Synthesis CdSe(x)S(1-x) core/shell type quantum dots via one injection method.
The photoluminescence quantum yield (PL-QY) of ternary colloidal CdSe(x)S(1-x) quantum dots (QDs), which were prepared by a one-injection method, enhances with increasing S content. The possible enhancement mechanism was explored by structural analysis via X-ray absorption near edge structure (XANES) and extended X-ray absorption fine structure (EXAFS). Both found that the enhancement of PL-QY of ternary CdSe(x)S(1-x) QDs strongly correlated with self-formed core/shell conformation in the non-coordination solution.
Department of Chemical Engineering, National Taiwan University of Science and Technology, 43, Section 4, Keelung Road, Taipei, 106, Taiwan. sampras@mail.ntust.edu.tw
Liang-Yih
LY
Chen
Ching-Hsiang
CH
Chen
Chih-Hsiang
CH
Tseng
Feng-Lu
FL
Lai
Bing-Joe
BJ
Hwang