Dual Donor-π-Acceptor Phenoxazine Dyes for Efficient Dye-Sensitized Solar Cells

Al-Ghamdi H. A., El-Shishtawy R. M., Asiri A. M., ÖZEL K., ATILGAN A., YILDIZ A.

Energy Technology, cilt.14, sa.1, 2026 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 14 Sayı: 1
  • Basım Tarihi: 2026
  • Doi Numarası: 10.1002/ente.202501561
  • Dergi Adı: Energy Technology
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chimica, Compendex, Environment Index, Greenfile, INSPEC
  • Anahtar Kelimeler: cyanoacrylic acid anchor, dye-sensitized solar cells (DSSCs), D–D–π–A dye, intramolecular charge transfer (ICT) band, phenoxazine donor
  • Ankara Üniversitesi Adresli: Evet

Özet

A novel D–D–π–A dye (TPC) based on a phenoxazine core and a p-tolyl auxiliary donor was designed and synthesized. The dye exhibits strong visible-light absorption, efficient intramolecular charge transfer, and promising performance when applied in dye-sensitized solar cells (DSSCs). TPC achieved a notable power conversion efficiency (PCE), demonstrating its potential as a high-efficiency organic sensitizer. When incorporated into DSSCs, the TPC dye exhibited a short-circuit current density (Jsc) of 19.01 mA cm−2, an open-circuit voltage (Voc) of 0.65 V, a fill factor (FF) of 0.62, and a PCE of 7.69% under standard AM 1.5G illumination.