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首页> 外文会议>Infrared systems and photoelectronic technology IV >Pyroelectric nanocomposite thin films containing Triglycine Sulfate nano-crystals with uniform polar orientation
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Pyroelectric nanocomposite thin films containing Triglycine Sulfate nano-crystals with uniform polar orientation

机译：包含具有均匀极性取向的硫酸三甘氨酸纳米晶体的热电纳米复合薄膜

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摘要

A new pyroelectric polar nanocomposite thin film is presented. A dense array of aluminium oxide cylindrical nanopores is used as a template to grow pyroelectric nano-crystals of TriGlycine Sulfate (TGS). The crystals are grown inside nanopores having an average diameter of 14±4nm and a length of 0.5 micron. The crystals are grown with a preferred crystallographic orientation having their polar axis [010] aligned in vertical to the film plane. The pyroelectric response at different temperatures is measured using the dynamic method. The dielectric characterization reveals resistivity of about 1E-9 ohm-m, dielectric loss (tan(8)) of about 0.03, and relative dielectric permittivity of about 10 at room temperature which increases to a maximum value at the ferroelectric-paraelectric phase transition. The pyroelectric coefficient of the film is about 3.5 μC/m~2K and the pyroelectric voltage figure of merit is about 40 kVm~(-1)K~(-1).
机译：提出了一种新型的热释电极性纳米复合薄膜。密集排列的氧化铝圆柱纳米孔阵列用作生长TriGlycine Sulfate（TGS）的热释电纳米晶体的模板。晶体在平均直径为14±4nm，长度为0.5微米的纳米孔内生长。晶体以优选的晶体学取向生长，其极性轴[010]垂直于薄膜平面排列。使用动态方法测量在不同温度下的热电响应。介电特性表明，室温下的电阻率约为1E-9 ohm-m，介电损耗（tan（8））约为10，相对介电常数约为10，在铁电-顺电相变时会增加到最大值。薄膜的热电系数约为3.5μC/ m〜2K，品质因数为40 kVm〜（-1）K〜（-1）。

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