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Pyroelectric infrared detector based on polyaniline/polyvinylidene fluoride blend

机译:基于聚苯胺/聚偏二氟乙烯共混物的热释电红外探测器

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In this work a novel and straightforward pyroelectric infrared detector based on blend of dodecylbenzene sulfonic acid (DBSA) doped polyaniline (PANI) and polyvinylidene fluoride (PVDF) with different weight percentages of PANI was fabricated. The crystalline and morphological properties of this blend were characterized using X-ray diffraction and scanning electron microscope, respectively. It was found that doped PANI hinders alpha-phase while promotes the polar beta-phase formation of PVDF. The voltage responsivity (R-v), noise equivalent power (NEP), and specific detectivity (D*) of PANI/PVDF blend were measured in the range from 0.01 Hz to 1000 Hz using an electrical chopped circuit. The optimum values of Rv and D* were 157 V/W and 1.82 x 10(6) cm Hz(1/2)/W, respectively, while the minimum value of NEP was about 2.67 x 10(-7) W/root Hz for the blend of 10 wt.% of PANI. (C) 2016 Elsevier B.V. All rights reserved.
机译:在这项工作中,基于十二烷基苯磺酸(DBSA)掺杂的聚苯胺(PANI)和聚偏二氟乙烯(PVDF)的混合物,以不同的PANI重量百分比,制造了一种新颖而直接的热释电红外探测器。分别使用X射线衍射和扫描电子显微镜表征了该共混物的晶体和形态特性。发现掺杂的PANI阻碍了α相,而促进了PVDF的极性β相的形成。使用电斩波电路在0.01 Hz至1000 Hz的范围内测量PANI / PVDF混合物的电压响应率(R-v),噪声等效功率(NEP)和比检测率(D *)。 Rv和D *的最佳值分别为157 V / W和1.82 x 10(6)cm Hz(1/2)/ W,而NEP的最小值约为2.67 x 10(-7)W /根10重量%PANI的混合物的Hz。 (C)2016 Elsevier B.V.保留所有权利。

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