A Flexible Proximity Sensor Fully Fabricated by Inkjet Printing

A Flexible Proximity Sensor Fully Fabricated by Inkjet Printing

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 ma...

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Bibliographic Details
Main Authors: Chin-Tsan Wang, Kuo-Yi Huang, David T. W. Lin, Wei-Chia Liao, Hua-Wei Lin, Yuh-Chung Hu
Format: Article
Language:English
Published: MDPI AG 2010-05-01
Series:Sensors
Subjects:
flexible electronics
inkjet printing
proximity sensor
pyroelectric
Online Access:http://www.mdpi.com/1424-8220/10/5/5054/
Description
Summary: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.
ISSN:1424-8220

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