Transparent Programmable Luminescent Tags Enabled by Spiro[fluorene-9,9′-xanthene]-Based Hole-Transporting Molecules DOI
Daqing Zhang, Xin Luo, Lucía Labrador‐Páez

et al.

The Journal of Physical Chemistry C, Journal Year: 2024, Volume and Issue: 128(46), P. 19893 - 19900

Published: Nov. 7, 2024

Pure organic ultralong room temperature phosphorescent (URTP) materials have garnered significant attention for applications in luminescent materials, biosensing, and information encryption. These offer advantages over heavy metal such as lower cost, reduced biological toxicity, minimal environmental impact. Herein, the first time, we demonstrate a series of RTP based on spiro[fluorene-9,9′-xanthene] (SFX) hole-transporting molecules, specifically X59 X55. Our research presents that incorporating more rigid SFX units significantly extends lifetime enhances photoluminescence quantum yield (PLQY). The large steric hindrance structures suppresses nonradiative molecular motions, thereby prolonging phosphorescence emission. Compared to baseline molecule X1, experimental results show by 230 ms, while X55 achieves an extension 260 ms. Furthermore, highlight potential this molecules use transparent, programmable tags. work not only expands types but also provides innovative strategies designing long-lived, high-quantum-yield molecules. We envision will advance smart device field their practical applications, intelligent labels, tags, optical sensors.

Language: Английский

Transparent Programmable Luminescent Tags Enabled by Spiro[fluorene-9,9′-xanthene]-Based Hole-Transporting Molecules DOI
Daqing Zhang, Xin Luo, Lucía Labrador‐Páez

et al.

The Journal of Physical Chemistry C, Journal Year: 2024, Volume and Issue: 128(46), P. 19893 - 19900

Published: Nov. 7, 2024

Pure organic ultralong room temperature phosphorescent (URTP) materials have garnered significant attention for applications in luminescent materials, biosensing, and information encryption. These offer advantages over heavy metal such as lower cost, reduced biological toxicity, minimal environmental impact. Herein, the first time, we demonstrate a series of RTP based on spiro[fluorene-9,9′-xanthene] (SFX) hole-transporting molecules, specifically X59 X55. Our research presents that incorporating more rigid SFX units significantly extends lifetime enhances photoluminescence quantum yield (PLQY). The large steric hindrance structures suppresses nonradiative molecular motions, thereby prolonging phosphorescence emission. Compared to baseline molecule X1, experimental results show by 230 ms, while X55 achieves an extension 260 ms. Furthermore, highlight potential this molecules use transparent, programmable tags. work not only expands types but also provides innovative strategies designing long-lived, high-quantum-yield molecules. We envision will advance smart device field their practical applications, intelligent labels, tags, optical sensors.

Language: Английский

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