Advanced Ultrasound Energy Transfer Technologies using Metamaterial Structures

Area of Science:

• Materials Science and Engineering
• Acoustics
• Energy Harvesting

Background:

• Wireless energy transfer (WET) is advancing, with ultrasound-driven generators showing significant potential.
• Ultrasonic metamaterials (UMMs) offer novel structures to improve the efficiency of ultrasound energy receivers (US-ETs).
• US-ETs, including piezoelectric (US-PENGs) and triboelectric nanogenerators (US-TENGs), benefit from UMM integration.

Purpose of the Study:

• To review the fundamentals, classification, and design engineering of UMMs for WET applications.
• To present the topical progress of innovative UMMs in US-ETs.
• To explore the advanced applications of metamaterials in US-PENGs and US-TENGs.

Main Methods:

• Literature review of UMMs and their application in ultrasound energy harvesting.
• Conceptual presentation of UMM advancements in US-ETs.
• Categorization of metamaterial approaches in US-PENGs and US-TENGs.

Main Results:

• UMMs can significantly enhance the mechanical and physical features of US-ETs.
• Innovative UMM designs are being developed for improved ultrasound energy reception.
• Metamaterial-enhanced generators show promise in various categorized applications.

Conclusions:

• UMMs are crucial for advancing ultrasound-driven WET technologies.
• Further research into UMMs can revolutionize integrated energy transfer systems.
• Transforming metamaterials into active mediums for generators holds significant future potential.