Journal article

Study of the carrier transfer across the GaNP nanowire electrolyte interface by electron paramagnetic spin trapping


Authors listPhilipps, Jan M.; Stehr, Jan E.; Hofmann, Detlev M.; Buyanova, Irina A.; Eickhoff, Martin

Publication year2017

JournalApplied Physics Letters

Volume number110

Issue number22

ISSN0003-6951

eISSN1077-3118

DOI Linkhttps://doi.org/10.1063/1.4984277

PublisherAmerican Institute of Physics


Abstract
We investigate the transfer of photoexcited charge carriers from GaP and GaNP nanowires to an electrolyte by bias-dependent photocurrent and electron paramagnetic resonance experiments using 5,5-dimethyl-1-pyrroline-N-oxide as a spin trap. The results of the latter show that hydroxyl radicals are created over the entire applied bias range from -1000mV to +1300mV by hole transfer. In contrast, the photocurrent changes from cathodic to anodic at the open circuit potential of the three-electrode setup with the nanowire sample acting as the working electrode. The experiments show that the photoelectrochemical response of GaNP nanowires is significantly stronger compared to that of the GaP nanowires. Published by AIP Publishing.



Citation Styles

Harvard Citation stylePhilipps, J., Stehr, J., Hofmann, D., Buyanova, I. and Eickhoff, M. (2017) Study of the carrier transfer across the GaNP nanowire electrolyte interface by electron paramagnetic spin trapping, Applied Physics Letters, 110(22), Article 222101. https://doi.org/10.1063/1.4984277

APA Citation stylePhilipps, J., Stehr, J., Hofmann, D., Buyanova, I., & Eickhoff, M. (2017). Study of the carrier transfer across the GaNP nanowire electrolyte interface by electron paramagnetic spin trapping. Applied Physics Letters. 110(22), Article 222101. https://doi.org/10.1063/1.4984277



Keywords


ALLOYSARRAYSBAND-GAPDRIVEN HYDROGEN-PRODUCTIONGALLIUM-PHOSPHIDE NANOWIRESJUNCTIONPHOTOCATHODESSOLAR-CELLSSURFACTANT-FREEWATER REDUCTION

Last updated on 2025-02-04 at 01:34