Toward Electrically Pumped Organic Diode Lasers: Electroluminescence of Proton Transfer Polymers
Abstract
Electroluminescence from a series of polymers and copolymers which exhibit photoinduced excited-state intramolecular proton transfer (ESIPT) is reported. Among these polymers containing ESIPT moieties in the main chain or side chain are poly(1,4-(2-hydroxy)phenylene benzobisthiazole-co-decamethylene benzobisthiazole), poly (styrene-co-3-hydroxy-4'-ethenylflavone) and poly(2,5-benzoxazolediyl(2,2,2-trifluoro-1 -(trifluoromethyl) ethylidene)-5,2-benzoxazolediyl-4-hydroxy 1, 3-phenylene). The electroluminescence spectra of these polymers are identical to their photoluminescence spectra, indicating that electroluminescence originates from electrically-generated intramolecular proton transfer (EGIPT). Because electroluminescence from EGIPT implies electrically-induced population inversion, these results demonstrate the possibility of electrically-pumped organic solid-state laser diodes.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 16, 1998
- Accession Number
- ADA356296
Entities
People
- Joseph B Schlenoff
- Richard M. Tarkka
- Samson A. Jenekhe
- Xuejun Zhang
Organizations
- University of Rochester