Wavelength dependence of 4-dimethylamino-4′-nitrostilbene polymer thin film photodegradation
- 17 August 1998
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 73 (7) , 912-914
- https://doi.org/10.1063/1.122035
Abstract
The polymeric electro-optical stilbene material, 4-dimethylamino-4′-nitrostilbene (DANS), was illuminated at wavelengths ranging from the visible to near-infrared in order to quantify its photodegradation processes. Photodegradation due to one-photon and two-photon absorption was studied. The quantum efficiency of the chromophore degradation is found to be strongly wavelength and absorption mechanism dependent. This suggests that, in different regions of the spectrum, different excited states or different mechanisms are involved in the degradation process. In the near-infrared spectral region, operation lifetimes of electro-optic devices made from this chromophore are expected to be around only few hundreds hours, dramatically shorter than it was previously believed.Keywords
This publication has 12 references indexed in Scilit:
- Photodecay mechanisms in side chain nonlinear optical polymethacrylatesApplied Physics Letters, 1996
- Photostability of dye molecules trapped in solid matricesApplied Optics, 1996
- Two photon absorption of di-alkyl-amino-nitro-stilbene side chain polymerApplied Physics Letters, 1994
- Photochemically formed refractive index profiles in nonlinear optical polymer thin filmsApplied Physics Letters, 1994
- Excitation and relaxation energies oftrans-stilbene: Confined singlet, triplet, and charged bipolaronsPhysical Review B, 1993
- Large photoinduced birefringence in an optically nonlinear polyester polymerApplied Physics Letters, 1991
- Photoinduced channel waveguide formation in nonlinear optical polymersElectronics Letters, 1990
- Polarization holography 1: A new high-efficiency organic material with reversible photoinduced birefringenceApplied Optics, 1984
- The photochemistry of azo-dyes. The wavelength-dependent photo-reduction of 4-diethylamino-4′-nitroazobenzeneJournal of the Chemical Society, Perkin Transactions 2, 1982
- Photobleaching of Organic Laser Dyes in Solid MatricesApplied Optics, 1972