Ontology highlight
ABSTRACT:
SUBMITTER: Beyreuther E
PROVIDER: S-EPMC6264026 | biostudies-literature | 2018 Nov
REPOSITORIES: biostudies-literature
Beyreuther Elke E Grafström Stefan S Eng Lukas M LM
Sensors (Basel, Switzerland) 20181121 11
We introduce a robust low-budget Kelvin probe design that is optimized for the long-term acquisition of surface photovoltage (SPV) data, especially developed for highly resistive systems, which exhibit-in contrast to conventional semiconductors-very slow photoinduced charge relaxation processes in the range of hours and days. The device provides convenient optical access to the sample, as well as high mechanical and electrical stability due to off-resonance operation, showing a noise band as nar ...[more]