Two- and three-blade propeller-shaped bis- and tris(ferrocenyl) derivatives of benzodithiophene and benzotrithiophene are synthesized through one-pot multiple thioannulation reactions. The synthesis of the parent benzotrithiophene in a good yield with a short reaction time is also achieved. The presence of the third ferrocenyl moiety drastically changes the intensity of the UV/Vis absorptions.
One-pot Synthesis of Benzo[<i>b</i>]thiophenes and Benzo[<i>b</i>]selenophenes from <i>o</i>-Halo-Substituted Ethynylbenzenes: Convenient Approach to Mono-, Bis-, and Tris-Chalcogenophene-Annulated Benzenes
procedure for the synthesis of benzo[b]thiophenes and selenophenes from readily available o-halo-ethynylbenzene precursors is described. Regardless of the substituent on the acetylene terminus or the number of cyclization moieties on the precursors, various benzo[b]thiophenes and selenophenes, including not only the parent, alkyl-, and phenyl-substituted derivatives but also benzo[1,2-b:4,5-b′]dithiophenes
描述了一种方便的一锅法,用于从容易获得的邻卤代乙炔基苯前体合成苯并[ b ]噻吩和硒代苯。不论乙炔末端上的取代基或前体上的环化部分数量如何,各种苯并[ b ]噻吩和硒代苯不仅包括母体,烷基和苯基取代的衍生物,而且还包括苯并[1,2- b]可以高产率地制备: 4,5- b ′]二噻吩和二硒吩和苯并[1,2- b: 3,4- b ′:5,6 - b ′′]三噻吩和三硒吩。
Benzotrithiophene-Based Hole-Transporting Materials for 18.2 % Perovskite Solar Cells
New star‐shaped benzotrithiophene (BTT)‐basedhole‐transportingmaterials (HTM) BTT‐1, BTT‐2 and BTT‐3 have been obtained through a facile synthetic route by crosslinking triarylamine‐based donor groups with a benzotrithiophene (BTT) core. The BTT HTMs were tested on solution‐processed lead trihalide perovskite‐basedsolarcells. Power conversion efficiencies in the range of 16 % to 18.2 % were achieved
[EN] CHARGE TRANSPORTING MATERIAL FOR OPTOELECTRONIC AND/OR PHOTOELECTROCHEMICAL DEVICES<br/>[FR] MATÉRIAU DE TRANSPORT DE CHARGE POUR DISPOSITIFS OPTO-ÉLECTRONIQUES ET/OU PHOTO-ÉLECTROCHIMIQUES
申请人:ECOLE POLYTECHNIQUE FED DE LAUSANNE (EPFL)
公开号:WO2017098455A1
公开(公告)日:2017-06-15
The present invention relates to an optoelectronic and/or photoelectrochemical device comprising at least one organic-inorganic perovskite as sensitizer and at least one compound of formula (I) comprising one benzotrithiophene core Q, wherein each thiophene ring of said core is substituted by at least one heteroaromatic polycyclic system D being selected from a monocyclic system or a polycyclic system comprising fused aromatic rings or conjugated monocyclic aromatic rings comprising heteroatoms (O, S, Se and N) and being further substituted.