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Influence of AlN protective film thickness on the hardness and electrophotographic properties of organic photoconductors

  • X. S. Miao
  • , Y. C. Chan
  • , C. K H Wong
  • , D. P. Webb
  • , Y. W. Lam
  • , K. M. Leung
  • , D. S. Chiu

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

Abstract

The deposition of a protective film to increase the hardness of an organic photoconductor (OPC) surface is an effective method to lengthen the lifetime of the OPC. In this work, AlN protective films were deposited onto OPC samples by rf reactive magnetron sputtering with low substrate temperature. The AlN films were deposited with optimized sputtering conditions and exhibited very high transmissivity in the visible wavelength range 300-800 nm. The films caused a remarkable increase in the hardness of the OPC surface, by between 32 and 62%. The acceptance voltage, dark decay rate, photodischarge rate, difference between the residual potential and the acceptance voltage of the OPC protected by AlN film were improved. These results show AlN is a suitable protective film for OPC.
Original languageEnglish
Pages (from-to)387-390
JournalJournal of Electronic Materials
Volume26
Issue number4
Publication statusPublished - Apr 1997

Research Keywords

  • AlN film
  • Electrophotographic properties
  • Microhardness
  • Organic photoconductor

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