Quenching and enhancement of the dark conductivity in high-resistivity, photosensitive single crystals of cadmium sulfide

1965 ◽  
Vol 8 (12) ◽  
pp. 931-937 ◽  
Author(s):  
E. Harnik
Keyword(s):  
Cadmium Sulfide ◽  
Single Crystals ◽  
Dark Conductivity ◽  
High Resistivity

Effect of electron and neutron bombardment on the orange luminescence spectra of not specially doped and copper-doped cadmium sulfide single crystals

1997 ◽  
Vol 31 (4) ◽  
pp. 326-328 ◽  
Author(s):  
G. E. Davidyuk ◽  
V. S. Manzhara ◽  
N. S. Bogdanyuk ◽  
A. P. Shavarova ◽  
V. V. Bulatetskii
Keyword(s):  
Cadmium Sulfide ◽  
Single Crystals ◽  
Luminescence Spectra ◽  
Neutron Bombardment ◽  
Orange Luminescence

Exciton spectrum of cadmium sulfide single crystals with controlled variation of the stoichiometry and the concentration of oxygen

1994 ◽  
Vol 60 (3-4) ◽  
pp. 269-275 ◽  
Author(s):  
N. K. Morozova ◽  
A. L. Krysa ◽  
L. D. Nazarova ◽  
I. A. Karetnikov ◽  
N. D. Danilevich
Keyword(s):  
Cadmium Sulfide ◽  
Single Crystals ◽  
Exciton Spectrum

Growth of Large Diameter 6H SI and 4H n+ SiC Single Crystals

2010 ◽  
Vol 1246 ◽  
Author(s):  
Avinash Gupta ◽  
Ping Wu ◽  
Varatharajan Rengarajan ◽  
Xueping Xu ◽  
Murugesu Yoganathan ◽  
...  
Keyword(s):  
Single Crystals ◽  
Growth Process ◽  
Large Diameter ◽  
Commercial Production ◽  
High Resistivity ◽  
Steady Growth ◽  
Vanadium Doping ◽  
Low Capacitance ◽  
Very High

AbstractSiC single crystals are grown at II-VI by the seeded sublimation technique. The process has been scaled up and optimized to support commercial production of high-quality 100 mm diameter, Semi-Insulating (SI) 6H substrates and 100 mm 4H n+ substrates. The growth process incorporates special elements aimed at achieving uniform sublimation of the source, steady growth rate, uniform doping and reduced presence of background impurities.Semi-insulating 6H substrates are produced using precise vanadium compensation. Vanadium doping is optimized to yield SI material with very high resistivity and low capacitance.Crystal quality of the substrates is evaluated using a wide variety of techniques. Specific defects, their interaction and evolution during growth are described with emphasis on micropipes and dislocations. The current quality of the 6H SI and 4H n+ crystals grown at II-VI is summarized.

Method for growing cadmium sulfide single crystals and determination of their properties

1967 ◽  
Vol 10 (11) ◽  
pp. 100-101
Author(s):  
M. L. Gol'din ◽  
E. A. Muzalevskii ◽  
K. R. Razumovskii
Keyword(s):  
Cadmium Sulfide ◽  
Single Crystals

Preparation and characterization of polyaniline–cadmium sulfide nanocomposite for gas sensor application

2017 ◽  
Vol 31 (26) ◽  
pp. 1750234 ◽  
Author(s):  
Selma M. H. Al-Jawad ◽  
Sewench N. Rafic ◽  
Mustafa M. Muhsen
Keyword(s):  
Cadmium Sulfide ◽  
Oxidative Polymerization ◽  
Sol Gel ◽  
High Resistivity ◽  
Emeraldine Salt ◽  
Electrical Measurements ◽  
Salt Form ◽  
Operation Temperature ◽  
Cds Nanocomposites

Polyaniline (PANI) was prepared by chemical oxidative polymerization of aniline monomers as emeraldine salt form. By the same method, polyaniline–cadmium sulfide nanocomposites were synthesized in the presence of different percentages (10–50 wt.%) of cadmium sulfide (CdS) which was prepared by using sol–gel method. The optical band gap was decrease with increasing of CdS concentration, that is obtained from UV-VIS measurements. From SEM and AFM, there is uniform distribution for cadmium sulfide nanoparticles in the PANI matrix. The electrical measurements of nanocomposites exhibit the effect of crystallite size and the high resistivity of CdS on the resistivity of nanocomposites. Emeraldine salt PANI, CdS and PANI–CdS nanocomposites were investigated as gas sensors. From this investigation, the sensitivity of PANI–CdS for NO2 gas increase with the increasing of operation temperature and the optimum sensitivity was obtained at 200[Formula: see text]C. The sensitivity of nanocomposites at best temperature (200[Formula: see text]C) was increased and faster response time with the increasing of CdS contents.

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