Microwave-assisted synthesis of surface-passivated doped ZnSe quantum dots with enhanced fluorescence

Autor:	Liang-Dong Chen, Xiao-Niu Peng, Xue-Feng Yu, Hai Jiang, Lu-Wen Jiang, Jing Zhou, De-Qiang Zhuo, Xing-Zhi Yang
Rok vydání:	2011
Předmět:	Photoluminescence Materials science Biocompatibility Passivation business.industry Doping Analytical chemistry General Physics and Astronomy Fluorescence Quantum dot Optoelectronics Physical and Theoretical Chemistry business Ultrashort pulse Order of magnitude
Zdroj:	Chemical Physics Letters. 510:135-138
ISSN:	0009-2614
DOI:	10.1016/j.cplett.2011.05.040
Popis:	A microwave-assisted synthesis route is established to prepare ZnSe:Cu and ZnSe:Mn quantum dots (QDs) with efficient surface passivation. The products exhibit over an order of magnitude stronger photoluminescence (PL) than the samples without surface passivation. The PL dynamics for fluorescence enhancement was studied by using time-resolved PL measurement. Considering the ultrafast growth rates (reaction time of ∼25 min) and the high quantum yields (over 12%) of the products, our proposed synthesis route suggests a facile method for obtaining various doped QDs, and the synthesized Cu (or Mn) doped ZnSe QDs with greatly improved biocompatibility may find use in biological applications.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::78d93e8aaecf4d6b5f4b9f09fb7ded1e https://doi.org/10.1016/j.cplett.2011.05.040 Zobrazit plný text záznamu Full Text from ScienceDirect