Direct printing of metal contacts on 4H-SiC for radiation detection

Neil R. Taylor; W. Kuang; M. Saeidijavash; Praneeth Kandlakunta; Y. Zhang; Lei R. Cao

doi:10.1063/1.5119689

Direct printing of metal contacts on 4H-SiC for radiation detection

Neil R. Taylor, W. Kuang, M. Saeidijavash, Praneeth Kandlakunta, Y. Zhang, Lei R. Cao

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Additive manufacturing (AM) has created the possibility of replacing traditional manufacturing techniques with faster, versatile, and cost-effective production options. In this study, we employed AM techniques to fabricate silicon carbide (SiC) radiation detectors based on commercial 4H-SiC wafers. Platinum (Pt) nanoparticle inks were synthesized and printed onto the surface of a 4H-SiC wafer using an aerosol jet printing technique to create Schottky diodes for radiation detection. The additive printed detectors were characterized for surface morphology through a scanning electron microscope (SEM) and atomic force microscope (AFM), and electronically by current-voltage (IV), capacitance-voltage (CV), and finally by alpha spectroscopy measurements. The printed detector achieved an energy resolution of 3.24% FWHM at 5.486 MeV, compared to 0.62% FWHM of a SiC detector fabricated by conventional cleanroom technologies and 0.3% FWHM of a commercially available Si detector.

Original language	English
Article number	095041
Journal	AIP Advances
Volume	9
Issue number	9
DOIs	https://doi.org/10.1063/1.5119689
State	Published - Sep 1 2019
Externally published	Yes

Funding

This material is based upon work supported under an Integrated University Program Graduate Fellowship. We acknowledge the support from US. Department of Energy, National Nuclear Security Administration, DNN R&Ds Integrated University Program, Consortium for Enabling Technologies & Innovation. The authors also thank Dr. C. Dun for fabrication of Pt nanoparticles.

Funders	Funder number
Consortium for Enabling Technologies & Innovation
National Nuclear Security Administration
Office of Defense Nuclear Nonproliferation
Universiteit Stellenbosch

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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Cite this

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abstract = "Additive manufacturing (AM) has created the possibility of replacing traditional manufacturing techniques with faster, versatile, and cost-effective production options. In this study, we employed AM techniques to fabricate silicon carbide (SiC) radiation detectors based on commercial 4H-SiC wafers. Platinum (Pt) nanoparticle inks were synthesized and printed onto the surface of a 4H-SiC wafer using an aerosol jet printing technique to create Schottky diodes for radiation detection. The additive printed detectors were characterized for surface morphology through a scanning electron microscope (SEM) and atomic force microscope (AFM), and electronically by current-voltage (IV), capacitance-voltage (CV), and finally by alpha spectroscopy measurements. The printed detector achieved an energy resolution of 3.24% FWHM at 5.486 MeV, compared to 0.62% FWHM of a SiC detector fabricated by conventional cleanroom technologies and 0.3% FWHM of a commercially available Si detector.",

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AU - Taylor, Neil R.

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AU - Saeidijavash, M.

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AU - Zhang, Y.

AU - Cao, Lei R.

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Direct printing of metal contacts on 4H-SiC for radiation detection

Abstract

Funding

UN SDGs

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