Application of ba0.5sr0.5tio3 (bst) film doped with ruo2 (0%, 2%, 4% and 6%) on a rice-stalk cutting robot model based on a line follower with hc-05 bluetooth control

Siskandar R., Dio F.C., Alatas H., Irzaman I.

Computer Engineering Study Program, College of Vocational Studies, IPB University, West Java, Bogor, 16151, Indonesia; Department of Physics, Faculty of Mathematics and Science, IPB University, Meranti Street, Dramaga West Java, Bogor, 16680, Indonesia


Ba0.5Sr0.5TiO3 (BST) film doped with RuO2 with varying concentrations (0%, 2%, 4%, and 6%) on a p-type (100) silicon substrate has been successfully grown using the Chemical Solution Deposition (CSD) method and spin coating at a rotational speed of 3000 rpm for 30 seconds. The film on the substrate was then heated at 850oC for 15 hours. BST film+RuO2 variations were characterized for their sensitivity as a light sensor. BST film+RuO2 variations were tested with a varied light source and reflective surface colors. Thin films have a range at the visible light wavelength, so LED lights were used as the light source in the present study. The light source selected was the blue LED because it had a high contrast in differentiating between dark and light-colored surfaces. Various electronic circuits assisted sensitivity characterization with the aim to produce a sensor that is highly sensitive to light. The response of BST film+ RuO2 variations differed according to the RuO2 doping concentration. BST film doped with RuO2 6% had a very good response to changes in light, so this film was applied as the line detector sensor in the line follower-based rice-stalk cutter model with an HC-05 Bluetooth control. Before being integrated with the microcontroller, the output voltage of the BST film was strengthened using an op-amp circuit so that the microcontroller could read the output voltage of the BST film. © 2021 by the authors.

Ba0.55Sr0.45TiO3 (BST) film; Line detector; Microcontroller; Op-amp; RuO2


Biointerface Research in Applied Chemistry

Publisher: AMG Transcend Association

Volume 12, Issue 2, Art No , Page 2138 – 2151, Page Count

Journal Link:

doi: 10.33263/BRIAC122.21382151

Issn: 20695837



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