Photoconductivity and Photovoltage Generation in Novel Photocrosslinkable Nonlinear Optical Polymers
Abstract
Photoconductivity in photocrosslinkable second order nonlinear optical (NLO) polymeric materials and photovoltage generation in a poled guest- host polymer are reported. These NLO polymers have been functionalized with crosslinkable cinnamoyl groups and show relatively stable second order optical nonlinearities at room temperature when poled and crosslinked. Without introducing any photosensitizer or charge carrier transport agents, photoconductivity was obtained in these polymer systems. Optical excitation of the NLO chromophores lead to photocarrier generation and it is conjectured that these NLO chromophores also play a role in the carrier transport. In addition to photoconductivity, photovoltage generation was observed in the dye doped polymer upon poling. This poled polymer also exhibits a polarization dependent photovoltage when illuminated by light in the absorption region of the NLO chromophore.... Photocrosslinkable nonlinear optical polymer, Pphotovoltage generation, Guest host.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 31, 1993
- Accession Number
- ADA265780
Entities
People
- Jayant Ram Kumar
- Lian Li
- M. Kamath
- R. J . Jeng
- Sukant K. Tripathy
Organizations
- University of Massachusetts Lowell