Zobrazeno 1 - 10
of 14
pro vyhledávání: '"William James Begley"'
Publikováno v:
Polyhedron. 26:3653-3660
The X-ray crystal structures of a series of lithium quinolates – lithium 8-hydroxyquinolinate (Liq), lithium 2-methyl-8-hydroxyquinolinate (MeLiq), and 2-phenyl-8-hydroxquinolinate (PhLiq), are compared. The substitution at the 2-position of the 8-
Autor:
Chris Brown, William James Begley, Viktor V. Jarikov, Lelia Cosimbescu, Margaret Jones Helber, Kevin P. Klubek, J. Ramon Vargas, Tukaram K. Hatwar, Scott R. Conley, Michele Lee Ricks, Liang-Sheng Liao
Publikováno v:
SID Symposium Digest of Technical Papers. 38:830-833
We report developments in materials and formulations for blue, green, and red fluorescent OLEDs that provide lifetimes exceeding 15,000 h for a model display operating at 200 cd/m2 with a polarizer. In addition, we describe improvements in electron t
Publikováno v:
SID Symposium Digest of Technical Papers. 38:1286-1289
A new electron-injecting layer (EIL) for increasing the efficiency and lowering the power consumption of OLED devices has been developed. The performance of this new EIL, in combination new electron-transporting layers (ETLs), will be discussed. Thes
Autor:
William James Begley, Manju Rajeswaran
Publikováno v:
Acta Crystallographica Section E Structure Reports Online. 62:m1200-m1202
The molecule of the title compound, [Li6(C9H6NO)6], is a centrosymmetric hexamer consisting of two stacked ring trimers. In addition to the O atom of the quinolin-8-olate, the quinoline N atom is also involved in coordination to lithium, resultin
Publikováno v:
Frontiers in Optics 2007/Laser Science XXIII/Organic Materials and Devices for Displays and Energy Conversion.
A new electron-injecting layer for increasing the luminance efficiency while lowering the drive voltage of OLED devices has been developed. The performance of the new EIL, in combination with new electron-transporting layers, will be discussed.
Autor:
Margaret Jones Helber, William James Begley, Michelle Lee Ricks, Chris Brown, S. Krishnamurthy, Lelia Cosimbescu, Tukaram K. Hatwar, Jeffrey P. Spindler, J. R. Vargas
Publikováno v:
Organic Light-Emitting Materials and Devices IX.
This paper describes Eastman Kodak Company's commercialization efforts to develop new materials and formulations for monochrome and full-color displays. We have found a new set of materials, and combinations thereof, that improve luminance efficiency
Autor:
Jeffrey P. Spindler, Chris Brown, J. R. Vargas, William James Begley, Tukaram K. Hatwar, Michele Lee Ricks, Lelia Cosimbescu
Publikováno v:
SPIE Proceedings.
We have developed novel formulations through a combination of new materials and a co-dopant/co-host systems approach. These novel formulations offer significant improvements in efficiency, lifetime, and color, which are suitable for fabrication of fu
Publikováno v:
Journal of the Society for Information Display. 18:277
— Electron paramagnetic resonance (EPR) was used as a quantitative method to measure charge carriers that are present in OLED devices under various bias conditions. Charge-transfer reactions that occur at the cathode interface through the interacti
Autor:
William James Begley, N. Bhandari, Xiaofan Ren, Raymond Kesel, YuanQiao Rao, Thomas Richard Cushman, Yuan-Sheng Tyan
Publikováno v:
SID Symposium Digest of Technical Papers. 40:895
A high-efficacy white OLED device is reported. At 1,000 cd/m2, the device showed an efficacy of 56 lm/W. The color at (0.387, 0.389) was within the Energy Star tolerance quadrangle; the CRI at 83.6 exceeded the requirements. The device had a tandem h
Publikováno v:
SID Symposium Digest of Technical Papers. 40:420
We report high-efficiency fluorescent red OLEDs with 11.5% EQE (15 cd/A) at 3 V, and yellow OLEDs with 8.6% EQE (28 cd/A) at 2.9 V. This performance was obtained using a nonemitting assist layer adjacent to the emission layer, and low-voltage electro