A portable gas sensor based on In2O3@CuO P–N heterojunction connected via Wi-Fi to a smartphone for real-time carbon monoxide determination

Abstract This research presents a compact portable electronic gas sensor that can be monitored through a smartphone application. The smart sensor utilizes three state-of-the-art sensors. The sensors integrate an ESP8266 microcontroller within the same device. This facilitates their integration with...

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Main Authors: Sina Khalili, Mohsen Majidi, Morteza Bahrami, Majid Roshanaei, Tayyebeh Madrakian, Abbas Afkhami
Format: Article
Language:English
Published: Nature Portfolio 2024-06-01
Series:Scientific Reports
Subjects:
Online Access:https://doi.org/10.1038/s41598-024-64534-2
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author Sina Khalili
Mohsen Majidi
Morteza Bahrami
Majid Roshanaei
Tayyebeh Madrakian
Abbas Afkhami
author_facet Sina Khalili
Mohsen Majidi
Morteza Bahrami
Majid Roshanaei
Tayyebeh Madrakian
Abbas Afkhami
author_sort Sina Khalili
collection DOAJ
description Abstract This research presents a compact portable electronic gas sensor that can be monitored through a smartphone application. The smart sensor utilizes three state-of-the-art sensors. The sensors integrate an ESP8266 microcontroller within the same device. This facilitates their integration with the electronics and enhances their performance. Herein, primarily focuses on utilizing the sensor to detect carbon monoxide. This article outlines the fabrication process of a gas sensor utilizing a P–N heterojunction, eliminating the need for a binder. The sensor consists of CuO/copper foam nanowires and hierarchical In2O3. In order to verify the system’s functionality, it underwent testing with various levels of CO concentrations (10–900 ppm), including particular tests designed to examine the device’s performance in different humidity and temperature circumstances. A mobile application for the provision of monitoring services has been developed at last. To process the information obtained from the gas sensor, an algorithm has been constructed, trained, and integrated into a smartphone for this purpose. This research demonstrated that a smartphone-coupled gas sensor is a viable system for real-time monitoring and the detection of CO gas.
format Article
id doaj-art-5dd6a53ba5e24c6ea0bdc906d2d5ff87
institution Kabale University
issn 2045-2322
language English
publishDate 2024-06-01
publisher Nature Portfolio
record_format Article
series Scientific Reports
spelling doaj-art-5dd6a53ba5e24c6ea0bdc906d2d5ff872025-01-26T12:35:04ZengNature PortfolioScientific Reports2045-23222024-06-0114111510.1038/s41598-024-64534-2A portable gas sensor based on In2O3@CuO P–N heterojunction connected via Wi-Fi to a smartphone for real-time carbon monoxide determinationSina Khalili0Mohsen Majidi1Morteza Bahrami2Majid Roshanaei3Tayyebeh Madrakian4Abbas Afkhami5Research Center for Health Management in Mass Gathering, Red Crescent Society of the Islamic Republic of IranFaculty of Chemistry and Petroleum Sciences, Bu-Ali Sina UniversityDepartment of Computer Engineering, Faculty of Engineering, Bu-Ali Sina UniversityBiomedical Engineering Department, School of Electrical Engineering, Iran University of Science and TechnologyFaculty of Chemistry and Petroleum Sciences, Bu-Ali Sina UniversityFaculty of Chemistry and Petroleum Sciences, Bu-Ali Sina UniversityAbstract This research presents a compact portable electronic gas sensor that can be monitored through a smartphone application. The smart sensor utilizes three state-of-the-art sensors. The sensors integrate an ESP8266 microcontroller within the same device. This facilitates their integration with the electronics and enhances their performance. Herein, primarily focuses on utilizing the sensor to detect carbon monoxide. This article outlines the fabrication process of a gas sensor utilizing a P–N heterojunction, eliminating the need for a binder. The sensor consists of CuO/copper foam nanowires and hierarchical In2O3. In order to verify the system’s functionality, it underwent testing with various levels of CO concentrations (10–900 ppm), including particular tests designed to examine the device’s performance in different humidity and temperature circumstances. A mobile application for the provision of monitoring services has been developed at last. To process the information obtained from the gas sensor, an algorithm has been constructed, trained, and integrated into a smartphone for this purpose. This research demonstrated that a smartphone-coupled gas sensor is a viable system for real-time monitoring and the detection of CO gas.https://doi.org/10.1038/s41598-024-64534-2Portable sensorGas sensorsSmartphonesCarbon monoxideP–N heterojunction
spellingShingle Sina Khalili
Mohsen Majidi
Morteza Bahrami
Majid Roshanaei
Tayyebeh Madrakian
Abbas Afkhami
A portable gas sensor based on In2O3@CuO P–N heterojunction connected via Wi-Fi to a smartphone for real-time carbon monoxide determination
Scientific Reports
Portable sensor
Gas sensors
Smartphones
Carbon monoxide
P–N heterojunction
title A portable gas sensor based on In2O3@CuO P–N heterojunction connected via Wi-Fi to a smartphone for real-time carbon monoxide determination
title_full A portable gas sensor based on In2O3@CuO P–N heterojunction connected via Wi-Fi to a smartphone for real-time carbon monoxide determination
title_fullStr A portable gas sensor based on In2O3@CuO P–N heterojunction connected via Wi-Fi to a smartphone for real-time carbon monoxide determination
title_full_unstemmed A portable gas sensor based on In2O3@CuO P–N heterojunction connected via Wi-Fi to a smartphone for real-time carbon monoxide determination
title_short A portable gas sensor based on In2O3@CuO P–N heterojunction connected via Wi-Fi to a smartphone for real-time carbon monoxide determination
title_sort portable gas sensor based on in2o3 cuo p n heterojunction connected via wi fi to a smartphone for real time carbon monoxide determination
topic Portable sensor
Gas sensors
Smartphones
Carbon monoxide
P–N heterojunction
url https://doi.org/10.1038/s41598-024-64534-2
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