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Scanning photocurrent microscopy of lateral organic bulk heterojunctions.

Authors
  • Lombardo, Christopher J1
  • Glaz, Micah S
  • Ooi, Zi-En
  • Vanden Bout, David A
  • Dodabalapur, Ananth
  • 1 Microelectronics Research Center, The University of Texas at Austin, Austin, Texas 78758, USA.
Type
Published Article
Journal
Physical Chemistry Chemical Physics
Publisher
The Royal Society of Chemistry
Publication Date
Oct 14, 2012
Volume
14
Issue
38
Pages
13199–13203
Identifiers
DOI: 10.1039/c2cp42922e
PMID: 22948782
Source
Medline
License
Unknown

Abstract

Scanning confocal photocurrent microscopy has been used to characterize carrier collection efficiency in lateral bulk heterojunction devices. By analyzing the photocurrent mappings within these devices, the lateral extents of the space charge regions has been measured and reported. Modulation via white light bias or increased voltage bias is also shown to increase the size of the space charge regions.

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