Do Capacitance Measurements Reveal Light-Induced Bulk Dielectric Changes in Photovoltaic Perovskites?
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Physical Chemistry C"
DOI: 10.1021/acs.jpcc.7b11703
Abstract: Several studies have identified complex interactions between photogenerated carriers and the crystal lattice in perovskite materials for photovoltaics, which are regarded to have an inherently soft character. Light is known to induce phase segregation in… read more here.
Keywords: measurements reveal; capacitance measurements; induced bulk; light induced ... See more keywords
Voltage and partial pressure dependent defect chemistry in (La,Sr)FeO3–δ thin films investigated by chemical capacitance measurements
Sign Up to like & getrecommendations! Published in 2018 at "Physical Chemistry Chemical Physics"
DOI: 10.1039/c7cp07845e
Abstract: Chemical capacitance measurements are used to study the defect chemistry of La0.6Sr0.4FeO3–δ thin films and their polarization (η) and pO2 dependence. Important point defects are oxygen vacancies (), electrons (e′) and holes (h˙). read more here.
Keywords: capacitance measurements; thin films; chemical capacitance; chemistry ... See more keywords
Evaluation of Automatic Coaxial Mechanical Scanners for Precise Resistance and Capacitance Measurements
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Instrumentation and Measurement"
DOI: 10.1109/tim.2017.2653578
Abstract: In this paper, we evaluated automatic four-terminal-pair and two-terminal-pair coaxial mechanical scanners for precise dc resistance and capacitance measurements. These scanners mechanically change a set of four-terminal-pair or two-terminal-pair BNC connections with coaxial cables using… read more here.
Keywords: terminal pair; capacitance measurements; mechanical scanners; resistance ... See more keywords
Anomalously low dielectric constant of confined water
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DOI: 10.1126/science.aat4191
Abstract: Water's surface dielectric Theoretical studies predict that the inhibition of rotational motion of water near a solid surface will decrease its local dielectric constant. Fumagalli et al. fabricated thin channels in insulating hexagonal boron nitride… read more here.
Keywords: capacitance measurements; water; surface; dielectric constant ... See more keywords
Progress in Traceable Nanoscale Capacitance Measurements Using Scanning Microwave Microscopy
Sign Up to like & getrecommendations! Published in 2021 at "Nanomaterials"
DOI: 10.3390/nano11030820
Abstract: Reference samples are commonly used for the calibration and quantification of nanoscale electrical measurements of capacitances and dielectric constants in scanning microwave microscopy (SMM) and similar techniques. However, the traceability of these calibration samples is… read more here.
Keywords: capacitance measurements; uncertainty; microscopy; scanning microwave ... See more keywords