Confinement of triplet energy on phosphorescent molecules for highly-efficient organic blue-light-emitting devices

S Tokito, T Iijima, Y Suzuri, H Kita, T Tsuzuki… - Applied physics …, 2003 - pubs.aip.org
We have significantly improved the emission efficiency in an organic light-emitting device
(OLED) based on iridium (III) bis [(4, 6-di-fluoropheny)-pyridinato-N, C2′] picolinate (FIrpic) …

High efficiency blue phosphorescent organic light-emitting device

N Chopra, J Lee, Y Zheng, SH Eom, J Xue… - Applied Physics …, 2008 - pubs.aip.org
We have demonstrated a substantial enhancement in the efficiency of iridium (III) bis [(4, 6-di-
fluorophenyl)-pyridinate-N, C 2′] picolinate based blue phosphorescent organic light …

White phosphorescent organic light-emitting devices with dual triple-doped emissive layers

SH Eom, Y Zheng, E Wrzesniewski, J Lee… - Applied physics …, 2009 - pubs.aip.org
We demonstrate high efficiency white organic light-emitting devices with two adjacent
emissive layers each doped with three phosphorescent emitters (blue, green, and red) …

High luminous efficiency blue organic light-emitting devices using high triplet excited energy materials

D Tanaka, Y Agata, T Takeda… - Japanese Journal of …, 2007 - iopscience.iop.org
We succeeded to fabricate highly efficient blue organic light-emitting devices (OLEDs) by
using a phosphorescent emitter, iridium (III) bis [(4, 6-di-fluorophenyl)-pyridinate-N, C 2'] …

Using an organic molecule with low triplet energy as a host in a highly efficient blue electrophosphorescent device

C Fan, L Zhu, T Liu, B Jiang, D Ma, J Qin… - Angewandte …, 2014 - Wiley Online Library
To achieve high efficiencies in blue phosphorescent organic light‐emitting diodes
(PhOLEDs), the triplet energies (T1) of host materials are generally supposed to be higher …

Extremely low operating voltage green phosphorescent organic light‐emitting devices

H Sasabe, H Nakanishi, Y Watanabe… - Advanced Functional …, 2013 - Wiley Online Library
Organic light‐emitting devices (OLEDs) are expected to be adopted as the next generation
of general lighting because they are more efficient than fluorescent tubes and are mercury …

Comparing the emissive dipole orientation of two similar phosphorescent green emitter molecules in highly efficient organic light-emitting diodes

P Liehm, C Murawski, M Furno, B Lüssem… - Applied Physics …, 2012 - pubs.aip.org
We investigate the average orientation of the transition dipole moments of two green
phosphorescent emitters Ir (ppy) 3 and Ir (ppy) 2 (acac) embedded in a CBP matrix, using in …

Energy-transfer and light-emission mechanism of blue phosphorescent molecules in guest-host systems

I Tanaka, Y Tabata, S Tokito - Chemical physics letters, 2004 - Elsevier
We investigated the energy-dissipative processes of blue phosphorescent molecules of bis
[(4, 6-difluorophenyl)-pyridinato-N, C2′](picolinate) iridium (III)(FIrpic) doped into two host …

Effects of triplet energies and transporting properties of carrier transporting materials on blue phosphorescent organic light emitting devices

J Lee, N Chopra, SH Eom, Y Zheng, J Xue… - Applied Physics …, 2008 - pubs.aip.org
We have studied the effects of the hole transporting layers and electron transporting layers
on the device efficiencies of iridium (III) bis [(4, 6-di-fluorophenyl)-pyridinato-N⁠, C 2′] …

High-efficiency white phosphorescent organic light-emitting devices with greenish-blue and red-emitting layers

S Tokito, T Iijima, T Tsuzuki, F Sato - Applied Physics Letters, 2003 - pubs.aip.org
We demonstrate high-efficiency white light emission from a phosphorescent organic light-
emitting device with greenish-blue and red emissive layers. Bis {2-[3, 5-bis (trifluoromethyl) …