Strain-Sensitive Fluorescence from Two-Dimensional Organic Crystal

Strain-Sensitive Fluorescence from Two-Dimensional Organic Crystal

Strain-sensitive fluorescence materials have great potential in sensing applications owing to their low cost, intuitive signal, and user friendliness. Organic crystals are one of the most developed fluorescence materials. However, modulation of the fluorescence by strain is still a challenge. Here,...

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Veröffentlicht in:The journal of physical chemistry letters 2020-03, Vol.11 (5), p.1909-1914
Hauptverfasser: Zhang, Cong, Wang, Xuejun, Ai, Zhaolin, Cao, Min, Yan, Yongkun, Zhao, Yan, Liu, Yunqi, Wei, Dacheng
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container_end_page 1914
container_issue 5
container_start_page 1909
container_title The journal of physical chemistry letters
container_volume 11
creator Zhang, Cong
Wang, Xuejun
Ai, Zhaolin
Cao, Min
Yan, Yongkun
Zhao, Yan
Liu, Yunqi
Wei, Dacheng
description Strain-sensitive fluorescence materials have great potential in sensing applications owing to their low cost, intuitive signal, and user friendliness. Organic crystals are one of the most developed fluorescence materials. However, modulation of the fluorescence by strain is still a challenge. Here, for the first time, we investigate the strain-sensitive fluorescence of the two-dimensional (2D) organic crystal. Without interlayer interactions, the molecular arrangement in a 2D crystal can be easily tuned, which results in photoluminescence transformation between monomer emission and excimer emission. The 2D organic crystal has higher sensitivity under strain, compared with bulk organic crystals, showing great potential in practical applications such as tactile monitors, chameleon bionic skin, and visible leakage alarms.
doi_str_mv 10.1021/acs.jpclett.0c00002
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title Strain-Sensitive Fluorescence from Two-Dimensional Organic Crystal
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