Subcategory: STEM Research
Harold Lee - Norfolk State University
Co-Author(s): Sam-Shajing Sun, Norfolk State University
Polymeric conjugated materials are very promising for developing future soft material-based semiconductors, conductors, electronic and optoelectronic devices due to their inherent advantages such as lightweight, flexible shape, low-cost, ease of processability, ease of scalability, etc. Like their inorganic counterparts, the addition of certain minority molecules or dopants can significantly alter the electronic and optoelectronic properties of the host conjugated polymers or composites allowing tunablilty for a variety of electronic/optoelectronic applications. In the case of OPVs (organic photovoltaics), p-doping of the donor material is the most prominent form of doping observed and has yielded high performance devices. On the other hand, n-doping and n-doping of the acceptor in specific, has seen limited interest due to the difficulty in creating air stable n-doped systems. Recently, researchers have been able to design air-stable n-doped organic systems for electronic applications. Here, we introduce n-doped organic acceptors into OPV systems to study how they effect overall device performance. Our results can reveal new routes into increasing overall device performance and efficiency in organic-based electronics.
Funder Acknowledgement(s): NSF-CREST HRD 1827214 and NSF-CREST HRD 1547771.
Faculty Advisor: None Listed,