Mobility-lifetime products in CuGaSe/sub 2/

Journal Article · Sun Mar 26 23:00:00 EST 1989 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.101487· OSTI ID:6418124

Balberg, I; Albin, D; Noufi, R

We report the first accurate determination of mobility-lifetime products, ..mu..tau, in thin films of a Cu-ternary chalcopyrite by photoconductivity and ambipolar diffusion length measurements. We found that for Cu-deficient, nearly intrinsic CuGaSe/sub 2/ at an illumination of about 0.25 AM1 the hole's ..mu..tau is 6 x 10/sup -6/ cm/sup 2//V while the electron's ..mu..tau is 2.6 x 10/sup -9/ cm/sup 2//V. The lifetime dependence on the light intensity was found to be characterized by the exponent ..gamma..-1 = -0.44.

• Research Organization: The Racah Institute of Physics, The Hebrew University, Jerusalem 91904, Israel
• OSTI ID: 6418124
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 54:13; ISSN APPLA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
AMBIPOLAR DIFFUSION
CARRIER LIFETIME
CARRIER MOBILITY
CHALCOGENIDES
CHARGED-PARTICLE TRANSPORT
COPPER COMPOUNDS
COPPER SELENIDES
DATA
DIFFUSION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EXPERIMENTAL DATA
GALLIUM COMPOUNDS
GALLIUM SELENIDES
HOLES
INFORMATION
LIFETIME
MOBILITY
NUMERICAL DATA
PHOTOCONDUCTIVITY
PHYSICAL PROPERTIES
RADIATION TRANSPORT
SELENIDES
SELENIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS