Self-Powered Sensors: New Opportunities and Challenges from Two-Dimensional Nanomaterials
- Authors
- Lee, Eunkwang; Yoo, Hocheon
- Issue Date
- Aug-2021
- Publisher
- MDPI
- Keywords
- two-dimensional nanomaterials; optical sensors; self-power; nanostructure devices; sensor devices
- Citation
- MOLECULES, v.26, no.16
- Journal Title
- MOLECULES
- Volume
- 26
- Number
- 16
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/82062
- DOI
- 10.3390/molecules26165056
- ISSN
- 1420-3049
- Abstract
- Nanomaterials have gained considerable attention over the last decade, finding applications in emerging fields such as wearable sensors, biomedical care, and implantable electronics. However, these applications require miniaturization operating with extremely low power levels to conveniently sense various signals anytime, anywhere, and show the information in various ways. From this perspective, a crucial field is technologies that can harvest energy from the environment as sustainable, self-sufficient, self-powered sensors. Here we revisit recent advances in various self-powered sensors: optical, chemical, biological, medical, and gas. A timely overview is provided of unconventional nanomaterial sensors operated by self-sufficient energy, focusing on the energy source classification and comparisons of studies including self-powered photovoltaic, piezoelectric, triboelectric, and thermoelectric technology. Integration of these self-operating systems and new applications for neuromorphic sensors are also reviewed. Furthermore, this review discusses opportunities and challenges from self-powered nanomaterial sensors with respect to their energy harvesting principles and sensing applications.
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