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Proceedings Paper

Hybrid polymer-based photovoltaics via carbon nanotubes and electrostatic self-assembly
Author(s): Elizabeth Donaldson; Michael F. Durstock; Barney E. Taylor; David W. Tomlin; Lindsay C. Richardson; Jeffery W. Baur
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Paper Abstract

Recently, there has been increased interest in polymer-based photovoltaic devices due to their promise for the creation of lightweight, flexible, and inexpensive electrical power. WE examined the possibility of using nanoparticles and nanoparticles with tailored interfaces for the creation of hybrid polymer-based devices with enhanced photovoltaic response. Initially, we investigated the incorporation of multi-walled carbon nanotubes (MWNT) in the poly(benzimidazo-benzophenanthroline) ladder (BBL) layer of two-layer poly(p-phenylene vinylene)(PPV)-BBL photovoltaic devices. Subsequently, we explored the possibility of tuning polymer-particle interfaces through the creation of core-shell particles fabricated using electrostatic self- assembly. For the PPV/BBL(MWNT) devices, a doubling of the photocurrent and a drastic reduction in photovoltage with MWNT incorporation is observed for a range of BBL layer thickness values. This behavior is consistent with the MWNTs functioning as a three dimensional extension of the top aluminum electrode. Fabrication studies on core-shell particles demonstrate that the interfacial properties of a variety of particles can be manipulated, shells of up to 10 bilayers can be achieved, and TiO2 nanoparticles with PPV polymer shells are possible.

Paper Details

Date Published: 21 February 2002
PDF: 9 pages
Proc. SPIE 4465, Organic Photovoltaics II, (21 February 2002); doi: 10.1117/12.456927
Show Author Affiliations
Elizabeth Donaldson, Air Force Research Lab. (United States)
Michael F. Durstock, Air Force Research Lab. (United States)
Barney E. Taylor, Univ. of Dayton Reserach Institute (United States)
David W. Tomlin, Air Force Research Lab. (United States)
Lindsay C. Richardson, Air Force Research Lab. (United States)
Jeffery W. Baur, Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 4465:
Organic Photovoltaics II
Zakya H. Kafafi; Denis Fichou, Editor(s)

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