Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Denis Y. Kondakov"'
Publikováno v:
SID Symposium Digest of Technical Papers. 44:678-681
Currently, solution-processed OLED displays are believed to have a significant cost advantage over conventional evaporated OLED displays. However, the nature of the fabrication process for the solution-processed device results in important difference
Autor:
Ralph H. Young, Denis Y. Kondakov, David J. Giesen, Thomas D. Pawlik, Seth B. Harkins, Steven C. Switalski, Joseph Charles Deaton, Seth F. Mickenberg, Jonas C. Peters, Alexander J. M. Miller
Publikováno v:
Journal of the American Chemical Society. 132:9499-9508
A highly emissive bis(phosphine)diarylamido dinuclear copper(I) complex (quantum yield = 57%) was shown to exhibit E-type delayed fluorescence by variable temperature emission spectroscopy and photoluminescence decay measurement of doped vapor-deposi
Autor:
Thomas N. Blanton, William C. Lenhart, Denis Y. Kondakov, Manju Rajeswaran, Brian Antalek, Thomas D. Pawlik, David J. Giesen, Nicholas Zumbulyadis, Ching Wan Tang, Steven C. Switalski, Ralph H. Young
Publikováno v:
Polyhedron. 28:835-843
The interest in organic materials for use in organic light-emitting diodes (OLEDs) began with the pioneering report of efficient green electroluminescence from Alq3, tris(quinolin-8-olato)aluminum(III), by Tang and Van Slyke [C.W. Tang, S.A. Van Slyk
Autor:
Ralph H. Young, Denis Y. Kondakov, David J. Giesen, Thomas D. Pawlik, Joseph Charles Deaton, Marina E. Kondakova, Chris Brown
Publikováno v:
SID Symposium Digest of Technical Papers. 38:837-840
We demonstrate high-efficiency, low-voltage phosphorescent OLED devices (PHOLEDs) using mixed host materials in the light-emitting layer (LEL) and novel formulations in the electrontransporting/ electron-injecting layers (ETL/EIL). The LEL architectu
Autor:
Ralph H. Young, Liang-Sheng Liao, Kevin P. Klubek, J. Ramon Vargas, Denis Y. Kondakov, Chris Brown, Viktor V. Jarikov
Publikováno v:
SID Symposium Digest of Technical Papers. 38:1188-1192
Aggregating PAHs of the perylene class are useful as LEL additives. They greatly improve the device operating half-life up to 1,000,000 h at the initial luminance of 1540 cd/m2 (20 mA/cm2). There appear to be at least three factors in the lifetime in
Autor:
Denis Y. Kondakov
Publikováno v:
Philosophical transactions. Series A, Mathematical, physical, and engineering sciences. 373(2044)
Studies of delayed electroluminescence in highly efficient fluorescent organic light-emitting diodes (OLEDs) of many dissimilar architectures indicate that the triplet–triplet annihilation (TTA) significantly increases yield of excited singlet stat
Publikováno v:
Journal of Applied Physics. 93:1108-1119
Organic light-emitting diodes (OLEDs) are attractive for display applications because of their high brightness, low driving voltage, and tunable color. Their operating lifetimes, hundreds or thousands of hours, are sufficient for only a limited range
Autor:
Denis Y. Kondakov
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :953-960
Pyrazolotriazole (PT) azomethine dyes in the S1 electronic state were studied by emission spectroscopy and ab initio CI-singles and MCSCF methods. Electronically excited molecules are predicted to follow a barrierless relaxation trajectory involving
Publikováno v:
SID Symposium Digest of Technical Papers. 38:1494-1496
Based on the observed changes in chemical compositions of fluorescent and phosphorescent carbazole-derived OLEDs during operation, the operational degradation mechanism is proposed. Substantial losses of chemical components, identification of degrada