High Performance of Simple Organic Phosphorescence Host-Guest Materials and their Application in Time-Resolved Bioimaging

Yunsheng Wang¹, Heqi Gao², Jie Yang¹, Manman Fang¹, Dan Ding², Ben Zhong Tang^{1

3}, Zhen Li^{1

4

5

6}

Affiliations

¹ Institute of Molecular Aggregation Science, Tianjin University, Tianjin, 300072, China.
² Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin, 300071, China.
³ Department of Chemistry, The Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, 999077, Hong Kong.
⁴ Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China.
⁵ Department of Chemistry, Wuhan University, Wuhan, 430072, China.
⁶ Joint School of National University of Singapore, Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China.

PMID: 33772942
DOI: 10.1002/adma.202007811

High Performance of Simple Organic Phosphorescence Host-Guest Materials and their Application in Time-Resolved Bioimaging

Yunsheng Wang et al. Adv Mater. 2021 May.

. 2021 May;33(18):e2007811.

doi: 10.1002/adma.202007811. Epub 2021 Mar 27.

Authors

Yunsheng Wang¹, Heqi Gao², Jie Yang¹, Manman Fang¹, Dan Ding², Ben Zhong Tang^{1

3}, Zhen Li^{1

4

5

6}

Affiliations

¹ Institute of Molecular Aggregation Science, Tianjin University, Tianjin, 300072, China.
² Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin, 300071, China.
³ Department of Chemistry, The Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, 999077, Hong Kong.
⁴ Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China.
⁵ Department of Chemistry, Wuhan University, Wuhan, 430072, China.
⁶ Joint School of National University of Singapore, Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China.

PMID: 33772942
DOI: 10.1002/adma.202007811

Abstract

The study of purely organic room-temperature phosphorescence (RTP) has drawn increasing attention because of its considerable theoretical research and practical application value. Currently, organic RTP materials with both high efficiency (Φ_P > 20%) and a long lifetime (τ_P > 10 s) in air are still scarce due to the lack of related design guidance. Here, a new strategy to increase the phosphorescence performance of organic materials by integrating the RTP host and RTP guest in one doping system to form a triplet exciplex, is reported. With these materials, the high-contrast labeling of tumors in living mice and encrypted patterns in thermal printing are both successfully realized by taking advantage of both the long afterglow time (up to 25 min in aqueous media) and high phosphorescence efficiency (43%).

Keywords: host-guest doping systems; room-temperature phosphorescence; thermal printing; time-resolved bioimaging.

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References

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High Performance of Simple Organic Phosphorescence Host-Guest Materials and their Application in Time-Resolved Bioimaging

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High Performance of Simple Organic Phosphorescence Host-Guest Materials and their Application in Time-Resolved Bioimaging

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