[EN] C(SP3)-C(SP2) CROSS-COUPLING REACTION OF ORGANOZINC REAGENTS AND HETEROCYCLIC (PSEUDO)HALIDES<br/>[FR] RÉACTION DE COUPLAGE CROISÉ C(SP3)-C(SP2) DE RÉACTIFS D'ORGANOZINC ET DE (PSEUDO)HALOGÉNURES HÉTÉROCYCLIQUES
申请人:UNIV HONG KONG SCI & TECH
公开号:WO2018019291A1
公开(公告)日:2018-02-01
Provided is a method of synthesizing a C(sp3)-C(sp2) cross-coupled compound comprising reacting a C(sp3) coupling partner with a C(sp2) coupling partner, a catalyst, and a solvent; wherein the C(sp3) coupling partner comprises an organic zinc reagent; and wherein the C(sp2) coupling partner comprises a heterocyclic halide or a heterocyclic pseudo halide. The method further comprises synthesis of the organic zinc reagent, wherein the synthesis comprises reacting a zinc powder with an acid, filtering, washing, and drying to obtain an activated zinc powder; and reacting the activated zinc powder with a metal iodide catalyst and a second solvent and heating for a predetermined time to obtain the organic zinc reagent.
Influence of molecular structure on the performance of low V<sub>oc</sub> loss polymer solar cells
作者:Ming Wang、Hengbin Wang、Michael Ford、Jianyu Yuan、Cheng-Kang Mai、Stephanie Fronk、Guillermo C. Bazan
DOI:10.1039/c6ta07120a
日期:——
Two regioregular narrow bandgap conjugated polymers (PM1 and PM2) are prepared and their devices exhibit low Voc loss and high short circuit current Jsc, but, most significantly, display improved fill factors compared to previously reported PIPCP.
Five homologous series of α- and α,ω-substitutedoligothiophenes up to an undecamer with branched and linear alkyl chains, respectively, are presented. These series are compared with respect to self-organisation in solution and in solid state. UV/Vis absorption data for the long disubstituted branchedoligothiophenes indicate the formation of aggregates in solution, expressed by a bathochromic shift
Design, synthesis, and characterization of α,ω-disubstituted indeno[1,2-b]fluorene-6,12-dione-thiophene molecular semiconductors. Enhancement of ambipolar charge transport through synthetic tailoring of alkyl substituents
series of indeno[1,2-b]fluorene-6,12-dione-thiophene derivatives with hydrocarbon substituents at α,ω-positions as side groups have been designed and synthesized. The new compounds were fully characterized by 1H/13C NMR, mass spectrometry, cyclic voltammetry, UV-vis absorption spectroscopy, differential scanning calorimetry, thermogravimetric analysis, and melting point measurements. The solid state structure
设计并合成了一系列在α,ω-位为侧基的带有烃基取代基的茚并[1,2 - b ]芴-6,12-二酮-噻吩衍生物。通过1 H / 13 C NMR,质谱,循环伏安,紫外可见吸收光谱,差示扫描量热法,热重分析和熔点测量,对这些新化合物进行了全面表征。茚并[1,2- b]的固态结构基于单晶X射线衍射(XRD)已经鉴定了]芴-6,12-二酮受体核。还使用密度泛函理论计算研究了结构和电子性能,发现它们与实验结果非常吻合,并提供了进一步的见解。研究了烷基链大小和取向对新型半导体的光电性能,分子间内聚力,薄膜微结构和电荷传输性能的详细影响。两种新的可溶液处理的半导体2EH-TIFDKT和2OD-TIFDKT通过以下方式沉积为薄膜通过X射线衍射(XRD)和原子力显微镜(AFM)研究了固溶剪切,滴铸和液滴固定结晶方法及其形态和微观结构。基于溶液处理的薄膜晶体管2EH-TIFDKT和图20D-TIFDKT显示出与电子和空穴迁移率高达双极设备操作为0
Syntheses and solar cell applications of conjugated copolymers containing tetrafluorophenylene units
作者:Jinwoo Kim、Taehyo Kim、Nam Hee Kim、Juae Kim、Joo Young Shim、Il Kim、Ho Hwan Chun、Jin Young Kim、Jong Sung Jin、Jong Pil Kim、Euh Duck Jeong、Hongsuk Suh
DOI:10.1016/j.polymer.2015.06.052
日期:2015.8
Novel conjugated copolymers containing tetrafluorophenylene unit have been synthesized and evaluated in bulk heterojunction solar cell. The tetrafluorophenylene unit, as the strong electron deficient moeity, has been applied for the syntheses of donor-acceptor type copolymers with a narrow-band-gap for bulk heterojunction solar cells. DTBT, tetrafluorophenylene and four types of BDT derivatives as the
含四氟亚苯基单元的新型共轭共聚物已经合成并在本体异质结太阳能电池中进行了评估。四氟苯撑单元作为强电子缺陷部分,已被用于合成具有窄带隙的供体-受体型共聚物,用于整体异质结太阳能电池。DTBT,tetrafluorophenylene和四种类型的BDT衍生物作为富电子单元使用的Stille聚合,以生成结合PE-BDTF,PO-BDTF,PE-BDTTF和PO-BDTTF。引入甚至1%的四氟亚苯基单元代替BDTDTBT型聚合物的DTBT导致聚合物带隙的显着降低。带有PO-BDTF:PC 71 BM(1:1)的设备显示的开路电压(V OC)为0.75 V,短路电流(J SC)为11.80 mA / cm 2,填充系数(FF))为0.59,则PCE为5.22%。