Cited by 13Luminescence and Fluorescent MaterialsMolecular Sensors and Ion DetectionLuminescence Properties of Advanced Materials

Proton-activated amorphous room-temperature phosphorescence for humidity sensing and high-level data encryption

Deng, Yuchen, Li, Peng, Sun, Shujuan, Jiang, Haiyan, Ji, Xu, Li, Huanrong·2020·Chemistry - An Asian Journal

Abstract

Supramolecular co-assembling terpyridine-derivatives with nanoclay (LP) are exploited to acquire efficient amorphous room-temperature phosphorescence (RTP). Experimental and theoretical investigations reveal that this co-assembly not only brings about a configuration transformation from the trans-trans (a) to the cis-trans (a'') form via the protonating process, significantly narrowing the singlet-triplet energy gap, thereby effectively facilitating the single-triplet ISC processes, but also well protects the triplet state and suppresses the nonradiative transitions via restricting molecular rotation and vibration by the hydrogen-bond interactions between them. Additionally, the flexible and transparent films, through co-assembling 1@LP (or 2@LP) with polyvinyl alcohol (PVA), also display excellent phosphorescence performance. Owing to their distinctive RTP performances, the RH sensing and high-level data encryption are achieved.

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Crossref · 10.1002/asia.201901747

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84 of 84 references verified0 citation errors · 0 not checkable

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  • PSP@PVA-H can be converted to PSP@PVA-N to regenerate RTP in the presence of a proper base (amine gas or ammonia), although RTP is reduced compared with its original state before vacuum drying to remove water.

    “Furthermore, PSP@PVA-H can be converted to PSP@PVA-N to regenerate RTP in the presence of a proper base (amine gas or ammonia), although RTP will be reduced compared with its original state before vacuum drying to remove water [42,43].”

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Authors
Deng, Y., Li, P., Sun, S., Jiang, H., Ji, X., & Li, H.
Affiliations
Hebei University of Technology (CN)
Corresponding author
  • Li, Peng
  • Li, Huanrong
Venue
Chemistry - An Asian Journal
Publisher
Wiley
Published
2020-03-05
Volume
15
Issue
7
Pages
1088-1093
ISSN
  • 1861-471X (ISSN-L)
  • 1861-4728
OpenAlex
W3004773405
Cited by
13
References
84
Citations by year
2026: 1 · 2025: 1 · 2024: 1 · 2023: 1 · 2022: 2 · 2021: 7
FWCI
0.97
Type
journal article
Language
en
Open access
closed
Locations
  • Chemistry - An Asian Journal (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Natural Science Foundation of China (21171046, 21502039, 21271060, 21802031)
  • Natural Science Foundation of Hebei Province (B2016202147, B2016202149, B2017202048)
  • Natural Science Foundation of Tianjin Municipality (18JCYBJC17200)
Topics
  • Physical Sciences › Materials Science › Materials Chemistry › Luminescence and Fluorescent Materials
  • Physical Sciences › Chemistry › Spectroscopy › Molecular Sensors and Ion Detection
  • Physical Sciences › Materials Science › Materials Chemistry › Luminescence Properties of Advanced Materials
Keywords
room-temperature phosphorescence, proton activation, terpyridine derivatives, nanoclay, supramolecular co-assembly, cis-trans isomerization, singlet-triplet energy gap, intersystem crossing, hydrogen bonding, polyvinyl alcohol films, humidity sensing, data encryption

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