Back to articles
Volume: 14 | Article ID: art00039_2
Transient Response of Multiplied Photocurrent Observed in Metal/Organic Pigment Film Interface
  DOI :  10.2352/ISSN.2169-4451.1998.14.1.art00039_2  Published OnlineJanuary 1998

Transient response of photocurrent multiplication phenomenon at organic/metal interface was revealed to have two components, which were identified as primary and subsequent multiplied photocurrents, respectively. Transient photocurrent directly traced the multiplication process, i.e., accumulation of photogenerated carriers near the interface, building up a high electric field at the interface, and tunneling electron injection from metal electrode to the organic layer. Amount of charges required for the multiplication onset was found to give a specific value of 30 nCcm−2, implying that the increase of the carrier generation efficiency of primary photocurrent is expected to be effective to realize high speed multiplication. Based on these results, we developed the double-layered device which can be driven in high voltage through the increase of film uniformity. Consequently, large multiplication rate of 1.7 x 105 and short response time of 3.7 s was achieved.

Subject Areas :
Views 5
Downloads 0
 articleview.views 5
 articleview.downloads 0
  Cite this article 

Ken-ichi Nakayama, Masahiro Hiramoto, Masaaki Yokoyama, "Transient Response of Multiplied Photocurrent Observed in Metal/Organic Pigment Film Interfacein Proc. IS&T Int'l Conf. on Digital Printing Technologies (NIP14),  1998,  pp 490 - 493,

 Copy citation
  Copyright statement 
Copyright © Society for Imaging Science and Technology 1998
NIP & Digital Fabrication Conference
nip digi fabric conf
Society of Imaging Science and Technology
7003 Kilworth Lane, Springfield, VA 22151, USA