Thermal Wave Analysis: A Tool for Non-Invasive Testing in Ion Beam Synthesis of Wide Band Gap Materials

1998 ◽  
Vol 540 ◽  
Author(s):  
G. Teichert ◽  
L. Schleicher ◽  
Ch. Knedlik ◽  
M. Voelskov ◽  
W. Skorupa ◽  
...  
Keyword(s):  
Band Gap ◽  
Structural Changes ◽  
Ion Beam ◽  
Measurement Techniques ◽  
Wide Band ◽  
Process Conditions ◽  
Wide Band Gap ◽  
Ion Beam Synthesis ◽  
Semiconductor Compounds ◽  
Destructive Measurement

AbstractPhotothermal methods provide a valuable complement to the destructive measurement techniques for the detection of the optimal process conditions in ion beam synthesis of wide band gap semiconductor compounds. In addition to their nondestructive and non contact qualities, they are highly sensitive to changes of thermophysical properties due to structural changes. Analyses have been carried out with (SiC)l-x(AIN)x compounds, formed by ion beam synthesis.

Emission in Wide Band Gap II-VI Semiconductor Compounds with Low Dimensional Structure

2003 ◽  
pp. 211-216
Author(s):  
Y Yang ◽  
X Fan ◽  
J Zhang ◽  
Y Liu ◽  
Y Lu ◽  
...  
Keyword(s):  
Band Gap ◽  
Wide Band ◽  
Dimensional Structure ◽  
Wide Band Gap ◽  
Semiconductor Compounds ◽  
Low Dimensional

scholarly journals Annealing Induced Dissipation of Residual Trapped Charge in Focused Ion Beam Processed Wide Band Gap Materials for Device Applications.

2006 ◽  
Vol 12 (S02) ◽  
pp. 1326-1327
Author(s):  
MA Stevens-Kalceff ◽  
P Gowlett
Keyword(s):  
Band Gap ◽  
Focused Ion Beam ◽  
Ion Beam ◽  
Wide Band ◽  
Wide Band Gap ◽  
Device Applications ◽  
Trapped Charge

Extended abstract of a paper presented at Microscopy and Microanalysis 2006 in Chicago, Illinois, USA, July 30 – August 3, 2005

TEM and cathodoluminescence of precipitates in II-VI semiconductors

1988 ◽  
Vol 46 ◽  
pp. 488-489
Author(s):  
Joanna L. Batstone
Keyword(s):  
Crystal Growth ◽  
Band Gap ◽  
Local Strain ◽  
Wide Band ◽  
Optoelectronic Device ◽  
Wide Band Gap ◽  
Bulk Crystal Growth ◽  
Transmission Electron ◽  
Device Applications ◽  
Stoichiometry Control

Interest in II-VI semiconductors centres around optoelectronic device applications. The wide band gap II-VI semiconductors such as ZnS, ZnSe and ZnTe have been used in lasers and electroluminescent displays yielding room temperature blue luminescence. The narrow gap II-VI semiconductors such as CdTe and HgxCd1-x Te are currently used for infrared detectors, where the band gap can be varied continuously by changing the alloy composition x.Two major sources of precipitation can be identified in II-VI materials; (i) dopant introduction leading to local variations in concentration and subsequent precipitation and (ii) Te precipitation in ZnTe, CdTe and HgCdTe due to native point defects which arise from problems associated with stoichiometry control during crystal growth. Precipitation is observed in both bulk crystal growth and epitaxial growth and is frequently associated with segregation and precipitation at dislocations and grain boundaries. Precipitation has been observed using transmission electron microscopy (TEM) which is sensitive to local strain fields around inclusions.

Wide Band-Gap Kesterite Thin Films for Photovoltaic Applications

2018 ◽  
Author(s):  
Raquel Caballero ◽  
Leonor de la Cueva ◽  
Andrea Ruiz-Perona ◽  
Yudenia Sánchez ◽  
Markus Neuschitzer ◽  
...  
Keyword(s):  
Thin Films ◽  
Band Gap ◽  
Wide Band ◽  
Wide Band Gap ◽  
Photovoltaic Applications

Preparation and Characterization of Polyvinylidene Fluoride/ZrO2-TiO2 Optical Film with Wide Band Gap and High Refractive Index

2013 ◽  
Vol 28 (6) ◽  
pp. 671-676 ◽  
Author(s):  
Yu-Qing ZHANG ◽  
Li-Li ZHAO ◽  
Shi-Long XU ◽  
Chao ZHANG ◽  
Xiao-Ying CHEN ◽  
...  
Keyword(s):  
Refractive Index ◽  
Band Gap ◽  
Polyvinylidene Fluoride ◽  
Wide Band ◽  
High Refractive Index ◽  
Wide Band Gap ◽  
Optical Film

Efficient wide-band-gap copolymer donors for organic solar cells with perpendicularly placed benzodithiophene units

2021 ◽  
Vol 499 ◽  
pp. 229961
Author(s):  
Meiling Zhang ◽  
Xiaopeng Xu ◽  
Liyang Yu ◽  
Qiang Peng
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Organic Solar Cells ◽  
Wide Band ◽  
Wide Band Gap
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