Sensors 2010, 10(5), 5054-5062; doi:10.3390/s100505054
Article

A Flexible Proximity Sensor Fully Fabricated by Inkjet Printing

Chin-Tsan Wang 1 email, Kuo-Yi Huang 2 email, David T. W. Lin 3 email, Wei-Chia Liao 1 email, Hua-Wei Lin 1 email and Yuh-Chung Hu 1,* email
1 Department of Mechanical and Electromechanical Engineering, National ILan University, ILan 260, Taiwan 2 Department of Mechatronic Engineering, Huafan University, Taipei 223, Taiwan 3 Graduate Institute of Mechatronic System Engineering, National University of Tainan, Tainan 70005, Taiwan
* Author to whom correspondence should be addressed.
Received: 9 March 2010; in revised form: 11 May 2010 / Accepted: 14 May 2010 / Published: 19 May 2010
(This article belongs to the Section Chemical Sensors)
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Abstract: 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.
Keywords: flexible electronics; inkjet printing; proximity sensor; pyroelectric

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Cite This Article

MDPI and ACS Style

Wang, C.-T.; Huang, K.-Y.; Lin, D.T.W.; Liao, W.-C.; Lin, H.-W.; Hu, Y.-C. A Flexible Proximity Sensor Fully Fabricated by Inkjet Printing. Sensors 2010, 10, 5054-5062.

AMA Style

Wang C-T, Huang K-Y, Lin DTW, Liao W-C, Lin H-W, Hu Y-C. A Flexible Proximity Sensor Fully Fabricated by Inkjet Printing. Sensors. 2010; 10(5):5054-5062.

Chicago/Turabian Style

Wang, Chin-Tsan; Huang, Kuo-Yi; Lin, David T. W.; Liao, Wei-Chia; Lin, Hua-Wei; Hu, Yuh-Chung. 2010. "A Flexible Proximity Sensor Fully Fabricated by Inkjet Printing." Sensors 10, no. 5: 5054-5062.

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