Photo-induced ultralong phosphorescence of carbon dots for thermally sensitive dynamic patterning

Yanfeng Liu; Xin Huang; Zuoji Niu; Dongni Wang; Huilin Gou; Qiaobo Liao; Kai Xi; Zhongfu An; Xudong Jia

doi:10.1039/d1sc01394g

Photo-induced ultralong phosphorescence of carbon dots for thermally sensitive dynamic patterning

Yanfeng Liu, Xin Huang, Zuoji Niu, Dongni Wang, Huilin Gou, Qiaobo Liao, Kai Xi, Zhongfu An, Xudong Jia

SCHOOL OF FLEXIBLE ELECTRONICS(FUTURE TECHNOLOGIES)|INSTITUTE OF ADVANCED MATERIALS(IAM)

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

54 Scopus citations

Abstract

Stimuli-responsive films with a dynamic long afterglow feature have received considerable attention in the field of optical materials. Herein, we report the unique dynamic ultralong room temperature phosphorescence (URTP) in flexible solid films made of luminescent carbon dots (CDs) and polyvinylpyrrolidone (PVP). Impressively, fully reversible photo-activation and thermal deactivation of the dynamic long afterglow was achieved in this material, with a lifetime on-off ratio exceeding 3900. Subsequently, ultra-fine URTP patterns (resolution > 1280 dpi) with thermally sensitive retention time were readily photo-printed onto the films and utilized as time-temperature indicating logistics labels with multi-editing capacity. These findings not only enrich the library of dynamic URTP materials, but also extend the scope of the potential applications of luminescent CDs.

Original language	English
Pages (from-to)	8199-8206
Number of pages	8
Journal	Chemical Science
Volume	12
Issue number	23
DOIs	https://doi.org/10.1039/d1sc01394g
State	Published - 21 Jun 2021

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title = "Photo-induced ultralong phosphorescence of carbon dots for thermally sensitive dynamic patterning",

abstract = "Stimuli-responsive films with a dynamic long afterglow feature have received considerable attention in the field of optical materials. Herein, we report the unique dynamic ultralong room temperature phosphorescence (URTP) in flexible solid films made of luminescent carbon dots (CDs) and polyvinylpyrrolidone (PVP). Impressively, fully reversible photo-activation and thermal deactivation of the dynamic long afterglow was achieved in this material, with a lifetime on-off ratio exceeding 3900. Subsequently, ultra-fine URTP patterns (resolution > 1280 dpi) with thermally sensitive retention time were readily photo-printed onto the films and utilized as time-temperature indicating logistics labels with multi-editing capacity. These findings not only enrich the library of dynamic URTP materials, but also extend the scope of the potential applications of luminescent CDs.",

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T1 - Photo-induced ultralong phosphorescence of carbon dots for thermally sensitive dynamic patterning

AU - Liu, Yanfeng

AU - Huang, Xin

AU - Niu, Zuoji

AU - Wang, Dongni

AU - Gou, Huilin

AU - Liao, Qiaobo

AU - Xi, Kai

AU - An, Zhongfu

AU - Jia, Xudong

PY - 2021/6/21

Y1 - 2021/6/21

N2 - Stimuli-responsive films with a dynamic long afterglow feature have received considerable attention in the field of optical materials. Herein, we report the unique dynamic ultralong room temperature phosphorescence (URTP) in flexible solid films made of luminescent carbon dots (CDs) and polyvinylpyrrolidone (PVP). Impressively, fully reversible photo-activation and thermal deactivation of the dynamic long afterglow was achieved in this material, with a lifetime on-off ratio exceeding 3900. Subsequently, ultra-fine URTP patterns (resolution > 1280 dpi) with thermally sensitive retention time were readily photo-printed onto the films and utilized as time-temperature indicating logistics labels with multi-editing capacity. These findings not only enrich the library of dynamic URTP materials, but also extend the scope of the potential applications of luminescent CDs.

AB - Stimuli-responsive films with a dynamic long afterglow feature have received considerable attention in the field of optical materials. Herein, we report the unique dynamic ultralong room temperature phosphorescence (URTP) in flexible solid films made of luminescent carbon dots (CDs) and polyvinylpyrrolidone (PVP). Impressively, fully reversible photo-activation and thermal deactivation of the dynamic long afterglow was achieved in this material, with a lifetime on-off ratio exceeding 3900. Subsequently, ultra-fine URTP patterns (resolution > 1280 dpi) with thermally sensitive retention time were readily photo-printed onto the films and utilized as time-temperature indicating logistics labels with multi-editing capacity. These findings not only enrich the library of dynamic URTP materials, but also extend the scope of the potential applications of luminescent CDs.

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JO - Chemical Science

JF - Chemical Science

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Photo-induced ultralong phosphorescence of carbon dots for thermally sensitive dynamic patterning

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