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Cited by 32Gas Sensing Nanomaterials and SensorsPerovskite Materials and ApplicationsLuminescence and Fluorescent Materials

Ultrasensitive turn-on luminescence humidity sensor based on a perovskite/zeolite composite

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Gao, Yu-Jie, Romolini, Giacomo, Huang, Haowei, Jin, Handong, Saha, Rafikul Ali, Ghosh, Biplab, De Ras, Michiel, Wang, Chunhua +4 more·2022·Journal of Materials Chemistry C
DOI 10.1039/d2tc02498e
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Abstract

A new perovskite-based turn-on sensor, Cs 4 PbBr 6 /FAU-Y, is designed by depositing the precursor of CsPbBr 3 on hygroscopic zeolite FAU-Y. This sensor shows an excellent fluorescence response when exposed to both low and high humidity conditions.

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  • When humidity changes, the adsorption of moisture alters the internal charge distribution and ion mobility within the perovskite material, affecting electrical parameters such as resistance and capacitance.

    “When the humidity in the environment changes, the adsorption of moisture alters the internal charge distribution and ion mobility within the perovskite material, which in turn affects its electrical parameters such as resistance and capacitance [91].”

    From Design Strategies and Emerging Applications of Perovskite-Based Sensors (2025) · cites this paper as [91]

    The sensor-mechanism passage (page not given) describes moisture-triggered conversion of Cs4PbBr6 to CsPbBr3 and notes that Cs4PbBr6 has a high ion-diffusion property. It does not say that moisture changes internal charge distribution or ion mobility, or that the perovskite’s resistance or capacitance changes; the measured response is photoluminescence. The Abstract mentions electrical-property changes only for traditional sensors made from other materials. (LLM, conf=0.82)

    Experimental — accuracy not yet measured

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Authors
Gao, Y.-J., Romolini, G., Huang, H., Jin, H., Saha, R. A., Ghosh, B., De Ras, M., Wang, C., Steele, J. A., Debroye, E., Hofkens, J., & Roeffaers, M. B. J.
Affiliations
  • Department of Microbial and Molecular Systems, Centre for Membrane Separations, Adsorption, Catalysis and Spectroscopy for Sustainable Solutions (cMACS), KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
  • KU Leuven (BE)
  • Department of Chemistry, Faculty of Sciences, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
  • The University of Queensland (AU)
Corresponding author
Roeffaers, Maarten B. J.
ORCID
Venue
Journal of Materials Chemistry C
Publisher
Royal Society of Chemistry (RSC)
Published
2022
Volume
10
Issue
34
Pages
12191-12196
ISSN
  • 2050-7526 (ISSN-L)
  • 2050-7534
DOI
10.1039/d2tc02498e
OpenAlex
W4292066976
Cited by
32
References
42
Citations by year
2026: 1 · 2025: 10 · 2024: 11 · 2023: 8 · 2022: 2
FWCI
2.12
Type
journal article
Language
en
Open access
Licence
Locations
  • Journal of Materials Chemistry C (publishedVersion)
  • Lirias (submittedVersion, other-oa)
Funders
  • China Scholarship Council (201806650002)
  • Fonds Wetenschappelijk Onderzoek (G098319N, 11C6922N, 12Y7221N and V400622N)
  • Onderzoeksraad, KU Leuven (C14/19/079, iBOF-21-085 PERSIST, and STG/21/010)
  • Vlaamse regering (Meth/15/04)
Topics
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Gas Sensing Nanomaterials and Sensors
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Perovskite Materials and Applications
  • Physical Sciences › Materials Science › Materials Chemistry › Luminescence and Fluorescent Materials
Keywords
humidity sensing, turn-on luminescence, perovskite, Cs4PbBr6, CsPbBr3

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