Electrochemical growth of Y doped ZnO nanorods for use in inverted type organic solar cells as electron transport layer

Kosemen A.

MATERIALS RESEARCH EXPRESS, cilt.6, sa.9, 2019 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 6 Sayı: 9
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1088/2053-1591/ab2db0
  • Dergi Adı: MATERIALS RESEARCH EXPRESS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Anahtar Kelimeler: electrochemistry, Y doping, ZnO nanorods, inverted type organic solar cells, ZINC-OXIDE, OPTICAL-PROPERTIES, PERFORMANCE, MORPHOLOGY, FILM, ELECTRODEPOSITION, NANOPARTICLES, ER
  • İstanbul Üniversitesi-Cerrahpaşa Adresli: Hayır

Özet

In this study, Yttrium (Y) doped and undoped Zinc oxide (ZnO) nanorods (NRs) were synthesized by the electrochemical method on indium tin oxide (ITO) substrate. Y doped and undoped ZnO-NRs were used as an electron selective layer in inverted type organic solar cell structure. Effect of Y doping in ZnO was investigated via x-ray diffraction (XRD) and scanning electron microscopy (SEM). Poly(3-hexylthiophene):phenyl-C61-butyric acid methyl ester (P3HT:PCBM) was used as an active polymer blend. Inverted type organic solar cells were fabricated with the configuration 'ITO/Y:ZnO-NRs/P3HT:PCBM/Ag'. Active layer was coated on ZnO-NRs by using drop-casting method to completely fill the gaps between the ZnO-NRs. Short circuit current density of the solar cells was increased from 10.6 to 16.4 mA cm(-2) by using 3% Y doped ZnO-NRs as electron selective layer, where as the solar cell efficiency was changed from 2.35% to 3.87%. It was experimentally found that charge injection and selection in the Zn-ONRs were improved by doping the ZnO-NRs with Y atoms.