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Polymer-Metal Schottky Contact with Direct-Current Outputs
Hao Shao1, Jian Fang1, Hongxia Wang1
1Institute for Frontier Materials, Deakin University, Geelong, VIC, 3216, Australia.
Advanced Materials (Deerfield Beach, Fla.)
|December 8, 2015
Summary
A novel conducting polymer device generates DC voltage from mechanical stress. This flexible electronic material achieved a high current density of 218.6 μA cm(-2) using distinct metal contacts.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Electrical Engineering
Background:
- Developing self-powered electronic devices is crucial for the Internet of Things and wearable technology.
- Mechanical energy harvesting offers a sustainable power source for small electronics.
Purpose of the Study:
- To investigate the potential of a freestanding conducting polymer plate as a mechanical energy harvester.
- To characterize the DC voltage and current generation capabilities of the device under mechanical deformation.
Main Methods:
- Fabrication of a freestanding conducting polymer plate.
- Integration of a Schottky contact on one side and an Ohmic contact on the other using two different metal electrodes.
- Application of mechanical deformation to the device to measure electrical output.
Main Results:
- The device successfully generated a DC voltage upon mechanical deformation.
- An impressive output current density of up to 218.6 μA cm(-2) was achieved.
- The specific contact configurations (Schottky and Ohmic) were critical for efficient energy conversion.
Conclusions:
- Freestanding conducting polymer plates with asymmetric metal contacts are effective for mechanical energy harvesting.
- The demonstrated current density suggests potential for powering small electronic devices.
- This technology offers a promising avenue for flexible and self-powered electronics.
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