Band Gap Engineering of CdTe Quantum Dots by Hg Alloying in Infrared Region
12 Dec 2017-pp 1231-1234
TL;DR: In this paper, the diameter of the synthesized quantum dots is 3.8 ± 0.5 nm, as estimated from high resolution transmission electron micrographs, and the mercury molar fraction modified band gap engineering is demonstrated with band gap changing from 2.5 eV for CdTe quantum dots to 1.25 eV.
Abstract: We synthesized Hg alloyed CdTe quantum dots (Cd1−xHgxTe) using hydrothermal route. N-acetyl-cysteine is used as the capping agent for water dispersed Cd1−xHgxTe (x = 0, 0.05, 0.1 and 0.5) quantum dots. The diameter of the synthesized quantum dots is 3.8 ± 0.5 nm, as estimated from high resolution transmission electron micrographs. The mercury molar fraction modified band gap engineering is demonstrated with band gap changing from 2.5 eV for CdTe quantum dots to 1.25 eV for Cd0.5Hg0.5Te.
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