Realization of 270 nm band AlGaN based UV-LEDs on large area AlN templates with high crystalline quality

2009 ◽  
Vol 6 (S2) ◽  
pp. S462-S465 ◽  
Author(s):  
Takayoshi Takano ◽  
Hideki Hirayama ◽  
Sachie Fujikawa ◽  
Kenji Tsubaki
Keyword(s):  
Crystalline Quality ◽  
Large Area ◽  
High Crystalline Quality ◽  
Uv Leds

scholarly journals High Crystalline Quality Conductive Polypyrrole Film Prepared by Interface Chemical Oxidation Polymerization Method

2021 ◽  
Vol 12 (1) ◽  
pp. 58
Author(s):  
Yuefei Wang ◽  
Renjing Song ◽  
Li Li ◽  
Rongpeng Fu ◽  
Zhiguo Liu ◽  
...  
Keyword(s):  
Chemical Oxidation ◽  
Crystalline Quality ◽  
Large Area ◽  
High Crystalline Quality ◽  
Xrd Diffraction ◽  
Chemical Oxidation Polymerization ◽  
Polypyrrole Film ◽  
High Degree ◽  
Polymerization Method ◽  
Degree Of Order

The authors report that polypyrrole (PPy) films with large area and high crystalline quality have been achieved using an interfacial chemical oxidation method. By dissolving different reactants in two immiscible solvents, the PPy is synthetized at the interface region of the two solutions. The PPy films have sharp XRD diffraction peaks, indicating that the molecular chains in the film are arranged in a high degree of order and that they reflect high crystalline quality. High crystal quality is also conducive to improving electrical conductivity. The conductivity of the as prepared PPy film is about 0.3 S/cm, and the carrier mobility is about 5 cm2/(Vs). In addition, the biggest advantage of this method is that the prepared PPy film has a large area and is easy to transfer to other substrates. This will confidently broaden the application of PPy in the future.

High crystalline quality ZnSe films grown by pulsed laser deposition

1995 ◽  
Vol 67 (10) ◽  
pp. 1390-1392 ◽  
Author(s):  
M. Y. Chern ◽  
H. M. Lin ◽  
C. C. Fang ◽  
J. C. Fan ◽  
Y. F. Chen
Keyword(s):  
Pulsed Laser Deposition ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Crystalline Quality ◽  
High Crystalline Quality

High crystalline quality erbium silicide films on (100) silicon, grown in high vacuum

1996 ◽  
Vol 102 ◽  
pp. 151-155 ◽  
Author(s):  
G. Kaltsas ◽  
A. Travlos ◽  
A.G. Nassiopoulos ◽  
N. Frangis ◽  
J. Van Landuyt
Keyword(s):  
High Vacuum ◽  
Crystalline Quality ◽  
High Crystalline Quality

Silane controlled three dimensional GaN growth and recovery stages on a cone-shape nanoscale patterned sapphire substrate by MOCVD

CrystEngComm ◽  
2015 ◽  
Vol 17 (24) ◽  
pp. 4469-4474 ◽  
Author(s):  
J. Z. Li ◽  
Z. Z. Chen ◽  
Q. Q. Jiao ◽  
Y. L. Feng ◽  
S. Jiang ◽  
...  
Keyword(s):  
Sapphire Substrate ◽  
Strain Relaxation ◽  
Three Dimensional ◽  
Crystalline Quality ◽  
High Crystalline Quality ◽  
Patterned Sapphire Substrate ◽  
Specular Surface

The silane-controlled 3D growth led to a high crystalline quality, much strain relaxation and a specular surface for the GaN epilayers on NPSS.

Growth of High Crystalline Quality HVPE-GaN Crystals with Controlled Electrical Properties

2015 ◽  
Vol 15 (10) ◽  
pp. 4837-4842 ◽  
Author(s):  
J. A. Freitas ◽  
J. C. Culbertson ◽  
N. A. Mahadik ◽  
T. Sochacki ◽  
M. Bockowski ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Crystalline Quality ◽  
High Crystalline Quality

Planarization of Zinc Oxide Surface and Evaluation of Processing Damage

2011 ◽  
Vol 485 ◽  
pp. 215-218 ◽  
Author(s):  
Hiroki Miyazaki ◽  
Yutaka Adachi ◽  
Isao Sakaguchi ◽  
Takamasa Ishigaki ◽  
Naoki Ohashi
Keyword(s):  
Zinc Oxide ◽  
Flat Surface ◽  
Mechanical Polishing ◽  
Crystalline Quality ◽  
Polished Surface ◽  
Oxide Surface ◽  
High Crystalline Quality ◽  
Atomically Flat

The processes for polishing a ZnO surface were investigated with the aim of establishing a process for obtaining an atomically flat surface with high crystalline quality. The defects in a layer undergoing mechanical polishing were monitored through photoluminescence measurements, and the purity of the polished surface was characterized by SIMS. An atomicallyfishing process.

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