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首页> 外文期刊>Sensors and Actuators, A. Physical >Novel electrode layout for relaxor single crystal pyroelectric detectors with enhanced responsivity and specific detectivity
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Novel electrode layout for relaxor single crystal pyroelectric detectors with enhanced responsivity and specific detectivity

机译：弛豫单晶热释电探测器的新型电极布局，具有更高的响应度和比探测率

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摘要

A distributed electrode structure of sensitive element based on Mn-doped Pb(Mg-1/3 Nb-2/3)O-3-0.29PbTiO(3) single crystals for high-end pyroelectric infrared detectors has been proposed, demonstrating a notably superior pyroelectric response. Under the optimal electrode distance of 0.5 mm, the figure of merit for detectivity is up to 39.9 x 10(-5) Pa-1/2. An ultrahigh responsivity of 864 V/W and specific detectivity of 1.49 x 10(9) cm Hz(1/2)/W at 10 Hz are observed, approximately 3.6 and 1.4 times higher, respectively, than that of the conventional faced electrode structure. The enhanced responsivity and specific detectivity of the distributed electrode structure will make PMNT based detectors with voltage mode promising in practical use of sensors. (C) 2015 Published by Elsevier B.V.
机译：提出了一种基于锰掺杂的Pb（Mg-1 / 3 Nb-2 / 3）O-3-0.29PbTiO（3）单晶的敏感元件的分布式电极结构，用于高端热释电红外探测器。优异的热电响应。在0.5 mm的最佳电极距离下，检测的品质因数高达39.9 x 10（-5）Pa-1 / 2。在10 Hz时观察到864 V / W的超高响应度和1.49 x 10（9）cm Hz（1/2）/ W的比检测率，分别比常规面对电极结构高3.6倍和1.4倍。分布式电极结构的增强的响应度和比检测率将使基于PMNT的电压模式检测器在传感器的实际应用中大有希望。 （C）2015由Elsevier B.V.发布

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