From Indium-Doped Ag2 S to AgInS2 Nanocrystals: Low-Temperature In Situ Conversion of Colloidal Ag2 S Nanoparticles and Their NIR Fluorescence

Autor: Jia Liu, Jiatao Zhang, Qiumei Di, Hongpan Rong, Wenxing Chen, Jiajia Liu, Bing Bai, Meng Xu, Huishan Shang, Muwei Ji
Rok vydání: 2018
Předmět:
Zdroj: Chemistry - A European Journal. 24:13676-13680
ISSN: 0947-6539
DOI: 10.1002/chem.201802973
Popis: Focusing on ternary I-III-VI2 colloidal nanocrystals (NCs) synthesized with precise control of the composition (from doping to ternary composition) and NIR fluorescence performance, monodisperse binary In3+ -doped Ag2 S NCs and ternary AgInS2 NCs have been achieved successfully by facile low-temperature in situ conversion of colloidal Ag2 S nanoparticles. In3+ ions were inserted into the crystal lattice of Ag2 S NCs at a relatively low temperature as dopant and ternary AgInS2 NCs were obtained at a higher temperature following a phase transition. These doped Ag2 S and AgInS2 NCs based on different indium precursor concentrations were explored with respect to the position and intensity of the near-infrared photoluminescent emission at different doping levels and crystal phase evolution.
Databáze: OpenAIRE
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