1.2 - High Detectivity of Pyroelectric Detectors based on Relaxor-PbTiO3 Single Crystals
作者： A. Movchikova , N. Neumann , S.-G. Lee , M. Es-Souni , M. Dietze
DOI: 10.5162/IRS2013/I1.2
关键词: Indium 、 Materials science 、 Pyroelectricity 、 Lithium tantalate 、 Pyroelectric crystal 、 Titanate 、 Optoelectronics 、 Specific detectivity 、 Flame detection 、 Dielectric
摘要: In this work the suitability of Mn-doped lead indium niobate-lead magnesium titanate (xPb(In1/2Nb1/2)O3-yPb(Mg1/3Nb2/3)O3-(1-x-y)PbTiO3) single crystals in pyroelectric detectors was evaluated and compared with standard lithium tantalate (LiTaO3). Pyroelectric dielectric measurements confirmed an increased processing operating temperature range due to higher phase transitions 0.26Pb(In1/2Nb1/2)O3-0.42Pb(Mg1/3Nb2/3)O3-0.32PbTiO3:Mn. Due high coefficient, relaxor-lead based sensors perform increase specific detectivity relation detectors. The evaluation shows good results design fabrication for long-range flame detection high-resolution gas analysis.
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