Physics-Based Device Models and Progress Review for Active Piezoelectric Semiconductor Devices.

Area of Science:

• Materials Science
• Nanotechnology
• Physics

Background:

• Piezoelectric devices convert mechanical stress into electrical signals via elastic deformation of crystalline materials.
• These devices offer advantages like scalability, light weight, low power consumption, and integrated amplification, crucial for modern electronics.
• Applications span wearables, medical devices, and robotics, highlighting their growing importance.

Purpose of the Study:

• To review recent progress in active piezoelectric devices.
• To classify piezoelectric devices based on material dimensionality (1D, 2D, and 3D).
• To present physics-based device models for quantifying piezoelectric responses across different material dimensions.

Main Methods:

• Literature review of recent advancements in active piezoelectric devices.
• Classification of devices by material dimensionality: nanowires (1D), 2D materials, and thin films (3D).
• Presentation and discussion of physics-based device models for analyzing piezoelectric transduction.

Main Results:

• Detailed review of transduction mechanisms and state-of-the-art devices for 1D, 2D, and 3D piezoelectric materials.
• Physics-based models are presented to quantify piezoelectric responses in various material dimensionalities.
• The review highlights the diverse range of applications driven by these piezoelectric devices.

Conclusions:

• Active piezoelectric devices are advancing rapidly, with significant progress in 1D, 2D, and 3D material forms.
• Physics-based modeling provides a robust framework for understanding and optimizing piezoelectric performance.
• Future applications in energy harvesting, sensing, and biomedical fields are promising, driven by material innovations and device integration.