M. A. Baldo et al., “Highly efficient phosphorescent emission from organic electroluminescent deives,” Nature, vol. 395, pp. 151-154. (1998). |
M.A. Baldo et al., “Very high-efficiency green organic ligh-emitting devices based on electrophosphorescence”, Applied Physics Letters, vol. 75, No. 1, pp. 4-6 (1999). |
C. Adachi et al., “Nearly 100% Internal Phosphorescence Efficiency in an Organic Light Emitting Device”, J. Appl. Phys., vol. 90, No. 10, pp. 5048-5051 (2001). |
H. J. A. Dartnall et al., “Human Visual Pigments: Microspectrophotometric Results from the Eyes ofSeven Persons,” Proc. R. Soc. Lond. B, vol. 220, pp. 115-130 (1983). |
U. S. patent application Ser. No. 10/173,682 to Forrest et al. |
U.S. patent application Ser. No. 09/931,948 to Lu et al. |
U.S. patent application Ser. No. 10/233,470 to Shtein et al. |
M.P. Singh et al., “Synthetic Utility of Catalytic Fe(III)/Fe(II) Redox Cycling Towards Fused Hetercycles: A Facile Access to Substituted Benzimidazole, Bis-benzimidazole and Imidazopyridine Derivatives,” Synthesis 2000, No. 10, pp. 1380-1390. |
Igarashi et al., U.S. patent application Publication No. 2001/0019782, published Sep. 6, 2001. |
S. Lamansky et al., “Synthesis and Characterization of Phosphorescent Cyclometalated Iridium Complexes,” Inorganic Chemistry, vol. 40, No. 7, pp. 1740-1711 (2001). |
R. C. Kwong et al., “High Operational Stability of Electrophosphorescent Devices,” Applied Physics Letters, vol. 81 No. 1, pp. 162-164 (2002). |
S. Lamansky et al., “Highly Phosphorescent Bis-Cyclometalated Iridium Complexes: Synthesis, Photophysical Characterization, and Use in Organic Light Emitting Diodes,” J. Am. Chem. Soc., vol. 123, No. 18, pp. 4304-4312 (2001). |