화학공학소재연구정보센터
Journal of the American Ceramic Society, Vol.102, No.8, 4555-4561, 2019
Continuous-wave laser irradiation to form Cd1-xZnxSe shell on CdSe QDs in silicate glasses
CdSe QDs with Cd1-xZnxSe shell structures were precipitated inside silicate glasses by continuous-wave laser irradiation (lambda = 532 nm) without any heat-treatment process. Emission from the surface defects (lambda approximate to 620 nm) was quenched significantly and the lifetimes of the band-edge emission was increased. During the laser irradiation, Zn ions were gradually incorporated into the outer region of CdSe QDs to form Cd1-xZnxSe (0.76 <= x <= 0.8) alloy shells.