Abstract
Silicon and Germanium have an indirect band gap, which limits their use in optoelectronic devices Here, we show that we can create a direct band gap in Si1-xGexalloys by changing the crystal structure from cubic to hexagonal. DFT calculations predict a strong optical transition for 0.65>x>1. Hex-Si1-xGexalloys have been fabricated and efficient light emission has been observed.
Original language | English |
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Title of host publication | 2021 Silicon Nanoelectronics Workshop |
Publisher | Institute of Electrical and Electronics Engineers |
Number of pages | 2 |
ISBN (Electronic) | 978-4-86348-781-9 |
DOIs | |
Publication status | Published - 2021 |
Event | 26th Silicon Nanoelectronics Workshop, SNW 2021 - Virtual, Online, Japan Duration: 13 Jun 2021 → 13 Jun 2021 Conference number: 26 |
Conference
Conference | 26th Silicon Nanoelectronics Workshop, SNW 2021 |
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Abbreviated title | SNW 2021 |
Country/Territory | Japan |
City | Virtual, Online |
Period | 13/06/21 → 13/06/21 |