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[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

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

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

10

Highly efficient red electrophosphorescent device incorporating a bipolar triphenylamine/bisphenylsulfonyl-substituted fluorene hybrid as the host

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

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

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

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

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

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

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

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

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

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

6

Synthesis of fluorene-based hyperbranched polymers for solution-processable blue, green, red, and white light-emitting devices

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

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

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

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

3

Triphenylsilyl- and trityl-substituted carbazole-based host materials for blue electrophosphorescence

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

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 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

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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