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Enhanced Solid-State Luminescence and Low-Threshold Lasing from Starburst Macromolecular Materials
Journal article   Peer reviewed

Enhanced Solid-State Luminescence and Low-Threshold Lasing from Starburst Macromolecular Materials

Wen-Yong Lai, Ruidong Xia, Qi-Yuan He, Peter A. Levermore, Wei Huang and Donal D. C. Bradley
Advanced materials (Weinheim), Vol.21(3), pp.355-360
19/01/2009
DOI: https://doi.org/10.1002/adma.200800748

Abstract

Chemistry Chemistry, Multidisciplinary Chemistry, Physical Materials Science Materials Science, Multidisciplinary Nanoscience & Nanotechnology Physical Sciences Physics Physics, Applied Physics, Condensed Matter Science & Technology Science & Technology - Other Topics Technology
High solid-state quantum efficiency (Phi(PL) approximate to 0.90) materials with attractive properties for OLED and laser applications are reported. Our results show that long fluorene chain-lengths are not a necessary prerequisite for efficient solid-state luminescence. Isolated-molecule-like solid-state emission, stable pure-deep-blue electroluminescence, and low-threshold lasing (lambda(laser) = 437 nm, E-th(laser) approximate to 0.4 nJ/pulse, 1.3 mu J cm(-2)) are demonstrated.

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