Fig. 1.
(a) The molecular structure of the orange dye (OD). (b) Schematic diagrams of the samples, substrate (1), electrodes (2), OD-CNT composite film (3), and terminals (4) and (5).
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| Citation: |
Kh. S. Karimov, Noshin Fatima, Khaulah Sulaiman, M. Mahroof Tahir, Zubair Ahmad, A. Mateen. Sensitivity enhancement of OD- and OD-CNT-based humidity sensors by high gravity thin film deposition technique[J]. Journal of Semiconductors, 2015, 36(3): 034005. doi: 10.1088/1674-4926/36/3/034005
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Kh. S. Karimov, N Fatima, K Sulaiman, M. M. Tahir, Z Ahmad, A. Mateen. Sensitivity enhancement of OD- and OD-CNT-based humidity sensors by high gravity thin film deposition technique[J]. J. Semicond., 2015, 36(3): 034005. doi: 10.1088/1674-4926/36/3/034005.
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Sensitivity enhancement of OD- and OD-CNT-based humidity sensors by high gravity thin film deposition technique
DOI: 10.1088/1674-4926/36/3/034005
More Information
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Abstract
The humidity sensing properties of the thin films of an organic semiconductor material orange dye (OD) and its composite with CNTs deposited at high gravity conditions have been reported. Impedance, phase angle, capacitance and dissipation of the samples were measured at 1 kHz and room temperature conditions. The impedance decreases and capacitance increases with an increase in the humidity level. It was found that the sensitivity of the OD-based thin film samples deposited at high gravity condition is higher than the samples deposited at low gravity condition. The impedances and capacitance sensitivities of the of the samples deposited under high gravity condition are 6.1 times and 1.6 times higher than the films deposited under low gravity condition.-
Keywords:
- orange dye,
- sensor,
- composite,
- impedance,
- capacitance
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References
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