Controlling Polarization Dependent Reactions to Fabricate Multi-Component Functional Nanostructures
Source: Advanced Functional Materials, Volume 21, Number 24, 20 December 2011 , pp. 4712-4718(7)
Abstract:<title type="main">Abstract</title> In spite of novel lithographic processes that enable new approaches to fabricating materials, directed assembly of multi-component hybrid devices remains a challenge. Ferroelectric nanolithography exploits polarization dependent surface interactions to pattern nanoparticles, but the factors that control the particle size and distribution are not sufficiently well understood to produce hybrid nanostructures. Here the effects of photon energy, photon flux, and polarization vector orientation on ferroelectric domain specific photoreactions are quantified, leading to an understanding of the nanoparticle deposition mechanism. Patterned nanoparticle arrays functionalized with optically active porphyrin complexes are configured into optoelectronic devices.
Document Type: Research article
Affiliations: 1: Department of Materials Science and Engineering, School of Engineering and Applied Sciences, The University of Pennsylvania, 3231 Walnut St, Philadelphia, PA 19104, USA 2: Department of Chemistry, School of Arts and Sciences, The University of Pennsylvania, 231 S. 34 Street, Philadelphia, PA 19104, USA 3: Therien, Department of Chemistry, French Family Science Center, 124 Science Drive, Duke University, Durham, NC 27708-0354, USA
Publication date: 2011-12-20