| Study on Interaction between Chitosan and CdS Quantum Dots via Photoluminescence Spectra |
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| 引用本文： | ZhanLI YuMinDU YanWEN. Study on Interaction between Chitosan and CdS Quantum Dots via Photoluminescence Spectra[J]. 中国化学快报, 2004, 15(4): 463-466 |
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| 作者姓名： | ZhanLI YuMinDU YanWEN |
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| 作者单位： | DepartmentofEnvironmentalScience,WuhanUniversity,Wuhan430072 |
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| 摘 要： | The interaction between CdS quantum dots and amino polysaccharide chitosan in aqueous solution was studied via photoluminescence (PL) spectra.The surface binding of chitosan with different molecular weight (MW) quenched the luminescence of QDs due to the elimination of radioactive anion vacancy centers.This process fits well with the Perrin model;lower MW chitosan exhibits higher quenching efficiency due to better availability to the surface.
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| 关 键 词： | 硫化镉 量子点 壳聚糖 交互作用 光致发光 |
Study on Interaction Between Chitosan and CdS Quantum Dots via Photoluminescence Spectra |
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| Zhan LI,Yu Min DU,Yan WEN. Study on Interaction Between Chitosan and CdS Quantum Dots via Photoluminescence Spectra[J]. Chinese Chemical Letters, 2004, 15(4): 463-466 |
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| Authors: | Zhan LI Yu Min DU Yan WEN |
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| Affiliation: | Zhan LI,Yu Min DU,Yan WEN Department of Environmental Science,Wuhan University,Wuhan 430072. |
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| Abstract: | The interaction between CdS quantum dots and amino polysaccharide chitosan in aqueous solution was studied via photoluminescence (PL) spectra. The surface binding of chitosan with different molecular weight (MW) quenched the luminescence of QDs due to the elimination of radioactive anion vacancy centers. This process fits well with the Perrin model; lower MW chitosan exhibits higher quenching efficiency due to better availability to the surface. |
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| Keywords: | CdS quantum dots chitosan interaction photoluminescence. |
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