SbSI Single Nanowires as Humidity Sensors

Abstract

For the rst time inuence of humidity on photoconductivity transient characteristics are studied for antimony sulfoiodide (SbSI) single nanowires. While negative photoconductivity is observed for SbSI gel, made up of large quantity of nanowires, only the positive eect occurs for SbSI single nanowires. Photoconductivity current response on switching on and o illumination in moist N2 represents so-called hook anomaly.

SbSI Nanosensors: from Gel to Single Nanowire Devices

“…1 c). The detailed description of a setup for ultrasonic processing, applied procedure, and parameters of the process were presented in [ 7 , 9 ]. The Si/SiO 2 substrate with array of a few SbSI nanowires was stuck to standardized metal semiconductor package TO-5 (Fig.…”

Recent Advances in Ferroelectric Nanosensors: Toward Sensitive Detection of Gas, Mechanothermal Signals, and Radiation

“…It has involved dispersion of SbSI xerogel in toluene, deposition of dispersed solution on special substrate equipped with microelectrodes, electric field-assisted alignment of nanowires, and their bonding to microelectrodes using ultrasonic nanowelding. Such prepared devices have been successfully applied for humidity sensing [35,57], as well as for detection of different gas molecules (H 2 [58], O 2 [58], and N 2 O [56], CO 2 [35]). Comparing properties of humidity sensors made of an array of a few aligned SbSI nanowires and SbSI xerogel, it was concluded in [35] that latter one exhibits longer time response and simultaneously higher sensitivity to humidity changes.…”