Optoelectronic characterization of carrier extraction in a hot carrier photovoltaic cell structure
Journal of Optics IOP Publishing 18:7 (2016) 074003-074003
Abstract:
A hot carrier photovoltaic cell requires extraction of electrons on a timescale faster than they can lose energy to the lattice. We optically and optoelectronically characterize two resonant tunneling structures, showing their compatability with hot carrier photovoltaic operation, demonstrating structural and carrier extraction properties necessary for such a device. In particular we use time resolved and temperature dependent photoluminescence to determine extraction timescales and energy levels in the structures and demonstrate fast carrier extraction by tunneling. We also show that such devices are capable of extracting photo-generated electrons at high carrier densities, with an open circuit voltage in excess of 1 V.Nanoscale current spreading analysis in solution-processed graphene oxide/silver nanowire transparent electrodes via conductive atomic force microscopy
Journal of Applied Physics American Institute of Physics 119:19 (2016) 195501-195501
Nanoscale current spreading analysis in solution-processed graphene oxide/silver nanowire transparent electrodes via conductive atomic force microscopy
JOURNAL OF APPLIED PHYSICS 119:19 (2016) ARTN 195501
Room temperature dielectric bistability in solution-processed spin crossover polymer thin films
Journal of Materials Chemistry C Royal Society of Chemistry (RSC) 4:26 (2016) 6240-6248
Abstract:
Optical and electrical studies reveal spin switching bistability from polymer thin films.