By a News Reporter-Staff News Editor at Science Letter -- Research findings on Luminescence are discussed in a new report. According to news reporting originating from Jinan, People's Republic of China, by NewsRx correspondents, research stated, "Novel hybrid SiO2-coated CdTe quantum dots (QDs) were created using CdTe QDs coated with a hybrid SiO2 shell containing Cd2+ ions and a sulfur source via a sol-gel process in aqueous solution. Aqueous CdTe QDs with tunable emitting color created through a reaction between cadmium chloride and sodium hydrogen telluride was used as cores for the preparation of hybrid SiO2-coated CdTe QDs."
Our news editors obtained a quote from the research from the University of Jinan, "In our experiments we found that the surface state of the cores and preparation conditions that affect the formation of the hybrid SiO2 shell also greatly affect photoluminescence of the hybrid SiO2-coated CdTe QDs. The generation of CdS-like clusters in the vicinity of the CdTe QDs, caused the quantum size effect of the QDs to be greatly reduced, which changes photoluminescence properties of the hybrid QDs fundamentally. Namely, the novel hybrid SiO2 shell played an important role in generating a series of specific optical properties. In addition, the novel hybrid SiO2 shell can be created if no CdTe QD is added. In order to gain an insight into the inter structure of the hybrid shell, we characterized the hybrid SiO2-coated CdTe QDs using X-ray diffraction analysis and discuss the formation mechanism of such a hybrid structure."
According to the news editors, the research concluded: "This work is significant because the novel hybrid SiO2-coated CdTe QDs with its excellent properties can be used in many applications, such as biolabeling and optoelectronic devices."
For more information on this research see: Highly luminescent hybrid SiO2-coated CdTe quantum dots: synthesis and properties. Luminescence, 2013;28(4):542-550. Luminescence can be contacted at: Wiley-Blackwell, 111 River St, Hoboken 07030-5774, NJ, USA. (Wiley-Blackwell - www.wiley.com/; Luminescence - onlinelibrary.wiley.com/journal/10.1002/(ISSN)1522-7243)
The news editors report that additional information may be obtained by contacting N. Liu, Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, People's Republic of China (see also Luminescence).
Keywords for this news article include: Asia, Jinan, Luminescence, Quantum Dots, Quantum Physics, People's Republic of China
Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC