Jeong, Seonghyun Yoon, Hee Chang Han, Noh Soo Oh, Ji Hye Park, Seung Min Min, Byoung Koun Do, Young Rag Song, Jae Kyu 2024-01-20T02:03:42Z 2024-01-20T02:03:42Z 2021-09-01 2017-02-09 1932-7447 https://pubs.kist.re.kr/handle/201004/123067 The size-dependent band-gap energies of AgIn5S8 nanoparticles were directly measured for the first time using absorption and photoluminescence spectroscopies, which enabled an explanation of the evolution of the band-gap energy with the quantum-confinement effect in AgIn5S8 nanoparticles. The band-gap transition in steady-state and time-resolved photoluminescence spectra indicated that the stable structure of the AgIn5S8 nanoparticles was the cubic phase. The electronic band structures of the Ag-In-S nanoparticles were mainly related to the crystal structures, although the stoichiometry affected the band energies to some extent. Zn doping led to the formation of a ZnS-AgIn5S8 solid solution, as supported by the significant changes in the electronic band structures of the AgIn5S8 nanoparticles. Controlling the size and stoichiometry allowed the emission of the Ag-In-S nanoparticles to be tuned in the entire visible regime. English American Chemical Society SOLID-SOLUTION NANOCRYSTALS AGINS2 QUANTUM DOTS FACILE SYNTHESIS THIN-FILMS PHOTOLUMINESCENCE LUMINESCENT ENHANCEMENT ORIGIN CDSE RED Band-Gap States of AgIn5S8 and ZnS-AgIn5S8 Nanoparticles Article 10.1021/acs.jpcc.7b00043 1 The Journal of Physical Chemistry C, v.121, no.5, pp.3149 - 3155 The Journal of Physical Chemistry C 121 5 3149 3155 scie scopus 000394080900073 2-s2.0-85019691492 Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Chemistry Science & Technology - Other Topics Materials Science Article SOLID-SOLUTION NANOCRYSTALS AGINS2 QUANTUM DOTS FACILE SYNTHESIS THIN-FILMS PHOTOLUMINESCENCE LUMINESCENT ENHANCEMENT ORIGIN CDSE RED bandgap nanoparticle