Faithin Omaha eBook Collection

Download or read book Control of Color, Molecular Order and Charge Transport in Conjugated Polymers written by Unsal Koldemir and published by . This book was released on 2012 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conjugated polymers with a high degree of molecular order were developed and integrated into organic electronic applications, where the mechanical robustness, processibility, and high charge transport properties of these materials were taken advantage of to yield high performance devices. This dissertation examines strategies for improving device performance first through optimizing synthetic protocols for the scalable preparation of photovoltaic materials with aesthetically pleasing color; and also through synthetic manipulation, via heavy atom substitution and end capping, of commonly used polymers to yield improved charge transport in field effect transistor applications. A dioxythiophene donor-acceptor based polymer, PGreen, was synthesized through oxidative polymerization (later optimized through Stille polymerization) and implemented in photovoltaic devices. The synthesis was both reproducible and scalable. PGreen was chosen because of its aesthetically pleasing green color, achieved via a trough in its absorption profile in the green region of the spectrum. This work is the first to study the scalability of both the synthesis and processing of a polymer other than poly(3-hexylthiophenes) for large area solar cell applications. In.