对于有机场效应晶体管(OFET)应用,研究了四种供体-受体(D-A)型有机半导体,它们由5-己基噻吩与噻吩/呋喃侧苯并噻二唑/萘噻二唑组成。尽管呋喃是噻吩的类似物,但由于其与噻吩的性质不同以及光化学氧化的不稳定性,它在有机电子领域的关注较少。但是,这项研究确定呋喃可以显示与其类似物相当的电荷传输性质。研究了带有苯并基和不同杂原子侧翼基团的电子接受噻二唑核的扩展,表明OFET的性能取决于分子轨道,几何形状和堆积。底栅底接触装置的配置用于研究所有分子的OFET传输性质。我们成功地证明了呋喃单元是一种有希望的流动性构建基块(μ最大)的0.0122厘米2 V -1小号-1用于使用设备呋喃基取代的苯并噻二唑作为沟道层。
HIGHLY-FLUORESCENT AND PHOTO-STABLE CHROMOPHORES FOR ENHANCED SOLAR HARVESTING EFFICIENCY
申请人:NITTO DENKO CORPORATION
公开号:US20130074927A1
公开(公告)日:2013-03-28
The invention provides highly fluorescent materials comprising a single (n=0) or a series (n=1, 2, etc.) of benzo heterocyclic systems. The photo-stable highly luminescent chromophores are useful in various applications, including in wavelength conversion films. Wavelength conversion films have the potential to significantly enhance the solar harvesting efficiency of photovoltaic or solar cell devices.
Correlation between structure and photovoltaic performance of a series of furan bridged donor–acceptor conjugated polymers
作者:Jianyu Yuan、Zhichun Zhai、Jing Li、Jialing Lu、Xiaodong Huang、Zhongjie Xu、Wanli Ma
DOI:10.1039/c3ta12210g
日期:——
A series of donor–acceptor (D–A) polymers based on furan-bridged benzodithiophene and different acceptor blocks were designed and synthesized. By incorporating various acceptors with differing electron-withdrawing abilities into the same polymer backbone, we were seeking to reveal the correlation between molecular structures and the corresponding film morphology as well as photovoltaic performance
PROCESS FOR THE PREPARATION OF BENZOHETERO [1,3] - DIAZOLE COMPOUNDS DISUBSTITUTED WITH HETEOARYL GROUPS
申请人:Schimperna Giuliana
公开号:US20140221663A1
公开(公告)日:2014-08-07
Process for the preparation of a benzohetero[1,3]diazole compound disubstituted with heteroaryl groups which comprises reacting at least one benzohetero[1,3]diazole compound disubstituted with at least one heteroaryl compound. Said benzohetero[1,3]diazole compound disubstituted with heteroaryl groups can be advantageously used in the construction of luminescent solar concentrators (LSC). Furthermore, said benzohetero[1,3]diazole compound disubstituted with heteroaryl groups can be advantageously used in the construction of photovoltaic devices such as, for example, photovoltaic cells, photovoltaic modules, solar cells, solar modules, on both a rigid and flexible support. Said benzohetero[1,3]diazole compound disubstituted with heteroaryl groups can also be advantageously used as a precursor of monomeric units in the preparation of semiconductor polymers.
[EN] PROCESS FOR THE PREPARATION OF BENZOHETERO [ 1, 3 ] - DIAZOLE COMPOUNDS DISUBSTITUTED WITH HETEOARYL GROUPS<br/>[FR] PROCÉDÉ POUR LA PRÉPARATION DE COMPOSÉS BENZOHÉTÉRO[1,3]-DIAZOLE DISUBSTITUÉ PAR DES GROUPES HÉTÉROARYLE
申请人:ENI SPA
公开号:WO2013021315A1
公开(公告)日:2013-02-14
Process for the preparation of a benzohetero [ 1, 3 ] diazole compound disubstituted with heteroaryl groups which comprises reacting at least one benzohetero [ 1, 3 ] diazole compound disubstituted with at least one heteroaryl compound. Said benzohetero [ 1, 3 ] diazole compound disubstituted with heteroaryl groups can be advantageously used in the construction of luminescent solar concentrators (LSC). Furthermore, said benzohetero [ 1, 3 ] diazole compound disubstituted with heteroaryl groups can be advantageously used in the construction of photovoltaic devices such as, for example, photovoltaic cells, photovoltaic modules, solar cells, solar modules, on both a rigid and flexible support. Said benzohetero [ 1, 3 ] diazole compound disubstituted with heteroaryl groups can also be advantageously used as a precursor of monomeric units in the preparation of semiconductor polymers.
C–H Arylation of Unsubstituted Furan and Thiophene with Acceptor Bromides: Access to Donor–Acceptor–Donor-Type Building Blocks for Organic Electronics
作者:Rukiya Matsidik、Johannes Martin、Simon Schmidt、Johannes Obermayer、Florian Lombeck、Fritz Nübling、Hartmut Komber、Daniele Fazzi、Michael Sommer
DOI:10.1021/jo502432e
日期:2015.1.16
Pd-catalyzed direct arylation (DA) reaction conditions have been established for unsubstituted furan (Fu) and thiophene (Th) with three popular acceptor building blocks to be used in materials for organic electronics, namely 4,7-dibromo-2,1,3-benzothiadiazole (BTBr2), N,N'-dialkylated 2,6-dibromonaphthalene-1,4,5,8-bis(dicarboximide) (NDIBr2), and 1,4-dibromotetrafluorobenzene (F4Br2). Reactions with BTBr2, F4Br2, and NDIBr2 require different solvents to obtain high yields. The use of dimethylacetamide (DMAc) is essential for the successful coupling of BTBr2 and F4Br2, but detrimental for NDIBr2, as the electron-deficient NDI core is prone to nucleophilic core substitution in DMAc as solvent but not in toluene. NDIFu(2) is much more planar compared to NDITh2, resulting in an enhanced charge-transfer character, which makes it an interesting building block for conjugated systems designed for organic electronics. This study highlights direct arylation as a simple and inexpensive method to construct a series of important donor-acceptor-donor building blocks to be further used for the preparation of a variety of conjugated materials.