White-light emitting microtubes of mixed organic charge-transfer complexes.

Lei, Yi-Long; Jin, Yue; Zhou, Dong-Ying; Gu, Wei; Shi, Xiao-Bo; Liao, Liang-Sheng; Lee, Shuit-Tong · Adv Mater · 2012

basic_science · Level V

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Abstract

Self-assembled microtubes of mixed charge-transfer (CT) complexes comprising TCNB and naphthalene can be constructed with pyrene as dopant by an etching-assisted CT-induced interaction. Highly efficient Förster resonance energy transfer (FRET) from the excited naphthalene-TCNB to pyrene-TCNB molecules is obtained in mixed CT complex microtubes. White-light emissive CT complex microtubes can be formed by adjusting the dopant concentration and serve as an active optical waveguide.

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