quickly evolved into stable t-AgInS₂/InS_x nanoparticles. In addition, the photoluminescence quantum yield (PLQY) of t-AgInS₂/InS_x nanoparticles was higher than that of o-AgInS₂@InS_x nanoparticles.

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来源期刊

Inorganic Chemistry 化学-无机化学与核化学

CiteScore

7.60

自引率

13.00%

发文量

1960

审稿时长

1.9 months

期刊介绍： Inorganic Chemistry publishes fundamental studies in all phases of inorganic chemistry. Coverage includes experimental and theoretical reports on quantitative studies of structure and thermodynamics, kinetics, mechanisms of inorganic reactions, bioinorganic chemistry, and relevant aspects of organometallic chemistry, solid-state phenomena, and chemical bonding theory. Emphasis is placed on the synthesis, structure, thermodynamics, reactivity, spectroscopy, and bonding properties of significant new and known compounds.