Abstract:
A monomer of formula (III): wherein X is a polymerisable group Ar, Ar 1 and Ar 2 each independently represent an optionally substituted aryl or heteroaryl group; R 1 represents H or a substituent; and Z represents a direct bond or a divalent linking atom or group, wherein Ar 1 and Ar 2 are linked by a single bond or a divalent linking group selected from CR 1 R 2 , SiR 1 R 2 , PR 1 , NR 1 , O and S wherein R 1 and R 2 are independently selected from hydrogen; optionally substituted alkyl wherein one or more non-adjacent C atoms may be replaced with O, S, N, C=O and -COO-; alkoxy, aryl, arylalkyl, heteroaryl and heteroarylalkyl. Ar 1 and Ar 2 are preferably linked by an oxygen atom, and Ar 1 and / or Ar 2 may be fused to their respective adjacent Ar groups. Ar 1 and its adjacent Ar group and / or Ar 2 and its adjacent Ar group are optionally fused to form a fluorene unit.
Abstract translation:式(III)的单体:其中X是可聚合基团Ar,Ar 1和Ar 2各自独立地表示任选取代的芳基或杂芳基; R1表示H或取代基; Z表示直接键或二价连接原子或基团,其中Ar 1和Ar 2通过单键或选自CR 1 R 2,SiR 1 R 2,PR 1,NR 1,O和S的二价连接基团连接,其中R 1和R 2独立地选自 氢; 任选取代的烷基,其中一个或多个不相邻的C原子可被O,S,N,C = O和-COO-取代; 烷氧基,芳基,芳基烷基,杂芳基和杂芳基烷基。 Ar 1和Ar 2优选通过氧原子连接,并且Ar 1和/或Ar 2可以与它们各自相邻的Ar基团稠合。 Ar1及其相邻的Ar基团和/或Ar 2及其相邻的Ar基团任选地被稠合以形成芴单元。
Abstract:
Disclosed are new semiconductor materials prepared from dithienylvinylene copolymers with aromatic or heteroaromatic p-conjugated systems. Such copolymers, with little or no post-deposition heat treatment, can exhibit high charge carrier mobility and/or good current modulation characteristics. In addition, the polymers of the present teachings can possess certain processing advantages such as improved solution- processability and low annealing temperature.
Abstract:
The present invention relates to polymers comprising a repeating unit of the formula I, or III and their use as organic semiconductor in organic devices, especially an organic field effect transistor (OFET), or a device containing a diode and/or an organic field effect transistor. The polymers according to the invention have excellent solubility in organic solvents and excellent film-forming properties. In addition, high efficiency of energy conversion, excellent field-effect mobility, good on/off current ratios and/or excellent stability can be observed, when the polymers according to the invention are used in organic field effect transistors.
Abstract:
A process for the preparation of a substituted 2,2'-dithiophene is described, which process comprises the steps (a), (c) and optional steps (b) and (d): a) reaction of a compound of the formula: (IV) wherein Hal stands for hydrogen or halogen, especially Br, R1 and R1' indepently are hydrogen or a substituent, n ranges from 0 to 6, preferably being 0; Y, if present, is substituted or unsubstituted phenylene, thiene, 1,2-ethylene, or is 1,2- ethinylene; R2 and R2' indepently are hydrogen or are selected from C 1 -C 25 alkyl, C 3 -C 12 cycloalkyl, C 4 - C 25 aryl, C 5 -C 25 alkylaryl or C 5 -C 25 aralkyl, each of which is unsubstituted or substituted; with a suitable lithium organic compound, preferably Li-alkyl or Li-alkylamide; b) optional exchange of lithium against another metal selected from Mg, Zn and Cu; c) reaction of the metallated intermediate obtained in step (a) or (b) with a suitable electrophil, which is CO 2 or an aldehyde (addition reaction), or a compound Y'-R17 or Y'-R18-Z (substitution reaction), where R17 and R18 are as defined in claim 1; and optionally d) modification of the product obtained in step (c), e.g. by introducing one or more conjugating moieties Y as defined above, ring closure between suitable monovalent residues R17, exchange or extension of functional groups or substituents such as addition to carbonyl or substitution of carbonyl in R17 or R18. The products, including or corresponding polymers, are excellent conducting materials, e.g. for application in organic field effect transistors, integrated circuits, thin film transistors, displays, RFID tags, electro- or photoluminescent devices, displays, photovoltaic or sensor devices, charge injection layers, Schottky diodes, memory devices, planarising layers, antistatics, conductive substrates or patterns, photoconductors, or electrophotographic applications or recording materials.
Abstract:
Described herein are compositions including heterocyclic organic compounds. More specifically, described herein are bicyclic thiadiazole-based compounds that are combined with fused thiophenes structures, along with methods for making such compounds, and uses thereof.
Abstract:
Nanoparticle compositions comprising nanoparticles formed from π-conjugated cross- linked polymers are disclosed, together with their methods of manufacture and their applications. Owing to the nature of the cross-links formed therein, the nanoparticle compositions afford a high degree of manufacturing flexibility and control, as well as being amenable to facile purification for the purpose of imaging and electronics applications.