DocumentCode
399805
Title
Persistent photoconductivity effect in amorphous As2Se3:Sn thin films
Author
Vasiliev, LA ; Harea, D.V. ; Colomeico, E.P. ; Iovu, M.S.
Author_Institution
Center of Optoelectronics, Chisinau, Moldova
Volume
1
fYear
2003
fDate
28 Sept.-2 Oct. 2003
Abstract
Persistent photoconductivity effects have been studied in amorphous As2Se3 films doped with Sn impurity using both transient and steady-state photocurrent measurements. From the photocurrent spectra the broad distributions of defect states in the band gap of As2Se3:Snx (x>0.5 at.% Sn) samples was evaluated. It was shown that these states contribute significantly to the persistent photoconductivity.
Keywords
amorphous semiconductors; arsenic compounds; energy gap; photoconductivity; semiconductor thin films; tin; As2Se3:Snx; amorphous As2Se3:Sn thin films; band gap; broad distributions; defect states; persistent photoconductivity effect; steady-state photocurrent measurements; transient photocurrent measurements; Amorphous materials; Electrodes; Glass; Impurities; Lighting; Optical films; Photoconductivity; Steady-state; Tin; Transistors;
fLanguage
English
Publisher
ieee
Conference_Titel
Semiconductor Conference, 2003. CAS 2003. International
Print_ISBN
0-7803-7821-0
Type
conf
DOI
10.1109/SMICND.2003.1251364
Filename
1251364
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