Broadband Insulator-Based Dynamic Diode with Ultrafast Hot Carriers Process
Open Access
- 13 September 2022
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Research
- Vol. 2022, 9878352
- https://doi.org/10.34133/2022/9878352
Abstract
The excitation, rebound, and transport process of hot carriers (HCs) inside dynamic diode (DD) based on insulators has been rarely explored due to the original stereotyped in which it was thought that the insulators are nonconductive. However, the carrier dynamics of DD is totally different from the static diode, which may bring a subverting insight of insulators. Herein, we discovered insulators could be conductive under the framework of DD; the HC process inside the rebounding procedure caused by the disappearance and reestablishment of the built-in electric field at the interface of insulator/semiconductor heterostructure is the main generation mechanism. This type of DD can response fast up to 1μs to mechanical excitation with an output of 10V, showing a wide band frequency response under different input frequencies from 0 to 40kHz. It can work under extreme environments; various applications like underwater communication network, self-powered sensor/detector in the sea environment, and life health monitoring can be achieved.Keywords
Funding Information
- China Postdoctoral Science Foundation (2021M692767)
- Outstanding Youth fund of Zhejiang Natural Science Foundation of China (LR21F040001)
- Zhejiang University (2013QNA5007)
- National Natural Science Foundation of China (61774135, 51551203, 51202216)
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