title: New Pyridinium Ylide Dyes for Dye Sensitized Solar Cell Applications.
abstract: Novel organic pyridinium ylide sensitizers (NO109-111) consisting of various anchoring groups were synthesized and characterized for applications in dye sensitized solar cells. Compared with the pyridine-N-oxide dye (NO108), the ylide sensitizers with strong electron-withdrawing acceptors exhibited dominant ultraviolet absorption properties and efficient binding abilities to the TiO2 surface. Among these dyes, the pyridinium ylide NO111 sensitized solar cell showed the highest efficiency (5.15%), which was improved to 7.41% by employing coadsorbent chenodeoxycholic acid.
authors.affiliation: Department of Chemistry, National Central University , Chung-Li, 32001, Taiwan.
authors.forename: Ting-Yu
authors.initials: TY
authors.lastname: Li
authors.affiliation: Institute of Organic and Polymeric Materials, National Taipei University of Technology , Taipei, 10608, Taiwan.
authors.forename: Chaochin
authors.initials: C
authors.lastname: Su
authors.affiliation: Department of Chemistry, National Central University , Chung-Li, 32001, Taiwan.
authors.forename: Suri Babu
authors.initials: SB
authors.lastname: Akula
authors.affiliation: Institute of Organic and Polymeric Materials, National Taipei University of Technology , Taipei, 10608, Taiwan.
authors.forename: Wei-Gang
authors.initials: WG
authors.lastname: Sun
authors.affiliation: Department of Chemistry, National Central University , Chung-Li, 32001, Taiwan.
authors.forename: Hung-Ming
authors.initials: HM
authors.lastname: Chien
authors.affiliation: Department of Chemistry, National Central University , Chung-Li, 32001, Taiwan.
authors.forename: Wen-Ren
authors.initials: WR
authors.lastname: Li