Study of photoconductivity and photoluminescence of organic/porous silicon complexes

  • Zhao Y
  • Li D
  • Sang W
 et al. 
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In this paper, time-varying photoconductivity (PC) and the photoluminescence (PL) of different complexes were studied. Due to thick polymer layer hindering light penetrating into porous silicon (PS) layer, intrinsic PS luminescence in polymer/PS system disappeared. The physical origin of PL may be related to the recombination mechanisms involving surface defect states such as silicon oxide, siloxene. Due to carrier transfer controlled by different energy barrier, different devices prepared from different doped Si wafer showed opposite current-voltage characteristic. © 2006 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • Complexes
  • Photoconductivity
  • Photoluminescence
  • Porous silicon

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  • Yue Zhao

  • Dongsheng Li

  • Wenbin Sang

  • Deren Yang

  • Minhua Jiang

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