Journal
JOURNAL OF MATERIALS CHEMISTRY C
Volume 2, Issue 10, Pages 1801-1807Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3tc32161d
Keywords
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Funding
- National Basic Research Program of China (973 program) [2013CB834701]
- Research Grants Council of Hong Kong [HKUST2/CRF/10, N_HKUST620/11]
- University Grants Committee of Hong Kong [AoE/P-03/08, T23-713111-1]
- Guangdong Innovative Research Team Program [201101C0105067115]
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A red-emissive barbituric acid-functionalized tetraphenylethene derivative (TPE-HPh-Bar) was designed and synthesized. TPE-HPh-Bar exhibits the effect of twisted intramolecular charge transfer due to the interaction of its donor and acceptor units. Whereas TPE-HPh-Bar emits faintly in solution, it becomes a strong emitter in the aggregated state, demonstrating a phenomenon of aggregation-induced emission. TPE-HPh-Bar can self-assemble into nanospheres upon natural evaporation of its solutions. In the presence of melamine, nanorods and (un) sealed nanotubesare formed, the content of which depends on the melamine amount. The crystalline nanorods of TPE-HPh-Bar grown from diethyl ether/hexane solution exhibit a good optical waveguiding effect with a low optical loss (0.137 dB mu m(-1)). Such attributes make the material to find wide applications in many areas such as biological imaging and optoelectronic nano-devices.
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