Abstract
We demonstrate the high performance humidity sensor based on Sb0.1Sn0.9Se2 ternary alloy for intended applications in intelligent electronics. The sensor based on bulk crystal of Sb0.1Sn0.9Se2 ternary alloy was fabricated and was investigated under humid environment of relative humidity of 20 to 95%. The sensor showed responsivity of 15.60% for switching between relative humidity of 20% and 95%. Moreover, Sb0.1Sn0.9Se2 sensor is explored for electronic listening of human breathing, whistling and speaking. Besides, the sensor is exploited for touchless sensing. The sensing of humidity of human skin and wet cotton are also accomplished. Over all, the results advocate development of smart sensors for biomedical as well as for intelligent touchless sensing applications.
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