Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/162058
Title: Long-lived room temperature phosphorescence crystals with green light excitation
Authors: Zheng, Yan
Wang, Zhonghao
Liu, Jiawei
Zhang, Yongfeng
Gao, Liang
Wang, Chang
Zheng, Xian
Zhou, Qian
Yang, Yan
Li, Youbing
Tang, Hailong
Qu, Lunjun
Zhao, Yanli
Yang, Chaolong
Keywords: Engineering::Materials
Issue Date: 2022
Source: Zheng, Y., Wang, Z., Liu, J., Zhang, Y., Gao, L., Wang, C., Zheng, X., Zhou, Q., Yang, Y., Li, Y., Tang, H., Qu, L., Zhao, Y. & Yang, C. (2022). Long-lived room temperature phosphorescence crystals with green light excitation. ACS Applied Materials and Interfaces, 14(13), 15706-15715. https://dx.doi.org/10.1021/acsami.2c04141
Journal: ACS Applied Materials and Interfaces
Abstract: Long-lived room temperature phosphorescence (RTP) materials are promising for applications in various fields including security information, medical diagnostics, and molecular imaging because of their unique optical properties. Previous RTP materials are mainly excited by ultraviolet light, while synthesizing long-lived RTP materials with visible-light-excitation remains a challenge. In particular, long-lived RTP materials that can be excited by green light are rare. Herein, a feasible and concise chemical strategy for constructing hydrogen-bonded frameworks in an aqueous environment is developed to fabricate large-size, green-light-excited, and excitation-dependent long-lived RTP carbon dot crystals (m,p/CDs-ME). The RTP performance of the crystals exhibits strong excitation wavelength dependence, leading to a full range of visible-light tuning from blue to red. Importantly, the maximum excitation wavelength of the RTP crystals is around 500 nm, thus successfully realizing green light excitation. m,p/CDs-ME presents long-lived phosphorescence (130 ms) under 500 nm excitation in aqueous solution, making it highly suitable for dopamine detection. This work not only provides a general guideline for the development of large size long-lived RTP crystals but also extends the operation scope of long-lived RTP materials in the detection of biomarkers by visible light excitation.
URI: https://hdl.handle.net/10356/162058
ISSN: 1944-8244
DOI: 10.1021/acsami.2c04141
Rights: © 2022 American Chemical Society. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SPMS Journal Articles

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