Time-Resolved Photoluminescence Study and Microcapillary Laser of Blue-Emissive π-Conjugated Polymers Based on 9,10-Dihydrophenanthrene Unit

Abstract

The emission properties of π-conjugated polymers based on 9,10-dihydrophenanthrene units, which are expected to form linear and planar π-conjugations and have rigid characteristics in the main chain, have been clarified in the films. The photoluminescence decay of the π-conjugated polymers with the 9,10-dihydrophenanthrene unit has been studied in detail, and low-threshold photopumped multimode blue laser emission has been demonstrated from cylindrical microcavities with the polymer thin film fabricated onto the inner surface of an optical capillary tube.