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Poster communications

Mobilities in high-quality CVD diamond crystals evaluated by time-offlight measurements: experimental and simulation results

Abstract : Diamond is a promising candidate for power electronics as well as for radiation detection1. In both cases, device optimization requires an accurate knowledge of electron and hole mobilities. In this study, time-of-flight (TOF) experiments were performed on intrinsic CVD diamond crystals to determine carrier mobilities. Electron-hole pairs were generated in a biased diamond layer by a rays. The resulting current peak was amplified and measured. The distribution of electron-hole pairs in the sample has also been studied by means of simulation with SRIM and Geant4. This distribution has then been used to simulate the charge transport in the diamond. A drift-diffusion model, coupled with Poisson’s equation, was implemented in COMSOL. These simulation tools have been used to optimize the sample and experimental setup geometry.
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https://hal-cnrs.archives-ouvertes.fr/hal-03578219
Contributor : Audrey Valentin Connect in order to contact the contributor
Submitted on : Thursday, February 17, 2022 - 10:11:32 AM
Last modification on : Saturday, February 26, 2022 - 3:29:57 AM
Long-term archiving on: : Wednesday, May 18, 2022 - 6:30:49 PM

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PosterHasselt2013.pdf
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  • HAL Id : hal-03578219, version 1

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Audrey Valentin, V Mille, A Tallaire, J Achard, A Gicquel. Mobilities in high-quality CVD diamond crystals evaluated by time-offlight measurements: experimental and simulation results. Surface and Bulk Defects in Diamond ( SBDD ) XVIII, Mar 2013, Hasselt, Belgium. ⟨hal-03578219⟩

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