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Van der Pauw method

About: Van der Pauw method is a research topic. Over the lifetime, 1682 publications have been published within this topic receiving 25364 citations.


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Journal ArticleDOI
TL;DR: In this article, thin films of CdO have been deposited using a spray pyrolysis process and the physical properties investigated for the layers deposited using different substrate temperatures, including X-ray diffractometry, scanning electron microscopy, transmittance and reflectance vs. wavelength measurements, and Van der Pauw measurements.

80 citations

Journal ArticleDOI
TL;DR: The geometrical arrangement of single-molecule-high islands and the contact between them have large roles in determining the electrical properties of field effect transistors (FETs) based on monolayer-scale pentacene thin films as mentioned in this paper.
Abstract: The geometrical arrangement of single-molecule-high islands and the contact between them have large roles in determining the electrical properties of field effect transistors (FETs) based on monolayer-scale pentacene thin films. As the pentacene coverage increases through the submonolayer regime there is a percolation transition where islands come into contact and a simultaneous rapid onset of current. At coverages just above the percolation threshold, the electrical properties vary with geometrical changes in the contacts between the pentacene islands. At higher coverages, the FET mobility is much lower than the mobility measured by the van der Pauw method because of high contact resistances in monolayer-scale pentacene film devices. An increase in the van der Pauw mobility of holes as a function of pentacene coverage shows that second layer islands take part in charge transport.

80 citations

Journal ArticleDOI
TL;DR: In this paper, the microstructure and electrical properties of indium oxide and tin oxide thin films are analyzed by XRD, AFM, and van der Pauw fourpoint-probe technique and the results discussed.

80 citations

Journal ArticleDOI
TL;DR: In this article, the authors describe the deposition of cubic and 6 H silicon carbide onto 6 H substrates, and the influence of the deposition parameters (e.g. temperature, gas composition and flow rate) are discussed.

79 citations

Journal ArticleDOI
TL;DR: In this article, the extraordinary magnetoresistance exhibited by a composite van der Pauw (vdP) disk consisting of a semiconductor with an internal shunt can also be obtained from an electrically equivalent, externally shunted structure that is amenable to fabrication in the mesoscopic sizes required for important magnetic sensor applications.
Abstract: We show that extraordinary magnetoresistance (EMR) exhibited by a composite van der Pauw (vdP) disk consisting of a semiconductor with an internal shunt can also be obtained from an electrically equivalent, externally shunted structure that is amenable to fabrication in the mesoscopic sizes required for important magnetic sensor applications. As an example, we use bilinear conformal mapping to transform the composite vdP disk into an externally shunted rectangular plate and calculate its EMR by solving Laplace’s equation with appropriate boundary conditions using no adjustable parameters. The calculations are in good agreement with measurements of InSb plates with Au shunts. Room-temperature EMR values as high as 550% at 0.05 T are obtained.

79 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202328
202241
202128
202030
201960
201867