Abstract.
Quality pyroelectric Ba0.8Sr0.2TiO3 films have been successfully fabricated by a sol-gel processing using a highly diluted precursor solution. The remnant polarization of the films decreases with the temperature increasing, which results in a large pyroelectric coefficient at room temperature. Infrared response measured using a 500-K chopped blackbody at room temperature exhibits a typical pyroelectric response waveform. Frequency dependence of the infrared response measurement for a pixel with area of 2.5×10-3 cm2 showed that the maximum response output voltage of 3.2 mV was obtained at 6 Hz. Better infrared response can be expected by the improvement in thermal isolation of the pixels and electrode materials.
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Received: 26 April 2000 / Accepted: 9 May 2000 / Published online: 9 August 2000
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Cheng, JG., Tang, J., Zhang, AJ. et al. Sol-gel-derived pyroelectric barium strontium titanate thin films for infrared detector applications . Appl Phys A 71, 667–670 (2000). https://doi.org/10.1007/s003390000577
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DOI: https://doi.org/10.1007/s003390000577