利用自旋交叉Fe（吡嗪）[Pt（CN）4I]纳米粒子的温度传感器的研制

IF 1.1 4区物理与天体物理 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Magnetics Letters Pub Date : 2022-07-08 DOI:10.1109/LMAG.2022.3189274

Yunji Eom;Keonmok Kim;Hyeon-Jun Lee;Sri Ramulu Torati;CheolGi Kim

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引用次数: 0

摘要

设备小型化需要具有高分辨率和精确校准的温度传感器，以便以较小的规模进行测量。我们开发了一种使用Fe2+自旋交叉（SCO）材料的光学温度传感器，该材料根据温度具有低自旋态和高自旋态。我们用适当的碘浓度调整了SCO的工作范围（295–365 K）。用显微镜观察由温度变化引起的颜色，并将其转换为以灰度表示的颜色强度。为了测试该材料，我们在金微加热器的表面覆盖了一层Fe（吡嗪）[Pt（CN）4I]SCO纳米颗粒，并将光学测量的温度与传统温度传感器的温度进行了比较。我们得出的结论是，热致变色温度传感器适用于测量微器件的温度变化，即使在环境光下也是如此。

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Development of a Temperature Sensor Using Spin-Crossover Fe(pyrazine)[Pt(CN)4I] Nanoparticles

Device miniaturization requires temperature sensors with high resolution and precise calibration for measurements at reduced scale. We developed an optical temperature sensor using Fe ²⁺ spin-crossover (SCO) material that has low and high spin states depending on temperature. We adjusted the operating range of the SCO (295–365 K) with an appropriate concentration of iodine. The color induced by temperature change was observed with a microscope and was converted to the color intensity represented in grayscale. To test the material, we covered the surface of a gold microheater with a layer of Fe(pyrazine)[Pt(CN) ₄ I] SCO nanoparticles and compared optically measured temperatures with those from a conventional temperature sensor. We conclude that the thermochromic temperature sensor is suitable for measuring temperature changes in microdevices, even in ambient light.

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来源期刊

IEEE Magnetics Letters PHYSICS, APPLIED-

CiteScore

2.40

自引率

0.00%

发文量

期刊介绍： IEEE Magnetics Letters is a peer-reviewed, archival journal covering the physics and engineering of magnetism, magnetic materials, applied magnetics, design and application of magnetic devices, bio-magnetics, magneto-electronics, and spin electronics. IEEE Magnetics Letters publishes short, scholarly articles of substantial current interest. IEEE Magnetics Letters is a hybrid Open Access (OA) journal. For a fee, authors have the option making their articles freely available to all, including non-subscribers. OA articles are identified as Open Access.