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Sensors 2002, 2(5), 174-184; doi:10.3390/s20500174
Article

γ-radiation Sensor Using Optical and Electrical Properties of Manganese Phthalocyanine (MnPc) Thick Film

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Received: 16 April 2002; Accepted: 10 May 2002 / Published: 12 May 2002
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Abstract: Manganese phthaloyanine polymer thick films were fabricated using screenprinting techniques. The optical parameters were obtained from the analysis of the absorption spectra over a wavelength range of 385-900nm. The d.c. electrical measurements were carried out in a range of 0-30 volts. The effects of γ-radiation on the optical and the electrical properties were investigated for dosimetry applications. The optical energy band gaps of these films showed a decrease in their values with the increase in the radiation dose. The electronic transition has changed from direct allowed for the as-printed films (unexposed to γ-rays) to indirect allowed for the irradiated samples. Both the as-printed and irradiated Ag/MnPc/Ag devices demonstrated a Schottky conduction mechanism. Both the absorbance and the capacitance of the MnPc thick films displayed a highly consistent linear response to γ-ray exposure.
Keywords: Optical band gap; γ-rays; Dosimetry; Manganese phthalocyanine; MnPc Optical band gap; γ-rays; Dosimetry; Manganese phthalocyanine; MnPc
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Arshak, A.; Zleetni, S.; Arshak, K. γ-radiation Sensor Using Optical and Electrical Properties of Manganese Phthalocyanine (MnPc) Thick Film. Sensors 2002, 2, 174-184.

AMA Style

Arshak A, Zleetni S, Arshak K. γ-radiation Sensor Using Optical and Electrical Properties of Manganese Phthalocyanine (MnPc) Thick Film. Sensors. 2002; 2(5):174-184.

Chicago/Turabian Style

Arshak, A.; Zleetni, S.; Arshak, K. 2002. "γ-radiation Sensor Using Optical and Electrical Properties of Manganese Phthalocyanine (MnPc) Thick Film." Sensors 2, no. 5: 174-184.



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