Advancements in Modeling the Space Charge Induced Flexoelectric Effect

Arash Kazemi, Travis Peters, Susan Trolier-Mckinstry, Shad Roundy

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Flexoelectricity offers an energy harvesting alternative to piezoelectric materials. Although flexoelectricity is generally weak in most materials, recent findings show that bending a semiconductor with insulating barrier layers could induce a significantly enhanced flexoelectric response. We call this effect the Space Charge Induced Flexoelectric (SCIF) effect. This study explores the induced polarization resulting from free charge redistribution in a doped silicon beam. To understand the underlying physics, a 3D numerical model combining flexoelectric principles and the drift-diffusion theory of semiconduction was developed. The effective flexoelectric coefficient was computed by comparing the differential charge accumulation at the top and bottom of the beam and compared that with the experimental observations.

Original languageEnglish (US)
Title of host publicationPowerMEMS 2023 - 2023 IEEE 22nd International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages60-63
Number of pages4
ISBN (Electronic)9798350344219
DOIs
StatePublished - 2023
Event2023 IEEE 22nd International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, PowerMEMS 2023 - Abu Dhabi, United Arab Emirates
Duration: Dec 11 2023Dec 14 2023

Publication series

NamePowerMEMS 2023 - 2023 IEEE 22nd International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications

Conference

Conference2023 IEEE 22nd International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, PowerMEMS 2023
Country/TerritoryUnited Arab Emirates
CityAbu Dhabi
Period12/11/2312/14/23

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Instrumentation

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