White light from an electroluminescent diode made from poly[3(4‐octylphenyl)‐2,2′‐bithiophene] and an oxadiazole derivative
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منابع مشابه
Red Phosphorescent Organic Light-Emitting Diodes Using Mixture System of Small-Molecule and Polymer Host
We study two types of polymer materials, poly(n-vinylcarbazole) (PVK) and starburst small-molecule 1,3,5-tris[4(diphenylamino)phenyl]benzene (TDAPB), as the host for electrophosphorescent organic light-emitting diodes (PHOLEDs) doped with red-emitting phosphor tris(1-phenylisoquinoline) iridium (III) [Ir(piq)3]. PHOLEDs employed a PVK and TDAPB blend as the host exhibited a maximum red light em...
متن کامل5,5′-Di-4-pyridyl-2,2′-(5-tert-butyl-m-phenylene)bis(1,3,4-oxadiazole)
The title compound, C(24)H(20)N(6)O(2), is a novel 1,3,4-oxadiazole derivative which has potential as an electron-transporting material in organic electroluminescent (EL) devices. In the crystal, the mol-ecular framework is almost planar with an r.m.s. deviation of 0.091 (4) Å and it exists in an E form. Intra-molecular C-H⋯O and C-H⋯N hydrogen bonds are observed between the benzene and 1,3,4-o...
متن کاملElectroluminescence and electrical transport in poly(3-octylthiophene) diodes
We report visible light emission from diodes made from poly( 3-octylthiophene). Use of a soluble derivative of polythiophene allows fabrication of the light emitting diodes by casting the polymer film from solution with no subsequent processing or heat treatment required. The devices emit dim red-orange light with relatively low external quantum efficiencies, below 2.5~ 10M5 photons per electro...
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In this study, we investigate the keys to obtain a sensitive ammonia sensor with high air stability by using a low-cost polythiophene diode with a vertical channel and a porous top electrode. Poly(3-hexylthiophene) (P3HT) and air-stable poly(5,5'-bis(3-dodecyl-2-thienyl)-2,2'-bithiophene) (PQT-12) are both evaluated as the active sensing layer. Two-dimensional current simulation reveals that th...
متن کاملTemperature dependence of electronic energy transfer from a polymer host to a triplet emitter in light emitting diode materials
We investigate the temperature dependence of electronic energy transfer between a polymer host, poly(N-vinylcarbazole) blended with 2-(4-biphenylyl)-5-(4-tert-butylphenyl)-1,3,4-oxadiazole, and the triplet emitter tris[9,9-dihexyl2-(phenyl-40-(pyridin-200-yl))fluorene] iridium(III) (Ir(DPPF)3). The photophysics of the blend are similar to those of neat poly(N-vinylcarbazole), with two emitting ...
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تاریخ انتشار 2012