Stange, D, Schulte-Braucks, C, von den Driesch, N et al. (12 more authors) (2016) High Sn-Content GeSn Light Emitters for Silicon Photonics. In: Luryi, S, Xu, J and Zaslavsky, A, (eds.) Future Trends in Microelectronics: Journey into the Unknown. Wiley , pp. 181-193. ISBN 9781119069225
Abstract
The present chip technology is based on silicon with increasing number of other materials integrated into electrical circuits. This chapter presents a systematic photoluminescence (PL) study of compressively strained, direct-bandgap GeSn alloys, followed by the analysis of two different optical source designs. First, a direct bandgap GeSn light emitting diode (LED) will be characterized via power-and temperature-dependent electroluminescence (EL) measurements. Then, lasing will be demonstrated in a microdisk (MD) resonator under optical pumping. The integration of direct-bandgap GeSn-based devices as a light source for on-chip communications offers the possibility to monolithically integrate the complete photonic circuit within mainstream silicon technology. The chapter describes material properties using Ge0.875Sn0.125 epilayers of various thicknesses. Temperature-dependent integrated PL intensity is a suitable method to determine whether a semiconductor has a direct or indirect fundamental bandgap. In conclusion, the chapter presents growth and optical characterization of high-quality GeSn alloys with very high Sn content.
Metadata
Item Type: | Book Section |
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Authors/Creators: |
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Editors: |
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Keywords: | direct-bandgap GeSn alloys; GeSn light emitting diode; microdisk resonator; optical pumping; photoluminescence; temperature-dependent electroluminescence measurements |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Pollard Institute (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 07 Nov 2017 16:27 |
Last Modified: | 07 Nov 2017 16:27 |
Status: | Published |
Publisher: | Wiley |
Identification Number: | 10.1002/9781119069225.ch2-6 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:123533 |