Synthesis of Water Soluble CdSe Quantum Dots and Their Optical Properties

被引：4
|
作者：
Verma, Mahesh [1 ]
Gupta, Deepak Kumar [1 ]
Patidar, Dinesh [1 ]
Sharma, Kananbala [1 ]
Saxena, N. S. [1 ]
机构：
[1] Univ Rajasthan, Dept Phys, Semicond & Polymer Sci Lab, Lab 14 15, Jaipur 302004, Rajasthan, India
来源：
ADVANCED SCIENCE LETTERS | 2015年 / 21卷 / 08期
关键词：
Solvothermal; Quantum Dots; Fourier Transform Infrared Spectroscopy; TEM; HRTEM; ELECTRONIC STATES; BAND-GAP; SEMICONDUCTOR; PHOTOLUMINESCENCE; NANOCRYSTALS; GROWTH; ZNSE;
D O I：
10.1166/asl.2015.6408
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
This paper presents the preparation of water soluble CdSe quantum dots of high quality by solvothermal method. The QDs have been characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), high resolution transmission electron microscopy (HRTEM), Fourier transform infrared spectroscopy (FTIR), UV-Vis spectroscopy (UV-vis), photoluminescence spectroscopy (PL). The XRD and TEM results show that CdSe QDs is of cubic crystalline phase having size in 2-5 nm range. Besides this UV-vis absorption spectrum gives the band gap of 3.45 eV for CdSe, further blue shift of PL spectra shows size quantization.
引用
收藏
页码：2657 / 2660
页数：4
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