Electron-Affinity-Triggered Variations on the Optical and Electrical Properties of Dye Molecules Enabling Highly Efficient Dye-Sensitized Solar Cells

Liu Y., Cao Y., Zhang W., Stojanovic M., Dar M. I., Pechy P., ...Daha Fazla

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, cilt.57, sa.43, ss.14125-14128, 2018 (SCI-Expanded, Scopus) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 57 Sayı: 43
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1002/anie.201808609
  • Dergi Adı: ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Index Chemicus (IC)
  • Sayfa Sayıları: ss.14125-14128
  • Anahtar Kelimeler: ambient light photovoltaics, copper electrolyte, dye-sensitized solar cells, high voltage, molecular engineering, ORGANIC SENSITIZERS, ABSORPTION, DONORS
  • Ankara Üniversitesi Adresli: Hayır

Özet

The synthesis, characterization, and photovoltaic performance of a series of indacenodithiophene (IDT)-based D--A organic dyes with varying electron-accepting units is presented. By control of the electron affinity, perfectly matching energy levels were achieved with a copper(I/II)-based redox electrolyte, reaching a high open-circuit voltage (>1.1V) while harvesting a large fraction of solar photons at the same time. Besides achieving high power conversion efficiencies (PCEs) for dye-sensitized solar cells (DSCs), that is, 11.2% under standard AM1.5G sunlight, and 28.4% under a 1000 lux fluorescent light tube, this work provides a possible method for the design and fabrication of low-cost highly efficient DSCs.