| Abstrakt: |
Al-doped SnO2 (Al-SnO2) films with various tin chloride (SnCl2.2H2O) precursor concentrations have been prepared on glass slides via ultrasonic spray pyrolysis (USP) technique. The objective of this work is to investigate the effect of SnCl2.2H2O precursor concentration on the properties of Al-SnO2 and the performance of the heater utilizing (Al-SnO2) films. To investigate the influence of SnCl2.2H2O concentration on the properties of the sample and performance of the heater, the precursor concentration has been varied from 0.6 to 1.2 M at 0.2 M interval. The samples contain the main cassiterite SnO2 phase existing at the diffraction angles of 27.14, 34.41, 38.55, 52.26, and 54.28°. The sample exhibits four fundamental vibrational modes at around 80.97, 780.50, 1080.13, and 2518.38 cm−1, respectively. The morphology shows grains that are octahedral in shape with the highest size corresponding to the sample having 1.0 M concentration. The optical transmittance changes significantly with SnCl2.2H2O concentration with the sample prepared with 0.8 M having the highest transmittance in the visible region. Photoluminescence (PL) intensity is also found to vary significantly with SnCl2.2H2O concentration with the sample prepared at 0.8 M possessing the highest PL intensity in the visible region. The sample prepared with 0.8 M concentration of SnCl2.2H2O can be regarded as the best conductor as a result of its lowest sheet resistance (Rs). The highest temperature generated by Al-SnO2 is 79.3 °C. The result of the study showed that Al-SnO2 have the potential to be used as a transparent film heater. [ABSTRACT FROM AUTHOR] |
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