Synthesis CdSe(x)S(1-x) core/shell type quantum dots via one injection method |
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| Authors: | Chen Liang-Yih Chen Ching-Hsiang Tseng Chih-Hsiang Lai Feng-Lu Hwang Bing-Joe |
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| Affiliation: | Department of Chemical Engineering, National Taiwan University of Science and Technology, 43, Section 4, Keelung Road, Taipei, 106, Taiwan. sampras@mail.ntust.edu.tw |
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| Abstract: | 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. |
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