标题：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

来源出版物：CHINESE JOURNAL OF INORGANIC CHEMISTRY 卷：29 期：1 页：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

文献类型：Article

语种：Chinese

作者关键词：microwave-assisted synthesis, aqueous synthesis, alloyed quantum dots, environmental exposure, fluorescence stability

扩展关键词：CDTE NANOCRYSTALS; PHOTOLUMINESCENCE; PH; LUMINESCENCE; IRRADIATION

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

电子邮件地址：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：《无机化学学报》由中国化学会主办，是展示我国无机化学研究成果的中文学术期刊，2012年影响因子为0.72。