Conjugated polymer/nanostructured oxide semiconductor composite photovoltaic devices

Dana C. Olson, Alexander Miedaner, Calvin Curtis, Garry Rumbles, Reuben T. Collins, Brian A. Gregg, David S. Ginley, Sean E. Shaheen

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)


Organic semiconductor-based photovoltaic devices offer the promise of low cost photovoltaic technology that can be manufactured via large-scale, roll-to-roll printing techniques. Existing organic photovoltaic devices are currently limited to solar power conversion efficiencies of 3-5%. The reasons for this include poor overlap between the absorption spectrum of the organic chromophores and the solar spectrum, non-ideal band alignment between the donor and acceptor species, and low charge carrier mobilities resulting from the disordered nature of organic semiconductors. To address the latter issues, we are investigating the development of nanostructured oxide / conjugated polymer composite photovoltaic (PV) devices. These composites can take advantage of the high electron mobilities attainable in oxide semiconductors and can be fabricated using low-temperature solution-based growth techniques. Additionally, the morphology of the composite can be controlled in a systematic way through control of the nanostructured oxide growth. For both ZnO and TiO 2, nanostructures that are vertically aligned with respect to the substrate can be grown. Here we discuss the fabrication of such nanostructures and present preliminary results from ZnO nanocarpet/poly(3-hexylthiophene) composite PV devices.

Original languageEnglish
Pages (from-to)71-73
Number of pages3
JournalConference Record of the IEEE Photovoltaic Specialists Conference
Publication statusPublished - Nov 30 2005
Event31st IEEE Photovoltaic Specialists Conference - 2005 - Lake Buena Vista, FL, United States
Duration: Jan 3 2005Jan 7 2005

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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