Pyroelectric Mg-modified PbTiO3 thin films and devices for thermal infrared detection
Source abstract
Abstract
High-performance pyroelectric infrared (IR) detectors have been fabricated using magnesium-doped lead titanate (Pb1-xMgxTiO3 (PMT), with x=0∼0.08) thin films deposited on Pt/SiO2/Si substrates by diol-based sol–gel processing. The randomly oriented PMT thin film exhibits a relatively small dielectric constant and a large pyroelectric coefficient. The pyroelectric characteristics of detectors with various magnesium contents, as a function of modulation frequency, were conducted. It was found that PMT(6) has a large voltage responsivity of 5280 (V/W) at 20 Hz, and a specific detectivity (D*) of 5.12×107 cm Hz1/2/W at 100 Hz. These results indicate that the PMT thin film with x=0.06 was most suitable for application as high-performance pyroelectric thin-film detectors.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Optical and Acousto-Optic Technologies · Thermography and Photoacoustic Techniques · Photonic and Optical Devices
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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