Effects of precursor pH on structural and optical properties of CdTe quantum dots by wet chemical route

2018 ◽  
Vol 29 (18) ◽  
pp. 16101-16110 ◽  
Author(s):  
S. Kiprotich ◽  
B. F. Dejene ◽  
M. O. Onani
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Cdte Quantum Dots ◽  
Structural And Optical Properties ◽  
Chemical Route ◽  
Wet Chemical ◽  
Wet Chemical Route

Thiol-Capped CdSe and CdTe Nanoclusters: Synthesis by a Wet Chemical Route, Structural and Optical Properties

1998 ◽  
Vol 536 ◽  
Author(s):  
A. L. Rogach ◽  
A Eychmüller ◽  
J. Rockenberger ◽  
A. Kornowski ◽  
H. Weller ◽  
...  
Keyword(s):  
Particle Size ◽  
X Ray Diffraction ◽  
Structural And Optical Properties ◽  
Chemical Route ◽  
X Ray ◽  
Stabilizing Agents ◽  
Transmission Electron ◽  
Wet Chemical ◽  
Wet Chemical Route ◽  
X Ray Absorption

AbstractCdSe and CdTe nanoclusters were formed in aqueous solutions at moderate temperatures by a wet chemical route in the presence of thiols as effective stabilizing agents. The nature of the stabilizing agent (thioalcohols or thioacids) had an important influence on the particle size and largely determined the photoluminescence properties. The nanoclusters were characterized by means of UV-vis absorption and photoluminescence spectroscopy, powder X-ray diffraction, high resolution transmission electron microscopy, and extended X-ray absorption fine structure measurements. CdSe and CdTe nanoclusters were crystalline, in the cubic zincblende phase, with mean sizes in the range of 2 to 5 nm depending on the preparative conditions and the postpreparative size-selective fractionation, and showed pronounced electronic transitions in the absorption spectra. Thioglycerol-stabilized CdTe nanoclusters possessed sharp band-egde photoluminescence being tunable with particle size.

Structural interpretation, growth mechanism and optical properties of ZnO nanorods synthesized by a simple wet chemical route

RSC Advances ◽  
2015 ◽  
Vol 5 (29) ◽  
pp. 23101-23113 ◽  
Author(s):  
Samapti Kundu ◽  
Sumanta Sain ◽  
Biswarup Satpati ◽  
Satya Ranjan Bhattacharyya ◽  
Swapan Kumar Pradhan
Keyword(s):  
Optical Properties ◽  
Growth Mechanism ◽  
Chemical Process ◽  
Room Temperature ◽  
Zno Nanorods ◽  
Capping Agent ◽  
Chemical Route ◽  
Simple Chemical ◽  
Wet Chemical ◽  
Wet Chemical Route

ZnO nanorods are synthesized at room temperature through a simple chemical process without using any template or capping agent.

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