Push-pull type material having spirobifluorene as pi-spacer for dye sensitized solar cells


CAN M., Bilgili H., Demirak K., GÜLTEKİN B., KOYUNCU S., KUŞ M., ...Daha Fazla

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, cilt.41, sa.46, ss.21293-21299, 2016 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 41 Sayı: 46
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1016/j.ijhydene.2016.07.193
  • Dergi Adı: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.21293-21299
  • Anahtar Kelimeler: Donor-acceptor dyes, pi-bridge effect, Dye sensitized solar cell
  • Çanakkale Onsekiz Mart Üniversitesi Adresli: Evet

Özet

Two organic dyes for dye-sensitized solar cells (DSSC) based on spirobifluorene were synthesized and characterized. Electrochemical, spectroscopic and photovoltaic properties of the dyes have been investigated. Hexyloxy substituted triarylamine was used as electron donating moiety in the molecule while spirobifluorene and cyanoacrylic acid were used as pi-bridge and acceptor groups, respectively. MK162-sensitized solar cells exhibited a short-circuit current (I-SC) of 4,92 mA cm(-2), an open-circuit voltage (V-OC) of 520 mV and a fill factor (FF) of 0.59, resulting an overall power conversion efficiency of 1,52 where the reference cell, Z907 was yielded an overall conversion efficiency of 4.08% efficiency with 620 mV of V-OC and 14.51 mA cm(-2) of Isc under standard AM 1.5 illumination. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.