Synthesis and Characterization of a Light-Emitting Poly(p-phenylenevinylene)-Based Copolymer Containing 1,3,4-Oxadiazole Functionality
摘要:
A new class of high brightness and luminance efficiency of poly[2-{4-[5-(3-(3, 7-dimethyloctyloxy)phenyl)-1,3,4-oxadiazole-2-yl]phenyl}-1,4-phenylenevinylene] (C(10)PhOxa-PPV) was synthesized by Gilch polymerization. The weight average molecular weight (Mw) and the polydispersity of C(10)PhOxa-PPV were found to be 2.7 x 10(4) and 2.6, respectively. Double-layer light-emitting device with an ITO/ PEDOT/C(10)PhOxa-PPV/Al was fabricated and characterized. The maximum brightness, and luminance efficiency of C(10)PhOxa-PPV showed values of up to 8.3 cd/A and 4,426 cd/m(2), respectively.
Synthesis and Characterization of a Light-Emitting Poly(p-phenylenevinylene)-Based Copolymer Containing 1,3,4-Oxadiazole Functionality
摘要:
A new class of high brightness and luminance efficiency of poly[2-{4-[5-(3-(3, 7-dimethyloctyloxy)phenyl)-1,3,4-oxadiazole-2-yl]phenyl}-1,4-phenylenevinylene] (C(10)PhOxa-PPV) was synthesized by Gilch polymerization. The weight average molecular weight (Mw) and the polydispersity of C(10)PhOxa-PPV were found to be 2.7 x 10(4) and 2.6, respectively. Double-layer light-emitting device with an ITO/ PEDOT/C(10)PhOxa-PPV/Al was fabricated and characterized. The maximum brightness, and luminance efficiency of C(10)PhOxa-PPV showed values of up to 8.3 cd/A and 4,426 cd/m(2), respectively.
An efficient strategy for the nickel-catalysed synthesis of biaryls and terphenyls has been developed in environmentally-friendly reaction media. In the presence of β-diketone and PPh3 ligands, Ni(TFA)2 acted as an effective catalyst for the Suzuki–Miyaura cross-coupling of aryl halides and arylboronic acids in an ionic liquid solution. Biaryls and terphenyls were obtained in good yields under this
Switching between mono and doubly reduced odd alternant hydrocarbon: designing a redox catalyst
作者:Jasimuddin Ahmed、Paramita Datta、Arpan Das、Stephy Jomy、Swadhin K. Mandal
DOI:10.1039/d0sc05972b
日期:——
orbital (HMO) calculations in 1950, it has been well known that the odd alternant hydrocarbon (OAH), the phenalenyl (PLY) system, can exist in three redox states: closed shell cation (12π e−), mono-reduced open shell neutral radical (13π e−) and doubly reduced closed shell anion (14π e−). Switching from one redox state of PLY to another leads to a slight structural change owing to its low energy of disproportionation
A metallic composite in which a conjugated compound having a molecular weight of 200 or more is adsorbed to a metallic nanostructure having an aspect ratio of 1.5 or more, for example, a metallic composite in which a compound having a group represented by the formula (I) or a repeating unit represented by the formula (II) or both of them is adsorbed to a metallic nanostructure having an aspect ratio of 1.5 or more, is useful for electronic devices such as a light-emitting device, a solar cell and an organic transistor.
Palladium-Catalyzed Borylation of Aryl Chlorides: Scope, Applications, and Computational Studies
作者:Kelvin L. Billingsley、Timothy E. Barder、Stephen L. Buchwald
DOI:10.1002/anie.200701551
日期:2007.7.9
SILVER-(CONJUGATED COMPOUND) COMPOSITE
申请人:Iijima Takayuki
公开号:US20120168693A1
公开(公告)日:2012-07-05
A silver-(conjugated compound) composite comprising silver particles having a number-average Feret diameter of not more than 1,000 nm, and a conjugated compound having a weight-average molecular weight of not less than 3.0×10
2
adsorbed to the silver particles. The composite exhibits excellent conductivity and charge injection properties, and excellent dispersibility within non-polar solvents.