A Flexible Proximity Sensor Fully Fabricated by Inkjet Printing

Sensors

Chin-Tsan Wang³  Kuo-Yi Huang¹  David T. W. Lin²  Wei-Chia Liao³  Hua-Wei Lin³ 

[1] Department of Mechatronic Engineering, Huafan University, Taipei 223, Taiwan; E-Mail:;Graduate Institute of Mechatronic System Engineering, National University of Tainan, Tainan 70005, Taiwan; E-Mail:;Department of Mechanical and Electromechanical Engineering, National ILan University, ILan 260, Taiwan; E-Mails:

关键词: flexible electronics;    inkjet printing;    proximity sensor;    pyroelectric;   

DOI  :  10.3390/s100505054

来源: mdpi

【 摘 要 】

A flexible proximity sensor fully fabricated by inkjet printing is proposed in this paper. The flexible proximity sensor is composed of a ZnO layer sandwiched in between a flexible aluminum sheet and a web-shaped top electrode layer. The flexible aluminum sheet serves as the bottom electrode. The material of the top electrode layer is nano silver. Both the ZnO and top electrode layers are deposited by inkjet printing. The fully inkjet printing process possesses the advantages of direct patterning and low-cost. It does not require photolithography and etching processes since the pattern is directly printed on the flexible aluminum sheet. The prototype demonstrates that the presented flexible sensor is sensitive to the human body. It may be applied to proximity sensing or thermal eradiation sensing.

【 授权许可】

CC BY   
© 2010 by the authors; licensee MDPI, Basel, Switzerland.