An investigation of secondary electron emission from ZnO based nanomaterials for future applications in radiation detectors

• Published in: Scientific reports Vol. 11; no. 1; pp. 737 - 8
• Main Authors: Boutachkov, P., Voss, K. O., Lee, K., Song, M. S., Yi, C., Cappellazzo, M., Kondziołka, W., Liskowicz, A., Cholewa, M.
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 12-01-2021; Nature Publishing Group; Nature Portfolio
• Subjects: 639/766; 639/925; Emissions; Gold; Humanities and Social Sciences; multidisciplinary; Nanomaterials; Nanotechnology; Nanotubes; Science; Science (multidisciplinary); Silicon nitride
• ISSN: 2045-2322; 2045-2322
• DOI: 10.1038/s41598-020-80788-y

This paper discusses the use of nanomaterials for the improved performance of time-of-flight particle detectors based on secondary electron emission (SEE). The purpose of the research presented in this paper is to find a nanomaterial that has a higher SEE than gold. In this article, we present a measurement of the SEE properties from 1D (one-dimensional) nanostructures of ZnO and ZnO/GaN (ZnO with GaN coating) composed of a mostly regular pattern of nanotubes grown on a thin Si
3
N
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substrate. The study was performed with 4.77 meV/u Au beam. We observed an average increase of 2.5 in the SEE properties from the 1D ZnO nanotubes compared to gold.