화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2013년 가을 (10/23 ~ 10/25, 대구 EXCO)
권호 19권 2호, p.1978
발표분야 재료
제목 Light-emitting electrochemical cells employing cationic iridium complexes with green and yellow light emission
초록 Light-emitting electrochemical cells (LECs) are optoelectronic devices consisting of a single active component of either ionic transition metal complex (iTMC) or inorganic salt incorporated conjugated polymer which produces light under the application of external electric field. Herein, green and yellow light emitting phosphorescent iridium complexes with 5-methyl-1,10-phenanthroline as the ancillary ligand were synthesized and characterized for the fabrication of LEC devices. The photophysical and electrochemical properties of the resulting complexes were investigated by means of UV-visible absorption, fluorescence spectroscopy and cyclic voltammetry. The electroluminescent properties of LECs were investigated which results in a maximum luminance of 2430 and 1549 cd m-2 for complex 1 and 2 respectively. LECs incorporating these heteroleptic complexes are effectively tuned the emission color through the meticulous selection of cyclometalated ligands and displayed highly luminescent green and yellow electroluminescence.
저자 수네쉬 CD, 최영선
소속 부산대
키워드 Optoelectronic Devices; Iridium Complexes; Phosphorescent; Electroluminescence
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