title: A low-energy-gap organic dye for high-performance small-molecule organic solar cells.
abstract: A novel donor-acceptor-acceptor (D-A-A) donor molecule, DTDCTB, in which an electron-donating ditolylaminothienyl moiety and an electron-withdrawing dicyanovinylene moiety are bridged by another electron-accepting 2,1,3-benzothiadiazole block, has been synthesized and characterized. A vacuum-deposited organic solar cell employing DTDCTB combined with the electron acceptor C(70) achieved a record-high power conversion efficiency (PCE) of 5.81%. The respectable PCE is attributed to the solar spectral response extending to the near-IR region and the ultracompact absorption dipole stacking of the DTDCTB thin film.
authors: Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan.
authors: Li-Yen
authors: LY
authors: Lin
authors: Yi-Hong
authors: YH
authors: Chen
authors: Zheng-Yu
authors: ZY
authors: Huang
authors: Hao-Wu
authors: HW
authors: Lin
authors: Shu-Hua
authors: SH
authors: Chou
authors: Francis
authors: F
authors: Lin
authors: Chang-Wen
authors: CW
authors: Chen
authors: Yi-Hung
authors: YH
authors: Liu
authors: Ken-Tsung
authors: KT
authors: Wong