Table of Contents
Electronics, Volume 6, Issue 3 (September 2017)
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Cover Story (view full-size image) A new type of chemical sensor to detect explosive related compounds has been designed and [...] Read more. A new type of chemical sensor to detect explosive related compounds has been designed and fabricated which uses an organic photovoltaic cell as the sensing element. This sensor is operated by measuring the open-circuit voltage while illuminating the device from the backside of the glass/ITO substrate with a UV light source. When chemical compounds are present they modify the excited-state characteristics of the polymer which ultimately produces a change in the open-circuit voltage. Upon exposure to the compounds such as nitro aromatics, the sensors exhibit a significant increase in the open-circuit voltage. View this paper