High-Performance Optoelectronic Gas Sensing Based on All-Inorganic Mixed-Halide Perovskite Nanocrystals with Halide Engineering

Jiyun Kim; Alishba T. John; Hanchen Li; Chien-Yu Huang; Yuan Chi; Pradeep Raja Anandan; Krishnan Murugappan; Jianbo Tang; Chun-Ho Lin; Long Hu; Kourosh Kalantar-Zadeh; Antonio Tricoli; Dewei Chu; Tom Wu

doi:10.1002/smtd.202300417

High-Performance Optoelectronic Gas Sensing Based on All-Inorganic Mixed-Halide Perovskite Nanocrystals with Halide Engineering

Jiyun Kim, Alishba T. John, Hanchen Li, Chien-Yu Huang, Yuan Chi, Pradeep Raja Anandan, Krishnan Murugappan, Jianbo Tang, Chun-Ho Lin^*, Long Hu^*, Kourosh Kalantar-Zadeh, Antonio Tricoli, Dewei Chu, Tom Wu^*

^*Corresponding author for this work

School of Engineering

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

29 Citations (Scopus)

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Abstract

Gas sensors are of great interest to portable and miniaturized sensing technologies with applications ranging from air quality monitoring to explosive detection and medical diagnostics, but the existing chemiresistive NO₂ sensors still suffer from issues such as poor sensitivity, high operating temperature, and slow recovery. Herein, a high-performance NO₂ sensors based on all-inorganic perovskite nanocrystals (PNCs) is reported, achieving room temperature operation with ultra-fast response and recovery time. After tailoring the halide composition, superior sensitivity of ≈67 at 8 ppm NO₂ is obtained in CsPbI₂Br PNC sensors with a detection level down to 2 ppb, which outperforms other nanomaterial-based NO₂ sensors. Furthermore, the remarkable optoelectronic properties of such PNCs enable dual-mode operation, i.e., chemiresistive and chemioptical sensing, presenting a new and versatile platform for advancing high-performance, point-of-care NO₂ detection technologies.

Original language	English
Article number	2300417
Pages (from-to)	1-11
Number of pages	11
Journal	Small Methods
Volume	8
Issue number	2
DOIs	https://doi.org/10.1002/smtd.202300417
Publication status	Published - 20 Feb 2024

Bibliographical note

Copyright the Author(s) 2023. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

halide engineering
nanocrystals
NO2 sensor
optoelectronic sensing
perovskites

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10.1002/smtd.202300417Licence: CC BY

Publisher version (open access)Final published version, 2.4 MBLicence: CC BY

Cite this

Kim, J., John, A. T., Li, H., Huang, C.-Y., Chi, Y., Anandan, P. R., Murugappan, K., Tang, J., Lin, C.-H., Hu, L., Kalantar-Zadeh, K., Tricoli, A., Chu, D., & Wu, T. (2024). High-Performance Optoelectronic Gas Sensing Based on All-Inorganic Mixed-Halide Perovskite Nanocrystals with Halide Engineering. Small Methods, 8(2), 1-11. Article 2300417. https://doi.org/10.1002/smtd.202300417

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abstract = "Gas sensors are of great interest to portable and miniaturized sensing technologies with applications ranging from air quality monitoring to explosive detection and medical diagnostics, but the existing chemiresistive NO2 sensors still suffer from issues such as poor sensitivity, high operating temperature, and slow recovery. Herein, a high-performance NO2 sensors based on all-inorganic perovskite nanocrystals (PNCs) is reported, achieving room temperature operation with ultra-fast response and recovery time. After tailoring the halide composition, superior sensitivity of ≈67 at 8 ppm NO2 is obtained in CsPbI2Br PNC sensors with a detection level down to 2 ppb, which outperforms other nanomaterial-based NO2 sensors. Furthermore, the remarkable optoelectronic properties of such PNCs enable dual-mode operation, i.e., chemiresistive and chemioptical sensing, presenting a new and versatile platform for advancing high-performance, point-of-care NO2 detection technologies.",

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author = "Jiyun Kim and John, \{Alishba T.\} and Hanchen Li and Chien-Yu Huang and Yuan Chi and Anandan, \{Pradeep Raja\} and Krishnan Murugappan and Jianbo Tang and Chun-Ho Lin and Long Hu and Kourosh Kalantar-Zadeh and Antonio Tricoli and Dewei Chu and Tom Wu",

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AU - Kim, Jiyun

AU - John, Alishba T.

AU - Li, Hanchen

AU - Huang, Chien-Yu

AU - Chi, Yuan

AU - Anandan, Pradeep Raja

AU - Murugappan, Krishnan

AU - Tang, Jianbo

AU - Lin, Chun-Ho

AU - Hu, Long

AU - Kalantar-Zadeh, Kourosh

AU - Tricoli, Antonio

AU - Chu, Dewei

AU - Wu, Tom

N1 - Copyright the Author(s) 2023. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

PY - 2024/2/20

Y1 - 2024/2/20

N2 - Gas sensors are of great interest to portable and miniaturized sensing technologies with applications ranging from air quality monitoring to explosive detection and medical diagnostics, but the existing chemiresistive NO2 sensors still suffer from issues such as poor sensitivity, high operating temperature, and slow recovery. Herein, a high-performance NO2 sensors based on all-inorganic perovskite nanocrystals (PNCs) is reported, achieving room temperature operation with ultra-fast response and recovery time. After tailoring the halide composition, superior sensitivity of ≈67 at 8 ppm NO2 is obtained in CsPbI2Br PNC sensors with a detection level down to 2 ppb, which outperforms other nanomaterial-based NO2 sensors. Furthermore, the remarkable optoelectronic properties of such PNCs enable dual-mode operation, i.e., chemiresistive and chemioptical sensing, presenting a new and versatile platform for advancing high-performance, point-of-care NO2 detection technologies.

AB - Gas sensors are of great interest to portable and miniaturized sensing technologies with applications ranging from air quality monitoring to explosive detection and medical diagnostics, but the existing chemiresistive NO2 sensors still suffer from issues such as poor sensitivity, high operating temperature, and slow recovery. Herein, a high-performance NO2 sensors based on all-inorganic perovskite nanocrystals (PNCs) is reported, achieving room temperature operation with ultra-fast response and recovery time. After tailoring the halide composition, superior sensitivity of ≈67 at 8 ppm NO2 is obtained in CsPbI2Br PNC sensors with a detection level down to 2 ppb, which outperforms other nanomaterial-based NO2 sensors. Furthermore, the remarkable optoelectronic properties of such PNCs enable dual-mode operation, i.e., chemiresistive and chemioptical sensing, presenting a new and versatile platform for advancing high-performance, point-of-care NO2 detection technologies.

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High-Performance Optoelectronic Gas Sensing Based on All-Inorganic Mixed-Halide Perovskite Nanocrystals with Halide Engineering

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