BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Memento EPFL//
BEGIN:VEVENT
SUMMARY:Phthalo- and Subphthalocyanines: Supramolecular Chemistry and Mole
 cular Photovoltaics
DTSTART:20191017T160000
DTEND:20191017T170000
DTSTAMP:20260924T150310Z
UID:78fbb1f727d89485238e66ff47b8a1f8385ece0674edc67c6daf4a9f
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Tomás TORRES\nInstitute for Advanced Research in Chemic
 al Sciences\,\nDpt of Organic Chemistry\,\nAutonoma University of Madrid\,
  Spain\nChE-606 - Highlights in Energy Research seminar series\nPhthalocya
 nines (Pcs)[1] are among the few molecules that reveal an intense red and 
 NIR absorption and therefore\, constitute promising dyes in molecular phot
 ovoltaics. Most recently they have reached record efficiency values partic
 ipating as hole transporting materials in Perovskite sensitized solar cell
 s (PSSCs). Phthalocyanines and derivatives stand out as donor /light harve
 sting molecules for the fabrication of both small-molecule organic solar c
 ells and dye-sensitized solar cells (DSSCs). In this regard\, A3B ZnPcs fu
 nctionalized with bulky substituents at three isoindole rings (i.e. A) and
  a highly directional carboxylic acid linker at the other isoindole (i.e. 
 B)\, have reached photovoltaic high power conversion efficiencies in n-typ
 e hybrid devices with mesoporous TiO2.  On the other hand Subphthalocyani
 nes (SubPcs)\, [2] are intriguing compounds. Their 14 pi-electron aromatic
  core associated with their curved structures render them also appealing b
 uilding blocks for the construction of multicomponent photo- or electroact
 ive assemblies. Recently\, SubPcs have been used as non-fullerene acceptor
 s in both single (SHJ) and bulk heterojunctions (BHJ) solar cells. The org
 anization of both Phthalo- and Subphthalocyanines at supramolecular level 
 will be also discussed. Thus\, columnar aggregates based on chiral SubPcs 
 have been prepared\, giving rise to ferroelectric self-assembled molecular
  materials showing both rectifying and switchable conductivity. These chro
 mophores have been incorporated in multicomponent systems showing a panchr
 omatic response and allowing the tuning and controlling intramolecular FÖ
 RSTER Resonance Energy Transfer for Singlet Fission.\n \nReferences\n[1] 
 a) M.-E. Ragoussi\, T. Torres\, Chem. Commun. 51\, 3957 (2015). b) M. Seki
 ta\, et al.\, Angew. Chem. Int. Ed. 55\, 5560 (2016). c) K. Cho\, et al.\,
  Adv. Ener. Mater. 1601733 (2017). d) M. Urbani\, Coord. Chem. Rev. 381\, 
 1 (2019). e) O. Langmar\, et al. Angew. Chem. Int. Ed.\,  58\, 4056 (2019
 ).\n[2] a) J. Guilleme\, et al.\, Angew. Chem. Int. Ed. 54\, 2543 (2015). 
 b) K. Cnops\, et al. J. Am. Chem. Soc. 137\, 8991 (2015). c) C. Duan\, et 
 al.\, Angew. Chem. Int. Ed. 56\, 148 (2017). d) A. V. Gorbunov\, et al.\, 
 Science Advances\, 3\, 1701017 (2017). e) G. Lavarda\, et al. Angew. Chem.
  Int. Ed.\,  57\, 16291 (2018). f) C. Schierl\, et al. Angew. Chem. Int. 
 Ed.\,  58\, 14644 (2019).    \n\nThe seminar can also be followed rem
 otely by joining the online Cisco WebEx meeting (connection possible 15 mi
 nutes before the talk).\nSee here the documentation how to install the Cis
 co WebEx add-on on your computer.\nIn case of problem\, you can contact ou
 r IT support (37679 - it.vs@epfl.ch)
LOCATION:Tseuzier\, I17 4 K2 https://plan.epfl.ch/?room==I17%204%20K2
STATUS:CONFIRMED
END:VEVENT
END:VCALENDAR