Facile Synthesis of Coronene Dimers Having Unique Optical Properties  

作　　者：Taichi Hayakawa Hayong Song Yosuke Ishii Shinji Kawasaki 

机构地区：[1]Materials Science and Engineering, Nagoya Institute of Technology Gokiso, A ichi 466-8555, Japan

出　　处：《Journal of Chemistry and Chemical Engineering》2015年第7期442-447,共6页化学与化工（英文版）

摘　　要：The authors synthesized very pure dimer phase of coroneae by simple heat-treatment and subsequent sublimation purification. It was confirmed by laser desorption/ionization mass spectroscopy measurements that pure dimer phase of coronenes can be obtained by controlling the fusing and sublimation temperatures. The crystal structure of the dimer phase was analyzed by synchrotron XRD （X-ray diffraction） experiments. It was also found that very bright red light is emitted by irradiating ultra violet light （λ = 350 nm） to the dimer phase. The external and internal quantum yields were determined to be 5.56% and 6.95%, respectively.

关 键 词：Graphene PAH PL LED. 

分 类 号：O484.41[理学—固体物理] Q513[理学—物理]