Optical Properties of CdSe Quantum Dots via Non-TOP based Route

被引：0
|
作者：
Hamizi, Nor Aliya [1 ]
Johan, Mohd Rafie [1 ]
机构：
[1] Univ Malaya, Dept Mech Engn, Adv Mat Res Lab, Kuala Lumpur 50603, Malaysia
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2012年 / 7卷 / 09期
关键词：
Semiconductors; nanostructures; chemical synthesis; optical properties; SURFACE; GROWTH;
D O I：
暂无
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
This work reports on the refractive index and permittivity of cadmium selenide quantum dots (CdSe QDs) synthesized without the use of trioctylphosphine (TOP). The transmittance, reflectance, extinction coefficient and permittivity values increase with QDs' size. The refractive index is about 2.64 for CdSe QDs with crystallite sizes between 2.1-4.1 nm. The refractive index and absorbance is dependent on the real and imaginary parts of the dielectric constant respectively. The forbidden direct, allowed indirect and forbidden indirect band gap transitions are not present in the CdSe QDs synthesized via non-TOP based route.
引用
收藏
页码：8458 / 8467
页数：10
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