| CdS纳米粒子的表面修饰及其对光学性质的影响 |
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| 引用本文： | 张宇,付德刚,蔡建东,朱春霞,刘举正,陆祖宏.CdS纳米粒子的表面修饰及其对光学性质的影响[J].物理化学学报,2000,16(5):431-436. |
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| 作者姓名： | 张宇 付德刚 蔡建东 朱春霞 刘举正 陆祖宏 |
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| 作者单位： | Department of Chemistry and Chemical Engineering,National Laboratory of Molecular and Biomolecutar Electronics,Southeast University,Nanjing 210096 |
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| 基金项目： | 国家自然科学基金资助项目!(59582005) |
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| 摘 要： | 用反胶束法合成了用表面活性剂分子磺基焉珀酸双－２－乙基已酯钠盐（ＡＯＴ）进行表面修饰的ＣｄＳ纳米粒子（记为ＣｄＳ／ＡＯＴ－ＳＯ３＾－），研究了这种纳米粒子在正庚烷（ｈｅｐｔａｅ）和吡啶（Ｐｙ）溶剂中的荧肖及光解行为，发现其在正庚烷中荧光很强，而Ｐｙ却强烈地猝灭ＣｄＳ纳一子的荧光，用电荷转移猝灭机制进行了解释，这种解释为ＣｄＳ纳米粒子在Ｐｙ中光解实验进一步证实。
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| 关 键 词： | CdS纳米粒子 表面修饰 荧光粗灭 光解 |
| 收稿时间： | 1999-09-13 |
| 修稿时间： | 1999-09-13 |
Surface-modification of CdS Nanoparticle and its Optical Properties |
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| Zhang Yu,Fu Degang,Cai Jiandong,Zhu Chunxia,Liu Juzheng,Lu Zuhong.Surface-modification of CdS Nanoparticle and its Optical Properties[J].Acta Physico-Chimica Sinica,2000,16(5):431-436. |
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| Authors: | Zhang Yu Fu Degang Cai Jiandong Zhu Chunxia Liu Juzheng Lu Zuhong |
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| Institution: | Department of Chemistry and Chemical Engineering,National Laboratory of Molecular and Biomolecutar Electronics,Southeast University,Nanjing 210096 |
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| Abstract: | The surfacemodified CdS nanoparticle (named as CdS/AOTSO- 3) with surfactant, AOT, was synthesized by reverse micelle method. The fluorescence properties and photolysis behavior of this CdS were studied in heptane and pyridine.The results show that the fluorescence of the CdS nanoparticle is intense in heptane, but is strongly quenched by pyridine. These results are explained by the chargetransfer quenching mechanism. The viewpoint is also further proved by the photolysis experiments of the CdS nanoparticle in pyridine. |
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| Keywords: | CdS nanoparticle Surface-modification Fluorescence quenching Photolysis |
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