Abstract
Thick films of nickel phthalocyanine (NiPc) were fabricated using the screen-printing technique. The effects of γ-irradiation on the optical and electrical properties of these films were studied in order to establish their suitability for dosimetry applications. The analysis of the optical properties were carried out in view of the models proposed by Mott & Davis. The experimental data have shown the predominance of the direct allowed transition for the as-printed NiPc thick film and the indirect allowed for the irradiated samples. The energy values of the optical band gap showed irregular slight decreases when the NiPc thick films were irradiated. The as-printed and irradiated Ag/NiPc/Ag devices demonstrated a Schottky conduction mechanism. The values of the absorbance and the capacitance of the NiPc thick films showed a highly consistent and continuous linear changes when exposed to various doses of γ-radiation.
| Original language | English |
|---|---|
| Pages (from-to) | 760-765 |
| Number of pages | 6 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 4931 |
| Publication status | Published - 2002 |
| Event | 2002 International Symposium on Microelectronics - Denver, CO, United States Duration: 4 Sep 2002 → 6 Sep 2002 |
Keywords
- Dosimetry
- Electrical properties
- Nickel phthalocyanine
- NiPc
- Optical properties
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