Highly efficient new indoline dye having strong electron-withdrawing group for zinc oxide dye-sensitized solar cell

New indoline dye (DN319) having strong electron-withdrawing dicyanovinylidene moiety and octyl group in the terminal rhodanine ring gave higher efficiency than D205, which was known as an excellent organic dye sensitizer. This result is attributed to the bathochromic shift in the UV-vis absorption band and positive shift in the E-ox level of DN319. (C) 2011 Elsevier Ltd. All rights reserved.