Graphene quantum dots could lead to low-cost solar cells and OLEDs
Tuesday, July 5, 2011 - 06:30
in Physics & Chemistry
(PhysOrg.com) -- Fabricating photovoltaic devices those that convert sunlight into electricity out of organic materials has several advantages over using non-organic materials, such as flexibility and good light absorption. However, the widespread commercialization of organic photovoltaic devices remains limited due to the high cost of the electron donor and acceptor materials used in these devices. In a new study, scientists have addressed this issue by fabricating luminescent graphene quantum dots (GQDs) blended with organic polymers for use as electron acceptors, which could offer better performance at lower cost than other polymer-based organic materials.