The effect of nitridation temperature on the structural, optical and electrical properties of GaN nanoparticles

CrystEngComm ◽  
2014 ◽  
Vol 16 (17) ◽  
pp. 3584-3591 ◽  
Author(s):  
M. Gopalakrishnan ◽  
V. Purushothaman ◽  
V. Ramakrishnan ◽  
G. M. Bhalerao ◽  
K. Jeganathan
Keyword(s):  
High Temperature ◽  
Electrical Properties ◽  
Optical Quality ◽  
Precipitation Method ◽  
Optical And Electrical Properties ◽  
Co Precipitation ◽  
Nitridation Temperature

Nitridation at high temperature enhances the crystalline and optical quality of GaN nanoparticles synthesized by a novel chemical co-precipitation method.

Optical and Electrical Properties of Copper Substituted Zinc Oxide Prepared Using Co-precipitation Method

2011 ◽  
Author(s):  
Japinder Kaur ◽  
Tsering Namgyal ◽  
Sandeep Bansal ◽  
Sonal Singhal ◽  
S. K. Tripathi ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Electrical Properties ◽  
Precipitation Method ◽  
Optical And Electrical Properties ◽  
Co Precipitation

scholarly journals Microstructural, optical and electrical properties of Cl-doped CdTe single crystals

2016 ◽  
Vol 34 (3) ◽  
pp. 487-493
Author(s):  
Hyojeong Choi ◽  
Han Soo Kim ◽  
Joon-Ho Oh ◽  
Dong Jin Kim ◽  
Young Soo Kim ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Single Crystals ◽  
Doping Concentration ◽  
Surface Coverage ◽  
Optical Quality ◽  
Optical And Electrical Properties ◽  
Crystalline Orientation ◽  
Te Inclusions ◽  
Average Size

AbstractMicrostructural, optical and electrical properties of Cl-doped CdTe crystals grown by the low pressure Bridgman (LPB) method were investigated for four different doping concentrations (unintentionally doped, 4.97 × 1019 cm−3, 9.94 × 1019 cm−3 and 1.99 × 1020 cm−3) and three different locations within the ingots (namely, samples from top, middle and bottom positions in the order of the distance from the tip of the ingot). It was shown that Cl dopant suppressed the unwanted secondary (5 1 1) crystalline orientation. Also, the average size and surface coverage of Te inclusions decreased with an increase in Cl doping concentration. Spectroscopic ellipsometry measurements showed that the optical quality of the Cl-doped CdTe single crystals was enhanced. The resistivity of the CdTe sample doped with Cl at the 1.99 × 1020 cm−3 was above 1010 Ω.cm.

Structural, optical, electrical and thermo-electrical properties of Cu doped Co9S8-NPs synthesized via co-precipitation method

2020 ◽  
Vol 761 ◽  
pp. 137989
Author(s):  
Tariq Munir ◽  
Naeem ur Rehman ◽  
Arslan Mahmood ◽  
Khalid Mahmood ◽  
Adnan Ali ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Precipitation Method ◽  
Co Precipitation

Synthesis of the high temperature superconductor YBa2Cu3O7−δ by the hydroxide co-precipitation method

1997 ◽  
Vol 278 (1-2) ◽  
pp. 55-61 ◽  
Author(s):  
I. Schildermans ◽  
M. Van Bael ◽  
E. Knaepen ◽  
J. Yperman ◽  
J. Mullens ◽  
...  
Keyword(s):  
High Temperature ◽  
High Temperature Superconductor ◽  
Precipitation Method ◽  
Co Precipitation

Optical and Electrical Properties of Cd Te Laser-Synthetized

1982 ◽  
Vol 13 ◽  
Author(s):  
L. Baufay ◽  
A. Pigeolet ◽  
R. Andrew ◽  
L.D. Laude
Keyword(s):  
Electrical Properties ◽  
Single Crystal ◽  
Electrical Characterization ◽  
Point Of View ◽  
Optical And Electrical Properties ◽  
Impurity States ◽  
Absorption Measurements ◽  
Forbidden Gap

ABSTRACTOptical and electrical characterization of CdTe synthetized by laser irradiationofamultilayer film of alternately Cd and Te is achieved. Optical absorption measurements evidence the good quality of these films and show that they have behaviour comparable to the single crystal. The influence of the irradiation conditions on the electrical properties of such CdTe films is discussed; they are compared to single crystal from the point of view of resistivity. It is shown that it is possible to prepare by this means samples devoid of impurity states in the middle of the forbidden gap. Finally, the ohmicity of Au, Al, Cr, ITO and non irradiated Cd/Te sandwich contacts is tested.

INFLUENCE OF SYNTHESIS CONDITIONS ON Al(OH)3–Y(OH)3/ZrB2 COMPOSITE PARTICLES

2007 ◽  
Vol 14 (06) ◽  
pp. 1135-1141 ◽  
Author(s):  
JIE-GUANG SONG ◽  
LIAN-MENG ZHANG ◽  
JUN-GUO LI ◽  
JIAN-RONG SONG
Keyword(s):  
High Temperature ◽  
Reaction Time ◽  
Precipitation Method ◽  
Composite Particles ◽  
Coating Quality ◽  
Ultrasonic Dispersion ◽  
High Temperature Properties ◽  
Synthesis Conditions ◽  
Solution Reaction ◽  
Co Precipitation

Although Zirconium diboride ( ZrB 2) is a desirable combination with some good properties, it is easily oxidized in the high-temperature air to impact high-temperature properties, which dwindles the applied range. In order to decrease oxidization and improve the high-temperature properties of ZrB 2, the surface of ZrB 2 is coated with Al ( OH )3– Y ( OH )3 to synthesize Al ( OH )3– Y ( OH )3/ ZrB 2 composite particles. In this paper, the conditions of synthesizing Al ( OH )3– Y ( OH )3/ ZrB 2 composite particles by the co-precipitation method are investigated. Al ( OH )3– Y ( OH )3/ ZrB 2 composite particles are synthesized under different conditions, but the conditions of synthesizing Al ( OH )3– Y ( OH )3/ ZrB 2 composite particles with the better coating quality require pH = 9, the appropriate concentration ( Al 3+ = 0.017 mol/L , Y 3+ = 0.01 mol/L ) of composite solution, reaction time of 60 min, titration speed of 0.05 ml/s, using the dispersant in the ZrB 2 suspension and the ultrasonic dispersion, respectively.

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