Giant piezoresistive effect by optoelectronic coupling in a heterojunction

Nguyen, Thanh ORCID: https://orcid.org/0000-0002-3213-6178 and Dinh, Toan ORCID: https://orcid.org/0000-0002-7489-9640 and Foisal, Abu Riduan Md and Phan, Hoang-Phuong and Nguyen, Tuan-Khoa and Nguyen, Nam-Trung and Dao, Dzung Viet (2019) Giant piezoresistive effect by optoelectronic coupling in a heterojunction. Nature Communications, 10 (1):4139. pp. 1-8.

[img]
Preview
Text (Published Version)
s41467-019-11965-5.pdf
Available under License Creative Commons Attribution Share Alike 4.0.

Download (1MB) | Preview

Abstract

Enhancing the piezoresistive effect is crucial for improving the sensitivity of mechanical sensors. Herein, we report that the piezoresistive effect in a semiconductor heterojunction can be enormously enhanced via optoelectronic coupling. A lateral photovoltage, which is generated in the top material layer of a heterojunction under non-uniform illumination, can be coupled with an optimally tuned electric current to modulate the magnitude of the piezoresistive effect. We demonstrate a tuneable giant piezoresistive effect in a cubic silicon carbide/silicon heterojunction, resulting in an extraordinarily high gauge factor of approximately 58,000, which is the highest gauge factor reported for semiconductor-based mechanical sensors to date. This gauge factor is approximately 30,000 times greater than that of commercial metal strain gauges and more than 2,000 times greater than that of cubic silicon carbide. The phenomenon discovered can pave the way for the development of ultra-sensitive sensor technology.


Statistics for USQ ePrint 37743
Statistics for this ePrint Item
Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
Faculty/School / Institute/Centre: Historic - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering (1 Jul 2013 - 31 Dec 2021)
Faculty/School / Institute/Centre: Historic - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering (1 Jul 2013 - 31 Dec 2021)
Date Deposited: 30 Jan 2020 03:58
Last Modified: 16 Dec 2021 01:22
Uncontrolled Keywords: piezoresistive effect; mechanical sensors; optoelectronic coupling; semiconductor heterojunction
Fields of Research (2008): 02 Physical Sciences > 0204 Condensed Matter Physics > 020404 Electronic and Magnetic Properties of Condensed Matter; Superconductivity
09 Engineering > 0913 Mechanical Engineering > 091306 Microelectromechanical Systems (MEMS)
09 Engineering > 0912 Materials Engineering > 091205 Functional Materials
Fields of Research (2020): 51 PHYSICAL SCIENCES > 5104 Condensed matter physics > 510404 Electronic and magnetic properties of condensed matter; superconductivity
40 ENGINEERING > 4017 Mechanical engineering > 401705 Microelectromechanical systems (MEMS)
40 ENGINEERING > 4016 Materials engineering > 401605 Functional materials
Socio-Economic Objectives (2008): E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
E Expanding Knowledge > 97 Expanding Knowledge > 970110 Expanding Knowledge in Technology
E Expanding Knowledge > 97 Expanding Knowledge > 970102 Expanding Knowledge in the Physical Sciences
Identification Number or DOI: https://doi.org/10.1038/s41467-019-11965-5
URI: http://eprints.usq.edu.au/id/eprint/37743

Actions (login required)

View Item Archive Repository Staff Only