Transparent Pd wire network-based areal hydrogen sensor with inherent Joule heater

Walia, Sunil ; Gupta, Ritu ; Rao, K. D. M. ; Kulkarni, Giridhar U. (2016) Transparent Pd wire network-based areal hydrogen sensor with inherent Joule heater ACS Applied Materials & Interfaces, 8 (35). pp. 23419-23424. ISSN 1944-8244

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Official URL: http://pubs.acs.org/doi/abs/10.1021/acsami.6b08275

Related URL: http://dx.doi.org/10.1021/acsami.6b08275

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.

Item Type:Article
Source:Copyright of this article belongs to American Chemical Society.
Keywords:Flexible; Gas Sensor; Hydrogen; Joule Heating; Transparent Heater
ID Code:102538
Deposited On:04 Mar 2017 16:18
Last Modified:04 Mar 2017 16:18

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