Proton-activated amorphous room-temperature phosphorescence for humidity sensing and high-level data encryption
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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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].”
From Red-light excited efficient metal-free near-infrared room-temperature phosphorescent films (2022) · cites this paper as [43]
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Red-light excited efficient metal-free near-infrared room-temperature phosphorescent films
Sun, S., Ma, L., Wang, J., Ma, X., & Tian, H. (2022) · National Science Review · doi:10.1093/nsr/nwab085 · Cited by 108 · see citing works
“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].”
BackgroundSelf-citation
- 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
- Licence
- 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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