A demonstration of the UV light response of ZnO+0.01Sb2O3 ceramics and application for UV light sensor and UV light switch using LabVIEW-based measurement system

Thongchai Panmatarith, Kingkan Poatong

Abstract


In the current paper, ZnO+0.01Sb2O3 ceramics were prepared using the mixed oxide
method. A LabVIEW- based measurement systems were prepared and used for all
experimentation. Ultraviolet light (UV) response of ZnO+0.01Sb2O3 ceramics have been
investigated. Result showed that the resistance of this sample at room temperature (30°C)
decreased in the interval of 3.5 MΩ –1.65 MΩ in the presence of UV light with intensity of
2530 Lux. The measured UV light responsivity (G) was -52.857 %. The negative value of
UV light responsivity showed that the resistance of this sample decreased in the presence of
UV light. This sample exhibited UV light response material and indicated their potential
application as UV light sensor. The resistance versus UV light intensity characteristics was
determined. We present the application of ZnO+0.01Sb2O3 ceramics for UV light sensor.
The operation of this sample for UV light sensor used the relationship between voltage drop
across the sample and UV optical intensity. This relation was used for the measurement of
UV light intensity. In addition, this ZnO+0.01Sb2O3 ceramics can be used for UV light
switch device testing. The operation of this sample for UV switch device used the result
from comparison between voltage drop across the sample and setpoint voltage (3.979 V).
Optical alarm was used for showing the operation of UV light switch device. This sample
and system will be used for teaching and learning works in future.

Keywords : optical response ceramics , ultraviolet light sensor , ultraviolet light switch, LabVIEW.


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