| 一种大电荷处理能力的高工作温度长波碲镉汞探测器邢艳蕾 宋淑芳 |
| 投稿时间：2024-12-08 修订日期：2024-12-26 点此下载全文 |
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| 中文摘要:近年来,高工作温度器件以其重量轻、体积小、热耗低的特性,在降低成本的同时可同步获得与低温探测器同等水平的性能的优势,逐渐成为了红外领域研究的热点。大电荷处理能力则具备宽动态范围(DR)、高灵敏度、强信号检测等优势,在激光雷达、天文观测等领域有广泛应用。本文主要介绍了具备大电荷处理能力并且在高温条件下工作的长波碲镉汞探测器,15μm像元间距下电荷处理能力可以达到27Me-。并对比分析了不同工作温度下器件的主要性能,在110K下,有效像元率可达到98.5%,噪声等效温差为28mK,峰值量子效率为40%,并与其在77K低温下性能进行对比,仍可达到一个较好的水平。 |
| 中文关键词:高工作温度 大电荷处理能力 碲镉汞 量子效率 |
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| A high operating temperature long wave mercury cadmium telluride detector with large charge handling capacityXing Yanlei Song Shufang |
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| Abstract:In recent years, the high operating temperature device with its light weight, small size, low heat consumption characteristics, while reducing the cost of the same level of performance as the low temperature detector advantages, gradually become the focus of infrared research. The large charge processing capability has the advantages of wide dynamic range (DR), high sensitivity, strong signal detection, etc., and is widely used in LiDAR, astronomical observation and other fields. In this paper, a long-wave mercury cadmium telluride detector with high charge processing capacity and operating at high temperature is introduced. The charge processing capacity can reach 40Me- at 15μm pixel spacing. The main performance of the device at different operating temperatures is compared and analyzed. At 110K, the effective pixel rate can reach 98.5%, the noise equivalent temperature difference is 28mK, and the peak quantum efficiency is 40%. Compared with the performance at 77K, it can still reach a good level. |
| keywords:high operating temperature, large charge handling capacity, MCT, quantum efficiency |
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