Screen-Printed Electroluminescent Lamp Modified with Graphene Oxide as a Sensing Device
Abdulhadee Yakoh1, Ruslan Álvarez-Diduk1, Orawon Chailapakul
1Nanobioelectronics and Biosensors Group, Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC , The Barcelona Institute of Science and Technology , Campus UAB , Bellaterra, 08193 Barcelona , Spain.
ACS Applied Materials & Interfaces
|May 31, 2018
Summary
A novel screen-printed electroluminescent display detects ionic concentration and humidity. This cost-effective device, coupled with a smartphone, enables real-time respiration monitoring and responsive sensing applications.
Area of Science:
- Materials Science
- Electrical Engineering
- Sensor Technology
Background:
- Electroluminescent displays (ELDs) offer unique light-emitting properties.
- Integrating sensing capabilities into displays can lead to novel diagnostic tools.
- Graphene oxide nanocomposites enhance material conductivity and sensitivity.
Purpose of the Study:
- To develop a versatile screen-printed electroluminescent display with sensing functionalities.
- To introduce a novel humidity sensor based on functionalized ELDs.
- To explore real-time monitoring applications using smartphone integration.
Main Methods:
- Fabrication of a screen-printed electroluminescent display.
- Functionalization with graphene oxide nanocomposite for humidity sensing.
- Utilizing the relationship between light intensity and conductivity for detection.
- Coupling the display with a smartphone camera for data acquisition.
Main Results:
- Demonstrated detection of ionic concentration in conductive species.
- Successfully developed and tested a humidity sensor using graphene oxide-functionalized ELD.
- Achieved real-time human respiration monitoring via smartphone integration.
- Showcased a responsive display activated by conductive media like pencil drawings.
Conclusions:
- The screen-printed electroluminescent display exhibits versatile sensing capabilities.
- The developed humidity sensor and respiration monitoring system show promise for point-of-care diagnosis.
- The cost-effectiveness and ease of manufacturing facilitate broad application potential.
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