PURITY-PROPERTY RELATIONSHIPS IN ORGANIC SEMICONDUCTION.
Abstract
The removal of naturally occurring impurities from oxazole scintillators reduced both the dark and photoconductivity. The addition of charge-transfer acceptors (e.g. chloranil) reduced the Ip/Id ratio in the host at concentrations as low as 0.00001 mole fraction. Impurities reduced both Ip/Id and solid state fluorescence values. Sodium salicylate and 1,3,4,7-tetraphenylisobenzofuran were also studied. The dark conductivities of the cyanine (photosensitizing) dyes showed a decrease in activation energy with increasing molecular conjugation. Flash photolysis was investigated as an analytical tool. Triplet state absorption in anthracene was absent when highly purified reagents were used. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1968
- Accession Number
- AD0669352
Entities
People
- Abraham W. Berger
- John S. Driscoll
- Stephen C. Kwan
Organizations
- Monsanto