Large-area, transparent and conductive graphene electrode for bulk-heterojunction photovoltaic devices

Minhyeok Choe, Byoung Hoon Lee, Gunho Jo, June Park, Woojin Park, Sangchul Lee, Woong Ki Hong, Maeng Je Seong, Yung Ho Kahng, Kwanghee Lee, Takhee Lee

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We present application results of synthesized graphene films as transparent and conductive electrodes of organic photovoltaic devices. The graphene films were synthesized by chemical vapor deposition (CVD) technique on nickel substrates and showed a low sheet resistance of ∼605Ω/□ and transmittance of 87% in the visible wavelength range. The performance of graphene-applied organic photovoltaic cell was enhanced by intermediating TiO X layer to yield an overall power conversion efficiency of 2.60% which is the higher efficiency among the efficiencies of photovoltaic cells with graphene electrodes. Our demonstration of highly efficient graphene-adopted photovoltaic cells may foster thrusting the fast-progressing graphene technology into the practical realm of organic photovoltaic cells.

Original languageEnglish
Title of host publicationPhysics of Semiconductors - 30th International Conference on the Physics of Semiconductors, ICPS-30
Pages791-792
Number of pages2
DOIs
StatePublished - 2011
Event30th International Conference on the Physics of Semiconductors, ICPS-30 - Seoul, Korea, Republic of
Duration: 25 Jul 201030 Jul 2010

Publication series

NameAIP Conference Proceedings
Volume1399
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference30th International Conference on the Physics of Semiconductors, ICPS-30
Country/TerritoryKorea, Republic of
CitySeoul
Period25/07/1030/07/10

Keywords

  • Chemical vapor deposition
  • Graphene
  • Photovoltaic
  • TiOx
  • Transparent electrode

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