CdZnS quantum dots formed by the Langmuir–Blodgett technique

CdZnS quantum dots formed by the Langmuir–Blodgett technique
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DOI：
10.1116/1.4810782
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发表时间：
2013-06
期刊：
Journal of Vacuum Science & Technology. B. Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phenomena
影响因子：
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通讯作者：
A. Milekhin;N. Yeryukov;L. Sveshnikova;T. Duda;D. Protasov;A. Gutakovskii;S. A. Batsanov;N. Surovtsev;S. Adichtchev;C. Himcinschi;Volodymir Dzhagan;F. Haidu;D. Zahn
A. Milekhin;N. Yeryukov;L. Sveshnikova;T. Duda;D. Protasov;A. Gutakovskii;S. A. Batsanov;N. Surovtsev;S. Adichtchev;C. Himcinschi;Volodymir Dzhagan;F. Haidu;D. Zahn
中科院分区：
其他
文献类型：
--
作者：
A. Milekhin;N. Yeryukov;L. Sveshnikova;T. Duda;D. Protasov;A. Gutakovskii;S. A. Batsanov;N. Surovtsev;S. Adichtchev;C. Himcinschi;Volodymir Dzhagan;F. Haidu;D. Zahn

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采用Langmuir-Blodgett技术在有机基质中制备了Zn含量（0 ~ 100%）系统变化的CdZnS量子点。退火的量子点结构导致去除的有机基质和增加的锌含量的独立的CdZnS量子点。退火后，量子点的大小确定从紫外-可见吸收实验是在良好的协议与电子显微镜测量。紫外-可见吸收和拉曼散射数据的分析表明，退火后的CdZnS量子点的含量的强烈变化。量子点形成过程的模型是使用沉淀模型，并充分描述实验结果。
CdZnS quantum dots (QDs) with systematically varied Zn content (from 0 to 100%) are formed in an organic matrix using the Langmuir–Blodgett technique. Annealing of the QD structures leads to a removal of the organic matrix and an increase in the Zn content for free-standing CdZnS QDs. After annealing, the size of QDs as determined from UV–vis absorption experiments is in good agreement with electron microscopy measurements. Analysis of UV–vis absorption and Raman scattering data demonstrates strong changes in the content of the CdZnS QDs upon annealing. A model of the process of QD formation is developed using the precipitation model and is found to adequately describe the experimental results.