Study of bulk semi-insulating GaAs radiation detectors: Role of ohmic contact metallization in electrical charge transport and detection performance

2008 ◽  
Author(s):  
F. Dubecky ◽  
B. Zat'ko ◽  
P. Hubik ◽  
P. Bohacek ◽  
E. Gombia ◽  
...  
Keyword(s):  
Charge Transport ◽  
Ohmic Contact ◽  
Radiation Detectors ◽  
Detection Performance ◽  
Electrical Charge ◽  
Contact Metallization

Behavior of Zinc During Formation of Au(Zn) Ohmic Contacts to P-Type GaAs

1993 ◽  
Vol 300 ◽  
Author(s):  
E. Kamińska ◽  
A. Piotrowska ◽  
E. Mizera ◽  
R. Zarecka ◽  
J. Adamczewska ◽  
...  
Keyword(s):  
Ohmic Contact ◽  
Ohmic Contacts ◽  
Native Oxide ◽  
Significant Feature ◽  
X Ray Diffraction ◽  
Thermally Induced ◽  
Contact Metallization ◽  
Transmission Electron ◽  
P Type

ABSTRACTThe reactions between (100) GaAs and Au, Zn, and Au(Zn) ohmic contact metallization have been investigated by the use of transmission electron microscopy and x-ray diffraction. Emphasis is placed on the particular role of Zn during consecutive stages of the formation of an ohmic contact to p-GaAs. The most significant feature of the interaction of Zn with GaAs is the penetration of Zn atoms into the native oxide, which remains at the surface of GaAs after chemical treatment. Moreover, the presence of Zn in Au-based metallization is found to considerably suppress the thermally induced growth of metallization grains, making the microstructure of the contact virtually intact upon annealing at temperatures up to 460°C.

Charge Transport and Space-Charge Formation in Cd1−xZnxTe1−ySey Radiation Detectors

2021 ◽  
Vol 15 (5) ◽  
Author(s):  
J. Pipek ◽  
M. Betušiak ◽  
E. Belas ◽  
R. Grill ◽  
P. Praus ◽  
...  
Keyword(s):  
Space Charge ◽  
Charge Transport ◽  
Radiation Detectors ◽  
Charge Formation

scholarly journals Mechanical and Charge Transport Properties of Alkanethiol Self-Assembled Monolayers on a Au(111) Surface:  The Role of Molecular Tilt

Langmuir ◽  
2008 ◽  
Vol 24 (5) ◽  
pp. 2219-2223 ◽  
Author(s):  
Yabing Qi ◽  
Imma Ratera ◽  
Jeong Y. Park ◽  
Paul D. Ashby ◽  
Su Ying Quek ◽  
...  
Keyword(s):  
Charge Transport ◽  
Transport Properties ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled

The Maxwell-Wagner model for charge transport in ambipolar organic field-effect transistors: The role of zero-potential position

2012 ◽  
Vol 101 (24) ◽  
pp. 243302 ◽  
Author(s):  
Yasuhiro Mashiko ◽  
Dai Taguchi ◽  
Martin Weis ◽  
Takaaki Manaka ◽  
Mitsumasa Iwamoto
Keyword(s):  
Charge Transport ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Organic Field Effect Transistors ◽  
Wagner Model ◽  
Zero Potential
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