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Mapping of inhomogeneous quasi-3D electrostatic field in electro-optic materials

Scientific reports, 2021-01, Vol.11 (1), p.2154-2154, Article 2154 [Peer Reviewed Journal]

The Author(s) 2021. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;The Author(s) 2021 ;ISSN: 2045-2322 ;EISSN: 2045-2322 ;DOI: 10.1038/s41598-021-81338-w ;PMID: 33495521

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  • Title:
    Mapping of inhomogeneous quasi-3D electrostatic field in electro-optic materials
  • Author: Dědič, Václav ; Fridrišek, Tomáš ; Franc, Jan ; Kunc, Jan ; Rejhon, Martin ; Roy, Utpal N ; James, Ralph B
  • Subjects: Electric fields ; Electrostatic properties ; imaging and sensing ; MATERIALS SCIENCE ; sensors and biosensors ; Silicon carbide
  • Is Part Of: Scientific reports, 2021-01, Vol.11 (1), p.2154-2154, Article 2154
  • Description: This paper describes a new method for direct measurement and evaluation of the inhomogeneous electrostatic vector field with translational symmetry in electro-optic materials exhibiting the Pockels effect. It is based on the evaluation of maximum transmittance of low intensity light passing through a sample under a voltage bias. Here, the sample is located between rotating crossed polarizers, and camera images are obtained at each point to determine the electric field. The evaluation procedure is demonstrated using data acquired on a CdZnTeSe quasi-hemispheric semiconductor gamma-ray detector. In addition to CdTe-related compounds, the method can be used for various other materials showing [Formula: see text] symmetry such as GaAs, CdTe, GaP, 3C-SiC, and ZnS. Furthermore, it can be generalized to other crystalline materials showing the Pockels effect. The method can be used to probe the space charge and the electric field in several kinds of electronic components and devices, as well as provide useful data on the role of defects, contact configurations and other surface and bulk inhomogeneities in the material that can affect the distribution of the internal electric field.
  • Publisher: England: Nature Publishing Group
  • Language: English
  • Identifier: ISSN: 2045-2322
    EISSN: 2045-2322
    DOI: 10.1038/s41598-021-81338-w
    PMID: 33495521
  • Source: Open Access: PubMed Central
    AUTh Library subscriptions: ProQuest Central
    Directory of Open Access Journals
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