Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Theodore X. Zhou"'
Publikováno v:
Journal of Applied Physics. 87:3080-3085
We optimize transparent organic light emitting devices (TOLEDs) using compound cathodes consisting of a thermally evaporated metal contact layer capped with indium–tin–oxide (ITO). The ITO is sputtered at rates of up to 1.6 A/s using a high power
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 17:2975-2981
We demonstrate a scheme to pattern vacuum-deposited, small molecular weight organic light emitting diodes (OLEDs). Both the organic thin films and the metallic electrodes are patterned by shifting the position of a single shadow mask which accompanie
Autor:
Michael Hack, Mark A. Rothman, M. H. Lu, Theodore X. Zhou, Raymond Kwong, Michael S. Weaver, Julie J. Brown
Publikováno v:
Applied Physics Letters. 81:3921-3923
Based on theoretical arguments that top-emitting organic light-emitting devices (TOLEDs) can be more efficient than equivalent bottom-emitting devices, we fabricated TOLEDs comprising reflective anodes and transparent compound cathodes that emit 20.8
Autor:
Kamala Rajan, Michael S. Weaver, Mark E. Thompson, Tan Ngo, Raymond Kwong, Michael Hack, Yeh-Jiun Tung, Lech Michalski, Julie J. Brown, Theodore X. Zhou, Stephen R. Forrest, Matthew R. Nugent
Publikováno v:
Applied Physics Letters. 81:162-164
Electrophosphorescent devices with fac-tris(2-phenylpyridine)iridium as the green emitting dopant have been fabricated with a variety of hole and exciton blocking materials. A device with aluminum(III)bis(2-methyl-8-quinolinato)4-phenylphenolate (BAl
Publikováno v:
SID Symposium Digest of Technical Papers. 31:519-521
A high contrast OLED display technology has been developed using Luxell's BlackLite™ technology integrated with UDC's transparent cathode structure. This structure demonstrates the potential of achieving an OLED display with low reflectivity, enhan
Publikováno v:
Applied Physics Letters. 76:2493-2495
We investigate the continuous operating lifetime of organic light emitting devices (OLEDs) using the phosphorescent dopant, 2,3,7,8,12,13,17,18-octaethyl-21H,23H-porphine platinum (II) as the light emitting molecule. We characterize devices based on
Autor:
Michael Hack, Anna B. Chwang, Julie J. Brown, Michael S. Weaver, Raymond Kwong, Yeh-Jiun Tung, Theodore X. Zhou, Min-Hao M. Lu
Publikováno v:
SPIE Proceedings.
High-efficiency electrophosphorescent organic light emitting devices (OLEDs), based on triplet emission, is an enabling technology for low power full-color OLED displays. In addition, top emission OLED architectures can be used to maximize display ap
Autor:
Peter I. Djurovich, Marc A. Baldo, Chihaya Adachi, Lech Michalski, Stephen R. Forrest, Kamala Rajan, Paul E. Burrows, Sergey Lamansky, Drew Murphy, Mark E. Thompson, Julie J. Brown, Theodore X. Zhou, Feras Abdel-Razaq
Publikováno v:
SPIE Proceedings.
We have fabricated saturated red, orange, yellow and green OLEDs, utilizing phosphorescent dopants. Using phosphorescence based emitters we have eliminated the inherent 25% upper limit on emission observed for traditional fluorescence based systems.
Publikováno v:
Light-Emitting Diodes: Research, Manufacturing, and Applications II.
Small-molecule-based organic light emitting devices (OLEDs) have been shown to have the brightness, range of colors and operating lifetime to be useful in full-color flat panel display applications. Recent technological advances have created exciting
Publikováno v:
Applied Physics Letters. 86:021107
An electrophosphorescent organic light-emitting device (PHOLED™) employing fac-tris(2-phenylpyridine)iridium [Ir(ppy)3] as the green emitting phosphor has been fabricated using a pilot-production organic vapor phase deposition (OVPD™) system. Hig