Levich Institute Seminar Announcement, 09/22/2009
Tuesday, 09/22/2009
2:00 PM
Steinman Hall, Room #312
(Chemical Engineering Conference Room)

Professor Michael Mackay
University of Delaware
Department of Materials Science and Engineering

"Polymer-Based Solar Cells - What is the Morphology in the Device and How Does this Influence Performance?""


ABSTRACT


Polymer based solar cell technology is in its infancy showing great promise due to ease of fabrication, mechanical flexibility, light weight and low cost. However, the photovoltaic device efficiency using semi-conducting polymers is small and determined by morphology control over two disparate nano-length scales, ~ 10 nm and ~ 100 nm, necessitating advanced measurement science. Interestingly neutron scattering is the best non-destructive technique to use because the components have natural contrast to neutrons and it has an appropriate wavelength to quantify the morphology. In this seminar I will discuss the type of morphology present in the bulk heterojunction by using neutron reflectivity, grazing incidence neutron scattering and in-plane neutron scattering, as well as other characterization techniques. Suggestions as to how to improve the morphology and cell performance will also be given.

BRIEF ACADEMIC/EMPLOYMENT BACKGROUND:

  • BChE - Univ of Delaware
  • MS&PhD - Univ Illinois - Urbana
  • Postdoc - Univ Melbourne (Australia)
  • Professor - Univ of Queensland (Australia), Stevens Inst Tech, Michigan State Univ
  • Professor - Univ of Delaware (presently employed here)
CURRENT RESEARCH INTERESTS:


Nanocomposites and Polymer Based Solar Cells