基于还原氧化石墨烯-二氧化钛-单壁碳纳米管电极的智能农业无源编码射频识别传感器标签设计

Design of passive coding RFID sensor tags for smart agriculture based on RGO-TiO-SWCNT electrode.

作者信息

Zhang Peng, Hong Junxian, Miao Fengjuan, Tao Bairui

机构信息

College of Communications and Electronics Engineering, Qiqihar University, Qiqihar, Heilongjiang, 161006, China.

Heilongjiang Institute of Technology, Jixi, Heilongjiang, 158199, China.

出版信息

Mikrochim Acta. 2025 Sep 3;192(10):630. doi: 10.1007/s00604-025-07440-2.

DOI:10.1007/s00604-025-07440-2

PMID:40900355

Abstract

A passive coding monopod antenna sensor (RFID) tag based on a composite material of titanium dioxide (TiO)/single-walled carbon nanotubes (SWCNT)/reduced graphene oxide (RGO) is studied. This sensor can be used to precisely measure light intensity and carbon dioxide concentration. Under the illumination of light with an intensity ranging from 4 to 18.1 klx, the input echo suffered a loss of - 21.88 dB. The response time of the tag to the light intensity was 9.8 s, and the recovery time was 19.2 s. The label generated a frequency point change of 124 MHZ at a carbon dioxide concentration ranging from 700 to 1900 ppm. The response time to the carbon dioxide concentration was 5.2 s, and the recovery time was 18.4 s. After testing and evaluation, this label has excellent stability, repeatability, and responsiveness under normal conditions.

摘要

研究了一种基于二氧化钛（TiO）/单壁碳纳米管（SWCNT）/还原氧化石墨烯（RGO）复合材料的无源编码单足天线传感器（RFID）标签。该传感器可用于精确测量光强和二氧化碳浓度。在强度范围为4至18.1 klx的光照下，输入回波损失了-21.88 dB。标签对光强的响应时间为9.8 s，恢复时间为19.2 s。在二氧化碳浓度范围为700至1900 ppm时，标签产生了124 MHz的频率点变化。对二氧化碳浓度的响应时间为5.2 s，恢复时间为18.4 s。经过测试和评估，该标签在正常条件下具有出色的稳定性、重复性和响应性。