Title :
Detecting free carriers in organic photovoltaic systems: Time-resolved microwave conductivity
Author :
Rumbles, Garry ; Kopidakis, Nikos ; Coffey, David ; Ferguson, Andrew ; Dayal, Smita ; Reid, Obadiah
Author_Institution :
Chem. & Mater. Sci. Center, Nat. Renewable Energy Lab., Golden, CO, USA
Abstract :
In here we report on using flash photolysis, time-resolved microwave conductivity (fp-TRMC) as a tool for detecting the fate of mobile charge carriers. This spectroscopy does not require electrodes and can therefore focus attention on the active components of the donor- acceptor system and provide insight into the heart of OPV device functionality.
Keywords :
high-frequency effects; photolysis; solar cells; time resolved spectra; active components; donor-acceptor system; flash photolysis; free carriers; mobile charge carriers; organic photovoltaic device functionality; organic photovoltaic systems; spectroscopy; time-resolved microwave conductivity; Chemistry; Excitons; Photovoltaic systems; Plastics; Radiative recombination; USA Councils;
Conference_Titel :
Semiconductor Device Research Symposium (ISDRS), 2011 International
Conference_Location :
College Park, MD
Print_ISBN :
978-1-4577-1755-0
DOI :
10.1109/ISDRS.2011.6135396
