scholarly journals Effect of high-temperature annealing on electrical and optical properties of undoped semi-insulating GaAs

1998 ◽  
Vol 83 (1) ◽  
pp. 260-265 ◽  
Author(s):  
Z.-Q. Fang ◽  
D. C. Reynolds ◽  
D. C. Look ◽  
N. G. Paraskevopoulos ◽  
T. E. Anderson ◽  
...  
Keyword(s):  
Optical Properties ◽  
High Temperature ◽  
High Temperature Annealing ◽  
Electrical And Optical Properties

Annealing behaviors of structural, interfacial and optical properties of HfO2 thin films prepared by plasma assisted reactive pulsed laser deposition

2010 ◽  
Vol 25 (4) ◽  
pp. 680-686 ◽  
Author(s):  
Zhifeng Ying ◽  
Wentao Tang ◽  
Zhigao Hu ◽  
Wenwu Li ◽  
Jian Sun ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Optical Properties ◽  
High Temperature ◽  
Pulsed Laser Deposition ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
High Temperature Annealing ◽  
Good Thermal Stability ◽  
Transmission Measurements ◽  
Deposited Films

The structure and properties of HfO2 films deposited by plasma assisted reactive pulsed laser deposition and annealed in N2 were studied upon thermal annealing as well as the evaluation of thermal stability by Fourier transform infrared spectroscopy, spectroscopic ellipsometry, and optical transmission measurements. The as-deposited HfO2 films appear predominantly monoclinic with an amorphous matrix which becomes crystallized after high-temperature annealing. No interfacial SiOx is observed for the as-deposited films on Si. The deposited HfO2 films exhibit good thermal stability and show excellent transparency in a wide spectral range with optical band gap energies of 5.65–5.73 eV depending on annealing temperature. An improvement in the optical properties by high-temperature annealing is also observed.

Ternary Bismuth Chalcogenides for Thermoelectric Applications. Synthesis and Charge Transport Properties of New Compounds in the K-BI-S System.

1995 ◽  
Vol 410 ◽  
Author(s):  
Mercouri G. Kanatzidis ◽  
Timothy J. McCarthy ◽  
Troy A. Tanzer ◽  
Li-H. Chen ◽  
Tim Hogan ◽  
...  
Keyword(s):  
Optical Properties ◽  
High Temperature ◽  
Charge Transport ◽  
Three Dimensional ◽  
Bismuth Atom ◽  
Electrical And Optical Properties ◽  
Bismuth Chalcogenides ◽  
Dimensional Network ◽  
Ternary Sulfide ◽  
New Compounds

ABSTRACTKBi6.33S10 and K2Bi8S13 were synthesized by the direct combination of K2S/Bi2S3 at high temperature (>700°C). The reaction of K2S/3.3Bi2S3 at 800°C revealed the presence of a new ternary sulfide KBi6.33S10 (I) (92% yield). The structure consists of blocks of Bi2Te3 and Cdl2-type units that are connected to form a three-dimensional network with K+ ions located in the channels that run along the b-axis. The same reaction but with a different ratio, at 750°C, gave the new ternary sulfide K2Bi8S13 (II) (94% yield). The structure of the shiny rod-like crystals is closely related to that of I. As in I, it also consists of Bi2Te3 and Cdl2-type fragments that connect to form K+-filled channels. The two potassium atoms and one bismuth atom are disordered over three sites. Some preliminary electrical and optical properties of these materials are discussed.

Electrical and optical properties improvement of GeSn layers formed at high temperature under well-controlled Sn migration

2017 ◽  
Vol 70 ◽  
pp. 139-144 ◽  
Author(s):  
Noriyuki Taoka ◽  
Giovanni Capellini ◽  
Viktoria Schlykow ◽  
Michele Montanari ◽  
Peter Zaumseil ◽  
...  
Keyword(s):  
Optical Properties ◽  
High Temperature ◽  
Electrical And Optical Properties

Electrical and optical properties improvement of GeSn layers formed at high temperature under well-controlled Sn migration

2017 ◽  
Vol 57 ◽  
pp. 48-53 ◽  
Author(s):  
Noriyuki Taoka ◽  
Giovanni Capellini ◽  
Viktoria Schlykow ◽  
Michele Montanari ◽  
Peter Zaumseil ◽  
...  
Keyword(s):  
Optical Properties ◽  
High Temperature ◽  
Electrical And Optical Properties

Structural and optical properties of InAs–GaAs quantum dots subjected to high temperature annealing

1996 ◽  
Vol 69 (20) ◽  
pp. 3072-3074 ◽  
Author(s):  
A. O. Kosogov ◽  
P. Werner ◽  
U. Gösele ◽  
N. N. Ledentsov ◽  
D. Bimberg ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
High Temperature ◽  
High Temperature Annealing ◽  
Structural And Optical Properties
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