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Preparation of Graphene-Supported Microwell Liquid Cells for In Situ Transmission Electron Microscopy
Published on: July 15, 2019
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Single-Layer Graphene-Based Transparent and Flexible Multifunctional Electronics for Self-Charging Power and
Sungwoo Chun, Wonkyeong Son1, Gwangyeob Lee2
1Division of Smart Textile Convergence Research , DGIST , Daegu 42988 , Republic of Korea.
ACS Applied Materials & Interfaces
|February 14, 2019
Summary
This study presents a transparent, flexible electronic system combining a self-charging power system (SCPS) and a touch sensor. Utilizing single-layer graphene (SLG) electrodes, it enables multifunctional devices for wearable electronics.
Area of Science:
- Materials Science
- Electronics Engineering
- Energy Storage
Background:
- Portable and wearable electronics demand multifunctional capabilities and integrated self-charging power systems (SCPS).
- Transparent electronics offer expanded applications in flexible displays and skin-attachable devices.
- Achieving integrated power and sensing in a single, transparent, and flexible platform is a key challenge.
Purpose of the Study:
- To develop a transparent and flexible multifunctional electronic system integrating an all-in-one SCPS and a touch sensor.
- To utilize single-layer graphene (SLG) as a versatile electrode material for both power generation/storage and sensing.
- To demonstrate a novel device architecture enabling simultaneous supercapacitor and touch sensing functionalities.
Main Methods:
- Fabrication of a transparent and flexible device using single-layer graphene (SLG) films as electrodes.
- Integration of a supercapacitor and a triboelectric nanogenerator (TENG) into a single-layer architecture.
- Utilizing a polyvinyl alcohol-lithium chloride-soaked polyacrylonitrile electrospun mat separator between SLG electrodes for capacitive sensing and supercapacitor function.
Main Results:
- Demonstrated a single-device architecture functioning as both a supercapacitor and a touch sensor.
- Successfully fabricated a transparent, all-in-one SCPS by integrating a TENG with a supercapacitor.
- Achieved high-performance electric power generation and storage capabilities with the transparent and flexible system.
Conclusions:
- The proposed system offers a promising solution for creating ultrathin, lightweight, transparent, and flexible electronic devices.
- The integration of SCPS and touch sensing in a single device paves the way for advanced wearable electronics.
- The use of SLG electrodes highlights its potential for multifunctional transparent electronic applications.
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