Polarization induced doping for carrier transport in graded III-nitride layers: a simulation study

Witzigmann B, Römer F (2023)


Publication Type: Conference contribution

Publication year: 2023

Publisher: SPIE

Book Volume: 12415

Conference Proceedings Title: Proceedings of SPIE - The International Society for Optical Engineering

Event location: San Francisco, CA, USA

ISBN: 9781510659353

DOI: 10.1117/12.2652797

Abstract

Hexagonal III-nitride semiconductors exhibit internal polarization fields along their c-direction. In regions with graded mole fractions, the polarization gradient creates bound volume charge densities. Due to their electrostatic effect, they affect the balance of mobile charges, and can lead to polarization induced doping. In this contribution, drift-diffusion type simulations are employed in order to analyze a pn-junction based on polarization induced charges, and an analytical formula for calculating the bound charge density is given.

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APA:

Witzigmann, B., & Römer, F. (2023). Polarization induced doping for carrier transport in graded III-nitride layers: a simulation study. In Bernd Witzigmann, Marek Osinski, Yasuhiko Arakawa (Eds.), Proceedings of SPIE - The International Society for Optical Engineering. San Francisco, CA, USA: SPIE.

MLA:

Witzigmann, Bernd, and Friedhard Römer. "Polarization induced doping for carrier transport in graded III-nitride layers: a simulation study." Proceedings of the Physics and Simulation of Optoelectronic Devices XXXI 2023, San Francisco, CA, USA Ed. Bernd Witzigmann, Marek Osinski, Yasuhiko Arakawa, SPIE, 2023.

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