Crystal Growth of Triglycine Sulfate Crystals Under 40-GHz Irradiation and the Infrared Detection of their Device Characteristics

IF 2.5 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC Journal of Electronic Materials Pub Date : 2024-06-06 DOI:10.1007/s11664-024-11181-y

Kazuma Iwasaki, Sho Fujii, Tsuyoshi Kimura, Masaya Yamamoto, Tadao Tanabe

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Abstract

Triglycine sulfate (TGS) crystals are pyroelectric crystals that exhibit ferroelectricity in a room-temperature environment. They have application as infrared detector elements. In this study, it was found that irradiation with 40-GHz electromagnetic waves accelerates the growth of TGS crystals, with a growth rate about 2.2 times faster than that without irradiation. This leads to a reduction in process time and therefore crystals that will be used as elements in the production of detectors can be obtained more quickly. The TGS crystals were irradiated with a CO₂ laser at a wavelength of 10.6 μm. The maximum voltage value obtained was about 0.24 V, the photosensitivity was 24.7 V/W, and the noise equivalent power (NEP) was 2.7 × 10⁻⁸ W/Hz^½. In addition, it was confirmed that the sensitivity increased with decreasing area of the crystal. These results show that TGS crystals grown under electromagnetic irradiation can be used as infrared detector elements.

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40 GHz 辐照下硫酸三甘氨酸晶体的生长及其器件特性的红外探测

硫酸甘油三酯（TGS）晶体是一种在室温环境下表现出铁电性的热释电晶体。应用于红外探测元件。本研究发现，40 ghz电磁波辐照加速了TGS晶体的生长，其生长速度比未辐照时快约2.2倍。这导致过程时间的减少，因此晶体将用于生产探测器的元素可以更快地获得。用波长为10.6 μm的CO2激光照射TGS晶体。得到的最大电压值约为0.24 V，光敏度为24.7 V/W，噪声等效功率（NEP）为2.7 × 10−8 W/Hz½。此外，还证实了灵敏度随晶体面积的减小而增大。这些结果表明，在电磁辐照下生长的TGS晶体可以用作红外探测元件。图形抽象

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来源期刊

Journal of Electronic Materials 工程技术-材料科学：综合

CiteScore

4.10

自引率

4.80%

发文量

693

审稿时长

3.8 months

期刊介绍： The Journal of Electronic Materials (JEM) reports monthly on the science and technology of electronic materials, while examining new applications for semiconductors, magnetic alloys, dielectrics, nanoscale materials, and photonic materials. The journal welcomes articles on methods for preparing and evaluating the chemical, physical, electronic, and optical properties of these materials. Specific areas of interest are materials for state-of-the-art transistors, nanotechnology, electronic packaging, detectors, emitters, metallization, superconductivity, and energy applications. Review papers on current topics enable individuals in the field of electronics to keep abreast of activities in areas peripheral to their own. JEM also selects papers from conferences such as the Electronic Materials Conference, the U.S. Workshop on the Physics and Chemistry of II-VI Materials, and the International Conference on Thermoelectrics. It benefits both specialists and non-specialists in the electronic materials field. A journal of The Minerals, Metals & Materials Society.