Dye sensitized solar cell based on 1,8-naphthalene benzimidazole comprising carboxyl group


Erten S., EREN E. , İÇLİ S.

EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS, cilt.38, ss.227-230, 2007 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 38 Konu: 3
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1051/epjap:2007086
  • Dergi Adı: EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS
  • Sayfa Sayıları: ss.227-230

Özet

We report the characterization of 1,8-naphtha naphthalene benzimidazole comprising carboxyl group.We have fabricated dye-sensitized nanocrystalline TiO2 solar cell (DSSC) based on naphthalene benzimidazole dye. The device structure is FTO/nc-TiO2/Dye/I-/I-3(-)/Pt/ FTO. We calculated the E-HOMO and E-LUMO levels of this new dye by using cyclic voltammetry measurement. The E-LUMO level of naphthalene benzimidazole is 3.2 eV. This value is higher than the conduction band of TiO2. Electrons can be injected to the conduction band of TiO2. The current-voltage (I-V) characteristic of cell was measured under simulated AM 1.5 illumination (100 mW/cm(2)). We obtained the open circuit voltage; V-oc = 0.344 V, short circuit current density; I-sc = 5.93 mA cm(-2), filling factor; FF = 0.45, power conversion efficiency; eta = 0.91%.