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Thermal change of Alq3, tris(8-hydroxyquinolinato) aluminum(III) studied by TG and XRD-DSC |
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| Authors: | M H Wang Y Sawada K Saito S Horie T Uchida M Ohtsuka S Seki S Kobayashi T Arii A Kishi T Takahashi Y Nishimoto T Wakimoto K Monzen I Kashima T Nishikiori L X Sun R Ozao |
| Institution: | (1) Tokyo Polytechnic University, 1583 Iiyama, Atsugi, Kanagawa 243-0297, Japan;(2) Rigaku Corp., 3-9-12 Matsubara, Akishima, Tokyo 196-8666, Japan;(3) Kanagawa University, 2946 Tsuchiya, Hiratsuka, Kanagawa 259-1293, Japan;(4) Optrex Co., 1150 Hazawa, Kanagawa, Yokohama 211-0863, Japan;(5) Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China;(6) SONY Institute of Higher Education, 428 Nurumizu, Atsugi, Kanagawa 243-8501, Japan |
| Abstract: | The thermal change of the tris(8-hydroxyquinolinato)aluminum (Alq3) is currently investigated by XRD-DSC and TG. The phase transition of Alq3 from α-phase to γ-phase takes place at 643–669 K. A very sharp peak with the peak temperature at approx. 709 K is ascribed to the melting of the Alq3. The decomposition of the Alq3 was observed accompanied with the melting and evaporation at >703K. The effect of the atmospheres on the mass loss procedure was studied by TG. It was found that thermal process of Alq3 was strongly influenced by the partial pressure of water vapor in the atmosphere instead of oxygen. |
| Keywords: | Alq3 mass loss phase change TG XRD-DSC |
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