Ge(Sn) nano-island/Si heterostructure photodetectors with plasmonic antennas
Schlykow V, Manganelli CL, Roemer F, Clausen C, Auge L, Schulze J, Katzer J, Schubert MA, Witzigmann B, Schroeder T, Capellini G, Fischer IA (2020)
Publication Type: Journal article
Publication year: 2020
Journal
Book Volume: 31
Article Number: 345203
Journal Issue: 34
Abstract
We report on photodetection in deep subwavelength Ge(Sn) nano-islands on Si nano-pillar substrates, in which self-aligned nano-antennas in the Al contact metal are used to enhance light absorption by means of local surface plasmon resonances. The impact of parameters such as substrate doping and device geometry on the measured responsivities are investigated and our experimental results are supported by simulations of the three-dimensional distribution of the electromagnetic fields. Comparatively high optical responsivities of about 0.1 A W-1 are observed as a consequence of the excitation of localized surface plasmons, making our nano-island photodetectors interesting for applications in which size reduction is essential.
Authors with CRIS profile
Involved external institutions
Forschungszentrum Jülich / Research Centre Jülich (FZJ)
Germany (DE)
Leibniz-Institut für innovative Mikroelektronik / IHP GmbH - Innovations for High Performance Microelectronics
Germany (DE)
Universität Kassel
Germany (DE)
Universität Stuttgart
Germany (DE)
Leibniz-Institut für Kristallzüchtung / Leibniz Institute for Crystal Growth
Germany (DE)
Brandenburgische Technische Universität Cottbus-Senftenberg (BTU)
Germany (DE)
Germany (DE)
Leibniz-Institut für innovative Mikroelektronik / IHP GmbH - Innovations for High Performance Microelectronics
Germany (DE)
Universität Kassel
Germany (DE)
Universität Stuttgart
Germany (DE)
Leibniz-Institut für Kristallzüchtung / Leibniz Institute for Crystal Growth
Germany (DE)
Brandenburgische Technische Universität Cottbus-Senftenberg (BTU)
Germany (DE)
How to cite
APA:
Schlykow, V., Manganelli, C.L., Roemer, F., Clausen, C., Auge, L., Schulze, J.,... Fischer, I.A. (2020). Ge(Sn) nano-island/Si heterostructure photodetectors with plasmonic antennas. Nanotechnology, 31(34). https://doi.org/10.1088/1361-6528/ab91ef
MLA:
Schlykow, Viktoria, et al. "Ge(Sn) nano-island/Si heterostructure photodetectors with plasmonic antennas." Nanotechnology 31.34 (2020).
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