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基于石墨纳米材料的电磁诱导势阱效应的室温太赫兹探测研究(英文)
Room-temperature THz detection via EIW effect based on graphite nanosheet
【摘要】 基于石墨纳米材料,成功制备金属-石墨-金属结构电磁诱导势阱效应室温太赫兹探测器,实现了高性能的室温太赫兹探测。器件在 0.035 THz 的响应率达到 20 kV/W,在 0.1673 THz 的响应率达到 11 kV/W,器件在0.035 THz 的噪声等效功率达到■,在 0.1673 THz 的噪声等效功率达到■。我们的研究结果为石墨烯太赫兹探测器提供新的思路。
【Abstract】 We demonstrate a room-temperature sub-terahertz photoconductive detector based on graphite nanosheet(GN)using electromagnetic induced well(EIW)effect produced in the metal-GN-metal structure. The detector achieves high performance of room-temperature THz detection. It shows a responsivity of over 20 kV/W at 0. 035 THz and 11 kV/W at 0. 1673 THz,as well as NEP of about 1. 25 pW/Hz1/2at 0. 035 THz and 2. 27 pW/Hz1/2at 0. 1673 THz,respectively. The results open up a new idea for graphene-based THz detection.
【关键词】 红外物理;
太赫兹探测;
光电导;
电磁诱导势阱效应;
石墨纳米片;
【Key words】 infrared physics; terahertz detection; photoconductivity; EIW effect; graphite nanosheet;
【Key words】 infrared physics; terahertz detection; photoconductivity; EIW effect; graphite nanosheet;
【基金】 Supported by the National Natural Science Foundation of China(61625505,12134016);Chinese Academy of Sciences(ZDBS-LYJSC025);Shanghai Municipal Science and Technology Major Project(2019SHZDZX01)
- 【文献出处】 红外与毫米波学报 ,Journal of Infrared and Millimeter Waves , 编辑部邮箱 ,2022年03期
- 【分类号】O441.4
- 【下载频次】35