Abstract
We report on a photorefractive polymer composite that shows an initial rise time of 4 ms at a grating spacing of 3.1 μm. A systematic characterization of the ionization potential of a series of chromophores used in photorefractive applications is presented. No obvious correlation between material response time and ionization potential is found in PVK:ECZ:TNFDM composites doped with chromophores with an ionization potential higher or comparable to that of carbazole. All the chromophores under investigation are found to form a charge-transfer complex with the sensitizer TNFDM and a correlation between the spectral position of this band and the value of the ionization potential of the chromophore is demonstrated.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 405-412 |
| Number of pages | 8 |
| Journal | Journal of Imaging Science and Technology |
| Volume | 43 |
| Issue number | 5 |
| State | Published - Sep 1999 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- General Chemistry
- Atomic and Molecular Physics, and Optics
- Computer Science Applications
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