Effect of Electrial Field on Colloidal CdSe/ZnS Quantum Dots
Effect of Electrial Field on Colloidal CdSe/ZnS Quantum Dots
复制标题
电场对胶体 CdSe/ZnS 量子点的影响
DOI：
10.1088/0256-307x/25/12/070
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发表时间：
2008-12-01
影响因子：
3.5
通讯作者：
Ye Yong-Hong
中科院分区：
文献类型：
--
作者：
Wang Zhi-Bing;Zhang Jia-Yu;Ye Yong-Hong
我们制造了夹在两个电极之间的胶体 CdSe/ZnS 量子点 (QD) 和聚 (9-乙烯基咔唑) (PVK) 的混合物。测量电致发光 (EL) 的电压和温度依赖性。可以清楚地观察到胶体量子点的量子限制斯塔克效应。为了探索 QD EL 的机理，我们用不同浓度的胶体 QD 制备了混合薄膜。建议电子和空穴分别在 QD 和 PVK 中单独传输。
We fabricate the hybrid of colloidal CdSe/ZnS quantum dots (QDs) and poly (9-vinylcarbazole) (PVK) sandwiched between two electrodes. The voltage and temperature dependences of the electroluminescence (EL) are measured. The quantum-confined Stark effect of colloidal QDs is clearly observed. To explore the mechanism in the QD EL, hybrid films are fabricated with different concentration of colloidal QDs. Electrons and holes are proposed to be separately transported in QDs and PVK, respectively.