Functionalized nanodiamond as a charge transporter in organic solar cells

Xinbo C. Lau, Chintal Desai, Somenath Mitra

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

We demonstrate for the first time the efficiency improvement of poly(3-hexylthiophene) (P3HT)-fullerene (C60) bulk heterojunction photovoltaic cells by the introduction of functionalized nanodiamonds (NDs) into the photoactive layer. A novel covalently bonded C60ND composite was synthesized via a microwave induced functionalization approach. As compared to control devices with only C60, the addition of carboxylated ND resulted in 53% improvement in short circuit current density Jsc. Such a device design takes advantages of both C60 for electron accepting and ND for efficient electron transport. The results indicate that C60 decorated NDs are promising additives for the performance enhancement of polymer photovoltaic cells.

Original languageEnglish (US)
Pages (from-to)204-211
Number of pages8
JournalSolar Energy
Volume91
DOIs
StatePublished - May 2013

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

Keywords

  • C
  • Electron transport
  • Fullerenes
  • Nanodiamonds
  • Photovoltaic

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