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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 15 — Aug. 1, 2013
  • pp: 2814–2817

Effect of solvent on detectivity of solution-processed polymer photodetectors

Dae Sung Chung and Hoyoul Kong  »View Author Affiliations


Optics Letters, Vol. 38, Issue 15, pp. 2814-2817 (2013)
http://dx.doi.org/10.1364/OL.38.002814


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Abstract

We demonstrate a high-performance solution-processed polymer photodetector (PPD) whose detectivity (D*) exceeds 1011 Jones over almost the entire range of visible light. PPDs processed from a chlorobenzene solution using 1,8-diiodooctane (DIO) as an additive exhibit large crystalline domains with long-range order, in contrast to the featureless morphology of PPDs processed with pure solvent. Moreover, PPDs processed with DIO exhibit higher charge carrier mobility, and thus high photoconductive gain without compromising long carrier lifetime. Consequently, a high-loading ratio of DIO (3%) yielded a PPD whose D* in the visible range was over threefold higher than that of PPD without DIO.

© 2013 Optical Society of America

OCIS Codes
(040.0040) Detectors : Detectors
(040.5160) Detectors : Photodetectors
(160.4890) Materials : Organic materials

ToC Category:
Detectors

History
Original Manuscript: June 17, 2013
Revised Manuscript: July 2, 2013
Manuscript Accepted: July 2, 2013
Published: July 29, 2013

Citation
Dae Sung Chung and Hoyoul Kong, "Effect of solvent on detectivity of solution-processed polymer photodetectors," Opt. Lett. 38, 2814-2817 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-15-2814

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