A Naphthodithiophene-Diketopyrrolopyrrole Donor Molecule for Efficient Solution-Processed Solar Cells

作者：Loser Stephen; Bruns Carson J; Miyauchi Hiroyuki; Ortiz Rocio Ponce; Facchetti Antonio^*; Stupp Samuel I; Marks Tobin J

来源：Journal of the American Chemical Society, 2011, 133(21): 8142-8145.

DOI：10.1021/ja202791n

We report the synthesis, characterization, and first implementation of a naphtho[2,3-b:6,7-b']dithiophene (NDT)-based donor molecule in highly efficient organic photovoltaics (OPVs). When NDT(TDPP)(2) (TDPP = thiophene-capped diketopyrrolopyrrole) is combined with the electron acceptor PC(61)BM, a power conversion efficiency (PCE) of 4.06 +/- 0.06% is achieved-a record for a PC(61)BM-based small-molecule OPV. The substantial PCE is attributed to the broad, high oscillator strength visible absorption, the ordered molecular packing, and an exceptional hole mobility of NDT(TDPP)(2).

• 出版日期2011-6-1
• 单位西北大学