A trident dithienylethene-perylenemonoimide dyad with super fluorescence switching speed and ratio

Chong Li, Hui Yan, Ling-Xi Zhao, Guo-Feng Zhang, Zhe Hu, Zhen-Li Huang and Ming-Qiang Zhu ()
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Chong Li: Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology
Hui Yan: Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology
Ling-Xi Zhao: Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology
Guo-Feng Zhang: Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology
Zhe Hu: Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology
Zhen-Li Huang: Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology
Ming-Qiang Zhu: Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology

Nature Communications, 2014, vol. 5, issue 1, 1-11

Abstract: Abstract Photoswitchable fluorescent diarylethenes are promising in molecular optical memory and photonic devices. However, the performance of current diarylethenes is far from satisfactory because of the scarcity of high-speed switching capability and large fluorescence on-off ratio. Here we report a trident perylenemonoimide dyad modified by triple dithienylethenes whose photochromic fluorescence quenching ratio at the photostationary state exceeds 10,000 and the fluorescence quenching efficiency is close to 100% within seconds of ultraviolet irradiation. The highly sensitive fluorescence on/off switching of the trident dyad enables recyclable fluorescence patterning and all-optical transistors. The prototype optical device based on the trident dyad enables the optical switching of incident light and conversion from incident light wavelength to transmitted light wavelength, which is all-optically controlled, reversible and wavelength-convertible. In addition, the trident dyad-staining block copolymer vesicles are observed via optical nanoimaging with a sub-100 nm resolution, portending a potential prospect of the dithienylethene dyad in super-resolution imaging.

Date: 2014
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DOI: 10.1038/ncomms6709

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