中国物理B ›› 2012, Vol. 21 ›› Issue (1): 16102-016102.doi: 10.1088/1674-1056/21/1/016102

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Carbon nanotube–cuprous oxide composite based pressure sensors

Muhammad Tariq Saeed Chani1, Fazal Ahmad Khalid1, Adam Khan1, Rahim Khan1, Kh. S. Karimov2   

  1. (1)GIK Institute of Engineering Sciences and Technology, Topi 23640, District Swabi, Pakistan; (2)GIK Institute of Engineering Sciences and Technology, Topi 23640, District Swabi, Pakistan; Physical Technical Institute of Academy of Sciences, Rudaki Ave. 33, Dushanbe 734025, Tajikistan
  • 收稿日期:2011-07-07 修回日期:2011-08-16 出版日期:2012-01-15 发布日期:2012-01-20

Carbon nanotube–cuprous oxide composite based pressure sensors

Kh. S. Karimova)b), Muhammad Tariq Saeed Chania)†, Fazal Ahmad Khalida), Adam Khana), and Rahim Khana)   

  1. a GIK Institute of Engineering Sciences and Technology, Topi 23640, District Swabi, Pakistan; b Physical Technical Institute of Academy of Sciences, Rudaki Ave. 33, Dushanbe 734025, Tajikistan
  • Received:2011-07-07 Revised:2011-08-16 Online:2012-01-15 Published:2012-01-20

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摘要： In this paper, we present the design, the fabrication, and the experimental results of carbon nanotube (CNT) and Cu2O composite based pressure sensors. The pressed tablets of the CNT-Cu2O composite are fabricated at a pressure of 353 MPa. The diameters of the multiwalled nanotubes (MWNTs) are between 10 nm and 30 nm. The sizes of the Cu2O micro particles are in the range of 3-4 μm. The average diameter and the average thickness of the pressed tablets are 10 mm and 4.0 mm, respectively. In order to make low resistance electric contacts, the two sides of the pressed tablet are covered by silver pastes. The direct current resistance of the pressure sensor decreases by 3.3 ×as the pressure increases up to 37 kN/m2. The simulation result of the resistance-pressure relationship is in good agreement with the experimental result within a variation of ± 2%.

关键词: carbon nanotubes, Cu2O micro-powder, pressure sensor, simulation

Abstract: In this paper, we present the design, the fabrication, and the experimental results of carbon nanotube (CNT) and Cu2O composite based pressure sensors. The pressed tablets of the CNT-Cu2O composite are fabricated at a pressure of 353 MPa. The diameters of the multiwalled nanotubes (MWNTs) are between 10 nm and 30 nm. The sizes of the Cu2O micro particles are in the range of 3-4 μm. The average diameter and the average thickness of the pressed tablets are 10 mm and 4.0 mm, respectively. In order to make low resistance electric contacts, the two sides of the pressed tablet are covered by silver pastes. The direct current resistance of the pressure sensor decreases by 3.3 ×as the pressure increases up to 37 kN/m2. The simulation result of the resistance-pressure relationship is in good agreement with the experimental result within a variation of ± 2%.

Key words: carbon nanotubes, Cu2O micro-powder, pressure sensor, simulation

中图分类号:  (Structure of carbon nanotubes, boron nanotubes, and other related systems)

  • 61.48.De
72.20.Fr (Low-field transport and mobility; piezoresistance) 07.07.Df (Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing)