Uni-Logo
You are here: Home Methods FMF Fiederle Contactless Resistivity Mapping (CoReMa)
Document Actions

Contactless Resistivity Mapping (CoReMa)

Methods FMF, Fiederle

Contactless Resistivity Mapping (CoReMa) Model: FMF model
Unit and Room: FMF, 3rd floor, R. 03005
Responsible: Dr. M. Fiederle
Physical Properties, Resistivity
Further information: www.fmf.uni-freiburg.de/service/
servicegruppen/sg_matchar/chat/

Short Description:

Contactless measurement of resistivity of solid state materials. Spatial mapping with 0.5 mm resolution and temperature controlling.

Picture of the Equipment

Contactless Resistivity Mapping 

Available Experiments/Techniques:

-Mappings of resisitivity for samples up to 100 mm diameter
-Measurements of resitivities from 105 Ohmcm up to
  1012 Ohmcm

Special Equipment:

Temperature controlling (270 K up to 350 K)
Use of LEDs with different wave lengths for Surface Photo Voltage measurements

Measurements on the equipment are currently done by: Students after extensive training
Trained scientific service personal
 
Recent Publications, where this instrument was
important (citation):
V Babentsov, J Franc, A Fauler, M Fiederle, R B James (2008) Distribution of zinc, resistivity, and photosensitivity in a vertical Bridgman grown Cd1-xZnxTe ingot JOURNAL OF CRYSTAL GROWTH 310: 15. 3482-3487
 
Typical problems that may be solved with this instrument: -Investigations of resistivity distribution-identification of inhomogeneities
-Identification of impurities and defects

 

pdficon.gif Contactless Resistivity Mapping (CoReMa) (this page as a pdf file)

Personal tools