- A low-energy-gap organic dye for high-performance small-molecule organic solar cells.
A low-energy-gap organic dye for high-performance small-molecule organic solar cells.
Journal of the American Chemical Society (2011-09-13)
Li-Yen Lin, Yi-Hong Chen, Zheng-Yu Huang, Hao-Wu Lin, Shu-Hua Chou, Francis Lin, Chang-Wen Chen, Yi-Hung Liu, Ken-Tsung Wong
PMID21905648
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.
MATERIALS
Product Number
Brand
Product Description
Sigma-Aldrich
2-[7-(4-Diphenylaminophenyl)-2,1,3-benzothiadiazol-4-yl]methylenepropanedinitrile, 96%
Sigma-Aldrich
2-[(7-{4-[N,N-Bis(4-methylphenyl)amino]phenyl}-2,1,3-benzothiadiazol-4-yl)methylene]propanedinitrile, 97% (HPLC)
Sigma-Aldrich
2-{[7-(5-N,N-Ditolylaminothiophen-2-yl)-2,1,3-benzothiadiazol-4-yl]methylene}malononitrile, 99% (HPLC)