A Center for Organic Photonic Materials Research
Abstract
A Center for Organic Photonic Materials Research (COPMR) was established at Norfolk State University (NSU). Novel and high efficiency optoelectronic and nano structured polymeric materials are the main research focus. Specifically, during the performance period, a series of -DBAB- type of block copolymers, where D is a conjugated electron donating block, A is a conjugated electron withdrawing acceptor block, and B is a non conjugated and flexible bridge unit, have been designed, synthesized and characterized. It was found that the photoconductivity of the synthesized -DBAB- type block copolymers was much better then the simple donor/acceptor blends under identical conditions. This was attributed mainly to the improvement in spatial domain for photo induced charge separation and transportation. Energy level domain optimizations have also been analyzed using classic electron transfer theory. These materials can be potentially developed to fabricate inexpensive, lightweight and flexible plastic' solar cells. Additionally, a new photo crosslinkable nonlinear optical polymer system has also been developed that may provide a photolithographic alternative for polymeric electro-optical modulator device fabrication.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 31, 2004
- Accession Number
- ADA427601
Entities
People
- Sam Sun
Organizations
- Norfolk State University