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Zinc oxide-paper based sensor for photoconductive ultraviolet detection
- Publication Year :
- 2020
- Publisher :
- Zenodo, 2020.
-
Abstract
- Paper based sensor is the new technology to fabricate a simple, portable, and low cost device that exhibits the comparable properties and functions with those fabricated using complex fabrication process. Paper based sensor is usually applied in environmental monitoring, health diagnostics, and food quality control. This research is focusing on the paper based sensor that will contribute to the development of Ultraviolet (UV) sensor. The fabrication of the sensor was done by using different grade of pencil, namely 6B and 2B on different type of paper. The different grade of pencil corresponds to different percentage of graphite and clay. As for the type of paper, A4 printing paper and Whatman filter paper were used. UV sensing operation was analyzed from the measurement of current-voltage (I-V) characteristics under the exposure of UV light. Zinc oxide (ZnO) was coated on the sensor to facilitate the detection in the presence of UV. The sample fabricated using 6B pencil grade on A4 printing paper and with ZnO coating showed a better UV sensing performance compared to other samples. This is due to the high conduction of 6B pencil grade and smooth surface of A4 printing paper. The ZnO coating increased the sensor sensitivity and response towards the UV light. These findings provide valuable information which can be used in fabricating a low-cost and simple UV paper sensor.
- Subjects :
- Paper
Control and Optimization
Fabrication
Materials science
Computer Networks and Communications
chemistry.chemical_element
02 engineering and technology
Zinc
engineering.material
medicine.disease_cause
01 natural sciences
Coating
medicine
Graphite
Electrical and Electronic Engineering
Sensor
Ultraviolet
Filter paper
business.industry
Photoconductivity
010401 analytical chemistry
021001 nanoscience & nanotechnology
0104 chemical sciences
Pencil (optics)
chemistry
Hardware and Architecture
Signal Processing
engineering
ZnO
Optoelectronics
0210 nano-technology
business
Information Systems
Subjects
Details
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....670eb2005181973d04693fbeaa2da223