标題：Microwave-Assisted Synthesis of Water-Dispersed Gradient Alloyed CdSeS Quantum Dots and the Fluorescence Stability Study under Environmental Exposure作者：Zhan Hong-Ju; Zhou Pei-Jiang; Pan Ke-Liang; Ding Ling; He Zhen-Yu

來源出版物：CHINESE JOURNAL OF INORGANIC CHEMISTRY 卷：29 期：1 頁：1-8 DOI：10.3969/j.issn.1001-4861.2013.00.022出版年：JAN 10 2013

摘要：The study developed a facile method for the synthesis of water-dispersed gradient alloyed CdSeS QDs using microwave irradiation. The results of UV-Vis absorption spectra and fluorescence spectra showed the obtained QDs have a good photoluminescent quantum yield (PLQY, 30%). The characterizations of XRD and XPS proved that the CdSeS QDs possess a cubic phase with a CdSe-rich core and a thick CdS shell. The analysis of TEM and HRTEM implied the alloyed CdSeS QDs exhibit high crystallinity, small particle size (2 similar to 3 nm) and homogeneous size distributions. On the basis, the spectral stabilities of the obtained alloyed CdSeS QDs under environmental exposure such as oxidation, acid and Xenon lamp irradiation were also discussed. The results proved the obtained QDs present the same stability to that of CdTe QDs under Xenon lamp irradiation, but higher stability in an oxidative and acidic environment, which have wide applications in bio-labelling and imaging.

入藏号：WOS:000319541000001

文獻類型：Article

語種：Chinese

作者關鍵詞：microwave-assisted synthesis, aqueous synthesis, alloyed quantum dots, environmental exposure, fluorescence stability

擴展關鍵詞：CDTE NANOCRYSTALS; PHOTOLUMINESCENCE; PH; LUMINESCENCE; IRRADIATION

通訊作者地址：Zhou, Peijiang; Wuhan Univ, Sch Resource & Environm Sci, Hubei Biomass Resource Chem & Environm Biotechnol, Wuhan 430079, Peoples R China

電子郵件地址：zhoupj@whu.edu.cn

地址：

[Zhan Hong-Ju; Zhou Pei-Jiang; Pan Ke-Liang; Ding Ling; He Zhen-Yu] Wuhan Univ, Sch Resource & Environm Sci, Hubei BiomassResource Chem & Environm Biotechnol, Wuhan 430079, Peoples R China.

[Zhan Hong-Ju] Jingchu Univ Technol, Jingmen 448000, Hubei, Peoples RChina.

研究方向：Chemistry

ISSN：1001-4861

注：《無機化學學報》由中國化學會主辦，是展示我國無機化學研究成果的中文學術期刊，2012年影響因子為0.72。