SbSI Nanosensors: from Gel to Single Nanowire Devices

Krystian Mistewicz; Marian Nowak; Regina Paszkiewicz; Anthony Guiseppi-Elie

doi:10.1186/s11671-017-1854-x

SbSI Nanosensors: from Gel to Single Nanowire Devices

Krystian Mistewicz, Marian Nowak, Regina Paszkiewicz, Anthony Guiseppi-Elie

Academic Institute

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

The gas-sensing properties of antimony sulfoiodide (SbSI) nanosensors have been tested for humidity and carbon dioxide in nitrogen. The presented low-power SbSI nanosensors have operated at relatively low temperature and have not required heating system for recovery. Functionality of sonochemically prepared SbSI nanosensors made of xerogel as well as single nanowires has been compared. In the latter case, small amount of SbSI nanowires has been aligned in electric field and bonded ultrasonically to Au microelectrodes. The current and photocurrent responses of SbSI nanosensors have been investigated as function of relative humidity. Mechanism of light-induced desorption of H₂O from SbSI nanowires’ surface has been discussed. SbSI nanosensors have been tested for concentrations from 51 to 10⁶ ppm of CO₂ in N₂, exhibiting a low detection limit of 40(31) ppm. The current response sensitivity has shown a tendency to decrease with increasing CO₂ concentration. The experimental results have been explained taking into account proton-transfer process and Grotthuss’ chain reaction, as well as electronic theory of adsorption and catalysis on semiconductors.

Original language	English (US)
Article number	97
Journal	Nanoscale Research Letters
Volume	12
Issue number	1
DOIs	https://doi.org/10.1186/s11671-017-1854-x
State	Published - Dec 1 2017

Keywords

Antimony sulfoiodide (SbSI)
Carbon dioxide
Gas sensors
Humidity
Nanowires

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics

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10.1186/s11671-017-1854-x

Cite this

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title = "SbSI Nanosensors: from Gel to Single Nanowire Devices",

abstract = "The gas-sensing properties of antimony sulfoiodide (SbSI) nanosensors have been tested for humidity and carbon dioxide in nitrogen. The presented low-power SbSI nanosensors have operated at relatively low temperature and have not required heating system for recovery. Functionality of sonochemically prepared SbSI nanosensors made of xerogel as well as single nanowires has been compared. In the latter case, small amount of SbSI nanowires has been aligned in electric field and bonded ultrasonically to Au microelectrodes. The current and photocurrent responses of SbSI nanosensors have been investigated as function of relative humidity. Mechanism of light-induced desorption of H2O from SbSI nanowires{\textquoteright} surface has been discussed. SbSI nanosensors have been tested for concentrations from 51 to 106 ppm of CO2 in N2, exhibiting a low detection limit of 40(31) ppm. The current response sensitivity has shown a tendency to decrease with increasing CO2 concentration. The experimental results have been explained taking into account proton-transfer process and Grotthuss{\textquoteright} chain reaction, as well as electronic theory of adsorption and catalysis on semiconductors.",

keywords = "Antimony sulfoiodide (SbSI), Carbon dioxide, Gas sensors, Humidity, Nanowires",

author = "Krystian Mistewicz and Marian Nowak and Regina Paszkiewicz and Anthony Guiseppi-Elie",

note = "Funding Information: The financial supports by Silesian University of Technology, Poland (nos. BK-243/RIF/2016, BKM-500/RIF/2016), and by Clemson University, USA (Material Transfer Agreement), are acknowledged. Publisher Copyright: {\textcopyright} 2017, The Author(s).",

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N1 - Funding Information: The financial supports by Silesian University of Technology, Poland (nos. BK-243/RIF/2016, BKM-500/RIF/2016), and by Clemson University, USA (Material Transfer Agreement), are acknowledged. Publisher Copyright: © 2017, The Author(s).

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N2 - The gas-sensing properties of antimony sulfoiodide (SbSI) nanosensors have been tested for humidity and carbon dioxide in nitrogen. The presented low-power SbSI nanosensors have operated at relatively low temperature and have not required heating system for recovery. Functionality of sonochemically prepared SbSI nanosensors made of xerogel as well as single nanowires has been compared. In the latter case, small amount of SbSI nanowires has been aligned in electric field and bonded ultrasonically to Au microelectrodes. The current and photocurrent responses of SbSI nanosensors have been investigated as function of relative humidity. Mechanism of light-induced desorption of H2O from SbSI nanowires’ surface has been discussed. SbSI nanosensors have been tested for concentrations from 51 to 106 ppm of CO2 in N2, exhibiting a low detection limit of 40(31) ppm. The current response sensitivity has shown a tendency to decrease with increasing CO2 concentration. The experimental results have been explained taking into account proton-transfer process and Grotthuss’ chain reaction, as well as electronic theory of adsorption and catalysis on semiconductors.

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SbSI Nanosensors: from Gel to Single Nanowire Devices

Abstract

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