Effect of solution-processed nio thin film as a hole transport layer in poly(3-hexylthiophene): [6,6]-Phenyl c61-butyric acid methyl ester bulk heterojunction solar cells

Joohye Jung, Sang Hoon Oh, Doo Hyun Yoon, Hyun Jae Kim

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

In this study, solution-processed nickel oxide (NiO) thin film was investigated as a hole transport layer on anode to improve the performance of bulk heterojunction solar cell based on poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl C61-butyric acid methyl ester (PCBM). We fabricated\ NiO thin film without any vacuum-related process. Characterization of the NiO film under this study shows that it has maximum transmittance of 93.22% and bandgap of 3.84 eV which are proper for solar cell. Insertion of the NiO layer affords to realize enhanced power conversion efficiency of 1.97% and fill factor of 52.11% showing improvement over existing cells. In addition, NiO suggests one solution of minimizing conventional problems of poly(3,4- ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) such as interfacial power losses, corrosion of indium tin oxide layer, and degradation of the devices. The value of such hole transporting and electron blocking properties is clearly demonstrated and could be applicable to other organic photovoltaics.

Original languageEnglish
Pages (from-to)1165-1169
Number of pages5
JournalJournal of Nanoscience and Nanotechnology
Volume12
Issue number2
DOIs
Publication statusPublished - 2012

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics

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