Macromolecules

38, No.26, 27th Dec.2005, p.10829-35

EXCIMER FORMATION BY ELECTRIC FIELD INDUCTION AND SIDE CHAIN MOTION ASSISTANCE IN POLYFLUORENES

Hsin-Hung Lu; Ching-Yang Liu; Tzu-Hao Jen; Jin-Long Liao; Hao-En Tseng; Chih-Wei Huang; Ming-Chin Hung; Show-An Chen

Taiwan,National Tsing Hua University

The reasons for variations in the electroluminescence spectrum during continuous operation of polyfluorene based devices is studied. Measurements on field induction-thermally stimulated current and electroluminescence over a wide temperature range demonstrate that electric field induction accompanied by side-chain motion can lead to formation of excimers which contribute to the growth of a green component in the electroluminescence spectrum. 52 refs.

TAIWAN

Accession no.955630