[PDF] Top 20 Efficient red electrophosphorescence from a fluorene-based bipolar host material
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Efficient red electrophosphorescence from a fluorene-based bipolar host material
... The onset potentials were determined from the intersec- tion of two tangents drawn at the rising current and back- ground current of the cyclic voltammogram. The EL devices were fabricated through vacuum deposi- ... See full document
6
A Bipolar Host Material Containing Triphenylamine and Diphenylphosphoryl-Substituted Fluorene Units for Highly Efficient Blue Electrophosphorescence
... using a time-correlated photon counting technique that provided a temporal resolution of ...the red tail of the emission of POAPF in ...the red side of the signal (515 nm), only a ... See full document
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Highly efficient red electrophosphorescent device incorporating a bipolar triphenylamine/bisphenylsulfonyl-substituted fluorene hybrid as the host
... result from a common Franck–Condon excited ...to a mechanism involving rapid photoinduced electron transfer between the electron donor (triphenylamine) and the electron acceptor ... See full document
7
A novel fluorene-triphenylamine hybrid that is a highly efficient host material for blue-, green-, and red-light-emitting electrophosphorescent devices
... In contrast to the TFTPA-based devices, the device efficiency of the control mCP-based de- vices improved only slightly as the dopant con- centration increased; the performance of the 7 wt % FIrpic-doped ... See full document
7
Highly efficient red organic light-emitting devices based on a fluorene-triphenylamine host doped with an Os(II) phosphor
... the host material, in addition to higher operation potentials and unsatisfactory power ...describe a highly efficient red-emitting device incorporating a sterically hindered ... See full document
4
An ambipolar host material provides highly efficient saturated red PhOLEDs possessing simple device structures
... ambipolar host D2ACN and the Ir-centered dopant Mpq 2 ...is a spiro-configured donor (D)–acceptor (A) compound (i.e., a dual chromophore), in which electron-rich diphenylamino and ... See full document
4
A solution-processable bipolar molecular glass as a host material for white electrophosphorescent devices
... for efficient confinement of the triplet excitons primarily on the guest, blue-emitting ...built-in bipolar functionalities, arising from the electron-rich TPA core and electron-deficient OXD pendent ... See full document
6
Novel host material for highly efficient blue phosphorescent OLEDs
... is a continuous trend of shifting research directions from fluorescent 2 to phosphorescent ...is based on the con- sideration that phosphorescent emitters can harvest both singlet and triplet ... See full document
7
Phosphine-Oxide-Containing Bipolar Host Material for Blue Electrophosphorescent Devices
... highly efficient FIrpic-based blue electrophosphorescent devices incorporating a novel bipolar host material, PCF, which features diphenylphosphine oxide groups appended to ... See full document
6
Highly efficient electrophosphorescent devices with saturated red emission from a neutral osmium complex
... 16 A host with balanced electron and hole transport abilities will be beneficial for both ...highly efficient blue-emitting conjugated polymer with fluorene backbone and triphenylamine (TPA) ... See full document
5
Novel carbazole/fluorene hybrids: Host materials for blue phosphorescent OLEDs
... off from their peak ...furnish a series of well-characterized carbazole/fluorene (CBZm-Fn) hybrids in high ...of a rigid linkage between the carbazole and fluorene moieties (at the C-9 ... See full document
4
Highly efficient red-electrophosphorescent devices based on polyfluorene copolymers containing charge-transporting pendant units
... only a few percent, which would be far below the optimal value required to obtain a good charge ...In a previous study, we found that PF-OXD, 31 a fluorene-based copolymer ... See full document
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Synthesis of fluorene-based hyperbranched polymers for solution-processable blue, green, red, and white light-emitting devices
... the host emission is almost ...allows efficient emission from the guest mole- ...as a emitting layer shows saturated red emission with k max at 638 nm and CIE coordinates at ... See full document
15
A morphologically stable host material for efficient phosphorescent green and red organic light emitting devices
... After a routine cleaning procedure, the ITO-coated glass was loaded on the grounded electrode of a parallel-plate plasma reactor, pretreated by oxygen plasma, and then coated with a polymerized ... See full document
5
New Host Containing Bipolar Carrier Transport Moiety for High-Efficiency Electrophosphorescence at Low Voltages
... using a vacuum thermal evaporation chamber with a base pressure of ...using a computer-controlled dc power supply and a Spectrascan PR650 photometer at room ..., based on the ... See full document
5
An electron-transporting host material compatible with diverse triplet emitters used for highly efficient red- and green-electrophosphorescent devices
... electron-transporting host material compatible with diverse triplet emitters used for highly efficient red- and green-electrophosphorescent devicesw Tsyr-Yuan Hwu, a Tsung-Cheng Tsai, b Wen-Yi ... See full document
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Triphenylsilyl- and trityl-substituted carbazole-based host materials for blue electrophosphorescence
... effective host and dopant materials for blue phosphorescent OLEDs remains a challenge in OLED ...effective host materials used for blue electrophosphorescence are to satisfy many ... See full document
8
Red fluorenes as the efficient host emitter for non-doped red organic light-emitting diodes
... Crystallinic red fluorophores based on donor-acceptor substituted spirofluorene, ...Non-doped red OLEDs fabricated with PhSPDCV exhibit authentic red (CIE, x = ...saturated red ... See full document
8
Efficient multilayer red fluorescent polymer light-emitting diodes by host and guest blend system
... efficient red PLED achieved by the host–guest emissive layer combined with multi- layer device ...to red PLED. One is polymer host with small molecular red emitter, and the other is ... See full document
5
A fluorene-modified porphyrin for efficient dye-sensitized solar cells
... 4329–4331 A fluorene-modified porphyrin for efficient dye-sensitized solar cellswz Cheng-Hua Wu, a Tsung-Yu Pan, b Shang-Hao Hong, a Chin-Li Wang, a Hshin-Hui Kuo, a Yang-Yun Chu, a ... See full document
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