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Proceedings Paper

Photocurrent imaging of poly(p-phenylenevinylene) thin film light-emitting devices with a laser scanning microscope
Author(s): Fu-Jen Kao; L. J. Chang; Sheng-Lung Huang; Shaw-An Chen; Kuen-Ru Chuang; Wunshain S. Fann
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Paper Abstract

We have observed the poly(p-phenylene vinylene) (PPV) thin film based light emitting devices with a multifunction laser scanning microscope. The spatial distribution of PPV thin film's reflectivity, photoluminescence, and photocurrent are imaged. In addition, site dependent optical density and photocurrent spectra are also measured, which reveal the nature of optical excitations within PPV. The contrast between photoluminescence and photocurrent images is attributed to field induced luminescence quenching under exciton model.

Paper Details

Date Published: 1 December 1997
PDF: 6 pages
Proc. SPIE 3145, Optical Probes of Conjugated Polymers, (1 December 1997); doi: 10.1117/12.279285
Show Author Affiliations
Fu-Jen Kao, National Sun Yat-Sen Univ. (Taiwan)
L. J. Chang, National Sun Yat-Sen Univ. (Taiwan)
Sheng-Lung Huang, National Sun Yat-Sen Univ. (Taiwan)
Shaw-An Chen, National Tsing-Hwa Univ. (Taiwan)
Kuen-Ru Chuang, National Tsing-Hwa Univ. (Taiwan)
Wunshain S. Fann, Institute of Atomic and Molecular Science (Taiwan)

Published in SPIE Proceedings Vol. 3145:
Optical Probes of Conjugated Polymers
Z. Valy Vardeny; Lewis J. Rothberg, Editor(s)

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