Silicon nanosheets as candidates for silicon-based optoelectronics

B. J. Ryan, B. T. Diroll, Y. Guo, C. J. Dolgos, Q. H. Wang, L. T. Roling, M. G. Panthani

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The growth in computational ability over the past decades has positively impacted global development, the economy, healthcare, and science. As on-chip components are approaching the atomic scale, alternative paradigms are needed to address the thermal and electronic issues that impose bottlenecks for computing. One approach to address this is with optoelectronics. However, silicon-the backbone of microelectronics-is a poor choice due to its indirect bandgap, while existing optoelectronic materials are incompatible with CMOS infrastructure. Monolayer silicon nanosheets (SiNSs) are an intriguing material that exhibit photoluminescence, and are compositionally-compatible with the CMOS process. Here, we synthesize and characterize monolayer SiNSs, and show spectroscopic evidence that they exhibit a quasi-direct bandgap, which is corroborated by DFT calculations. We probe their thermal stability, demonstrating their structure and photoluminescence are stable beyond the required operating temperatures for computing applications. These optoelectronic properties, CMOS-compatibility, and stability make SiNSs a viable candidate for silicon-based photonics.

Original languageEnglish (US)
Title of host publication239th ECS Meeting with the 18th International Meeting on Chemical Sensors, IMCS 2021 - Quantum Dot Science and Technology
EditorsD. K. Ko, D. Mariotti, V. Svrcek, S. J. Oh
PublisherIOP Publishing Ltd
Pages3-17
Number of pages15
Edition1
ISBN (Electronic)9781607689133
DOIs
StatePublished - 2021
Event239th ECS Meeting with the 18th International Meeting on Chemical Sensors, IMCS 2021 - Chicago, United States
Duration: May 30 2021Jun 3 2021

Publication series

NameECS Transactions
Number1
Volume102
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Conference

Conference239th ECS Meeting with the 18th International Meeting on Chemical Sensors, IMCS 2021
Country/TerritoryUnited States
CityChicago
Period5/30/216/3/21

ASJC Scopus subject areas

  • Engineering(all)

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