Growth and Brilliant Photo-Emission of Crystalline Hexagonal Column of Alq3 Microwires
AbstractWe report the growth and nanoscale luminescence characteristics of 8-hydroxyquinolinato aluminum (Alq3) with a crystalline hexagonal column morphology. Pristine Alq3 nanoparticles (NPs) were prepared using a conventional reprecipitation method. Crystal hexagonal columns of Alq3 were grown by using a surfactant-assisted self-assembly technique as an adjunct to the aforementioned reprecipitation method. The formation and structural properties of the crystalline and non-crystalline Alq3 NPs were analyzed with scanning electron microscopy and X-ray diffraction. The nanoscale photoluminescence (PL) characteristics and the luminescence color of the Alq3 single NPs and their crystal microwires (MWs) were evaluated from color charge-coupled device images acquired using a high-resolution laser confocal microscope. In comparison with the Alq3 NPs, the crystalline MWs exhibited a very bright and sharp emission. This enhanced and sharp emission from the crystalline Alq3 single MWs originated from effective π-π stacking of the Alq3 molecules due to strong interactions in the crystalline structure. View Full-Text
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Kim, S.; Kim, D.H.; Choi, J.; Lee, H.; Kim, S.-Y.; Park, J.W.; Park, D.H. Growth and Brilliant Photo-Emission of Crystalline Hexagonal Column of Alq3 Microwires. Materials 2018, 11, 472.
Kim S, Kim DH, Choi J, Lee H, Kim S-Y, Park JW, Park DH. Growth and Brilliant Photo-Emission of Crystalline Hexagonal Column of Alq3 Microwires. Materials. 2018; 11(4):472.Chicago/Turabian Style
Kim, Seokho; Kim, Do H.; Choi, Jinho; Lee, Hojin; Kim, Sun-Young; Park, Jung W.; Park, Dong H. 2018. "Growth and Brilliant Photo-Emission of Crystalline Hexagonal Column of Alq3 Microwires." Materials 11, no. 4: 472.
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