Effect of Electrical Field on Colloidal CdSe/ZnS Quantum Dots

Autor:	YE Yong-Hong, Wang Zhi-Bing, Zhang Jia-Yu, Cui Yi-Ping
Rok vydání:	2008
Předmět:	Materials science Nanostructure business.industry General Physics and Astronomy Phosphor Electroluminescence Colloid symbols.namesake Stark effect Quantum dot Electrode symbols Optoelectronics business Luminescence
Zdroj:	Chinese Physics Letters. 25:4435-4438
ISSN:	1741-3540 0256-307X
DOI:	10.1088/0256-307x/25/12/070
Popis:	We fabricate the hybrid films 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 concentrations of colloidal QDs. Electrons and holes are proposed to be separately transported in QDs and PVK, respectively.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2195116222436298301a9d68b29c2bcc https://doi.org/10.1088/0256-307x/25/12/070 Zobrazit plný text záznamu