[1] Tang C W, Vanslyke S A. Organic electroluminescent diodes[J]. Applied Physics Letters, 51, 913-915(1987).
[5] Gu G, Shen Z L, Burrows P E et al. Transparent flexible organic light-emitting devices[J]. Advanced Materials, 9, 725-728(1997).
[6] Heil H, Rodriguez L, Burkhart B et al. High-performance OLED materials[J]. SID Symposium Digest of Technical Papers, 45, 495-497(2014).
[8] Baldo M A. O'Brien D, You Y J, et al. Highly efficient phosphorescent emission from organic electroluminescent devices[J]. Nature, 395, 151-154(1998).
[9] Mulder C L, Celebi K, Milaninia K M et al. Saturated and efficient blue phosphorescent organic light emitting devices with Lambertian angular emission[J]. Applied Physics Letters, 90, 211109(2007).
[11] Xia J C, Liang X, Yan Z P et al. Iridium(III) phosphors with bis(diphenylphorothioyl)amide ligand for efficient green and sky-blue OLEDs with EQE of nearly 28%[J]. Journal of Materials Chemistry C, 6, 9010-9016(2018).
[12] Okada S, Iwawaki H, Furugori M et al. High-efficiency RED organic light emitting material and device based on triplet emission with Ir complex[J]. SID Symposium Digest of Technical Papers, 33, 1360-1363(2002).
[13] Holder E, Langeveld B, Schubert U. New trends in the use of transition metal-ligand complexes for applications in electroluminescent devices[J]. Advanced Materials, 17, 1109-1121(2005).
[14] Lee S C, Kim Y S. Synthesis and photophysical studies of new blue phosphorescent iridium complexes of fluorinated 2-phenyl-4-methoxypyridine[J]. Molecular Crystals and Liquid Crystals, 491, 209-216(2008).
[15] Wu L L, Yang C, Sun I et al. Photophysical and electrochemical properties of blue phosphorescent iridium(III) complexes[J]. Organometallics, 26, 2017-2023(2007).
[18] Ahn S Y, Ha Y. Pyridyltriazole as a main ligand in the iridium complexes for blue phosphorescence[J]. Molecular Crystals and Liquid Crystals, 520, 68-74(2010).