A Low-Energy-Gap Organic Dye for High-Performance Small-Molecule Organic Solar Cells

作者：Lin Li Yen; Chen Yi Hong; Huang Zheng Yu; Lin Hao Wu^*; Chou Shu Hua; Lin Francis; Chen Chang Wen; Liu Yi Hung; Wong Ken Tsung

来源：Journal of the American Chemical Society, 2011, 133(40): 15822-15825.

DOI：10.1021/ja205126t

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.

• 出版日期2011-10-12
• 单位清华大学