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.1.
Original language | English |
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Pages (from-to) | 333-338 |
Number of pages | 6 |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 3145 |
DOIs | |
State | Published - 1997 |
Event | Optical Probes of Conjugated Polymers - San Diego, CA, United States Duration: 28 Jul 1997 → 30 Jul 1997 |
Keywords
- Laser scanning microscopy
- PPV
- Photocurrent
- Photoluminescence