Synthesis of Silica Encapsulated ZnSe Quantum Dots by Microemulsion Method
- Authors
- Lee, Areum; Wang, Ting; Kim, Ji Hyeon; Yoon, Hyon Hee; Park, Sang Joon
- Issue Date
- 2012
- Publisher
- TAYLOR & FRANCIS LTD
- Keywords
- ZnSe; quantum dot; microemulsion; silica encapsulation; photostability
- Citation
- MOLECULAR CRYSTALS AND LIQUID CRYSTALS, v.564, pp.10 - 17
- Journal Title
- MOLECULAR CRYSTALS AND LIQUID CRYSTALS
- Volume
- 564
- Start Page
- 10
- End Page
- 17
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/17567
- DOI
- 10.1080/15421406.2012.690634
- ISSN
- 1542-1406
- Abstract
- Silica-encapsulated ZnSe quandum dots (QDs) were obtained by employing di-2-ethylhexyl sodium sulfosuccinate (AOT) microemulsion methods. When the QDs were coated by silica, well-defined spherical shapes were formed and the photoluminescence (PL) efficiency was decreased from 4.9% to 1.9% with increasing water content W (W = [H2O]/[AOT]). In addition, ZnSe QDs showed the good photostability. The present method does not require a hot reaction temperature or extremely toxic H2Se gas as a Se precursor. Moreover, they are cadmium free and less toxic. Therefore, the present method can be a safer and more economical method for obtaining the silica-encapsulated ZnSe QDs, which may be a potential material for Light-Emitting Diode (LED), solar cell, and biosensors.
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Collections - 공과대학 > 화공생명공학과 > 1. Journal Articles
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