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Transparent Pd Wire Network-Based Areal Hydrogen Sensor with Inherent Joule Heater
S. Walia, , K.D.M. Rao, G.U. Kulkarni
Published in American Chemical Society
2016
Volume: 8
   
Issue: 35
Pages: 23419 - 23424
Abstract
A high degree of transparency in devices is considered highly desirable for futuristic technology. This demands that both the active material and the electrodes are made of transparent materials. In this work, a transparent Pd wire network (∼1 cm2), fabricated using crackle lithography technique with sheet resistance and transmittance of ∼200 Ohm per square and ∼80%, respectively, serves multiple roles; besides being an electrode, it acts as an active material for H2 sensing as well as an in-built electrothermal heater. The sensor works over a wide range of hydrogen (H2) concentration down to 0.02% with a response time of ∼41 s, which could be improved to ∼13 s by in situ Joule heating to ∼75 °C. Importantly, the device has the potential of scale-up to a window size transparent panel and to be flexible when desired. © 2016 American Chemical Society.
About the journal
JournalData powered by TypesetACS Applied Materials and Interfaces
PublisherData powered by TypesetAmerican Chemical Society
ISSN19448244
Open AccessNo