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Persistent photoconductivity in high resistive Zn{sub 3}P{sub 2}

Journal Article · · Journal of Applied Physics
DOI:https://doi.org/10.1063/1.4867296· OSTI ID:22277967
;  [1]
  1. Institute of Physics, Wroclaw University of Technology, Wybrzeże Wyspiańskiego 27, 50-360 Wrocław (Poland)
Resistivity and photoconductivity of p-type Zn{sub 3}P{sub 2} polycrystals grown by closed tube vapour transport method have been investigated. Persistent photoconductivity (PPC) has been observed at temperatures T < 200 K. At 77 K, the photoconduction persists for over 10{sup 3} s after termination of the light. The PPC buildup and decay kinetics have been measured at 77 K and analyzed in the frame of large lattice-relaxed deep levels. We have determined the spectral dependence for the optical cross section and obtain an optical ionization energy of 0.83 eV.
OSTI ID:
22277967
Journal Information:
Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 8 Vol. 115; ISSN JAPIAU; ISSN 0021-8979
Country of Publication:
United States
Language:
English

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