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Communication

Fluorescence Switchable Conjugated Polymer Microdisk Arrays by Cosolvent Vapor Annealing

1
Department of Materials Science, Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8573, Ibaraki, Japan
2
Tsukuba Research Center for Energy Materials Science (TREMS), Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8573, Ibaraki, Japan
3
Department of Chemistry and Research Center for Smart Molecules, Rikkyo University, Nishi-Ikebukuro 3-34-1, Toshima-ku, Tokyo 171-8501, Japan
*
Author to whom correspondence should be addressed.
Polymers 2021, 13(2), 269; https://doi.org/10.3390/polym13020269
Received: 11 December 2020 / Revised: 8 January 2021 / Accepted: 10 January 2021 / Published: 15 January 2021
Depositing minute light emitters into a regular array is a basic but essential technique in display technology. However, conventional lithographic methodologies involve multistep and energy-consuming processes. Here, we develop a facile method in which organic and polymeric fluorescent dyes spontaneously aggregate to form a patterned microarray. We find that a thin film of fluorescent π-conjugated polymer transforms into micrometer-sized aggregates when exposed to binary organic vapor at ambient temperature. The arrayed microaggregates can be formed over the whole substrate surface when using a quartz substrate that is prepatterned with regular hydrophilic boxes and hydrophobic grids. The resultant microarray is applicable to optical memories and displays when photoswitchable fluorophores are doped into the polymer matrix. View Full-Text
Keywords: microdisk; self-assembly; array; fluorescence; switching microdisk; self-assembly; array; fluorescence; switching
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MDPI and ACS Style

Yamagishi, H.; Matsui, T.; Kitayama, Y.; Aikyo, Y.; Tong, L.; Kuwabara, J.; Kanbara, T.; Morimoto, M.; Irie, M.; Yamamoto, Y. Fluorescence Switchable Conjugated Polymer Microdisk Arrays by Cosolvent Vapor Annealing. Polymers 2021, 13, 269. https://doi.org/10.3390/polym13020269

AMA Style

Yamagishi H, Matsui T, Kitayama Y, Aikyo Y, Tong L, Kuwabara J, Kanbara T, Morimoto M, Irie M, Yamamoto Y. Fluorescence Switchable Conjugated Polymer Microdisk Arrays by Cosolvent Vapor Annealing. Polymers. 2021; 13(2):269. https://doi.org/10.3390/polym13020269

Chicago/Turabian Style

Yamagishi, Hiroshi, Tokiya Matsui, Yusuke Kitayama, Yusuke Aikyo, Liang Tong, Junpei Kuwabara, Takaki Kanbara, Masakazu Morimoto, Masahiro Irie, and Yohei Yamamoto. 2021. "Fluorescence Switchable Conjugated Polymer Microdisk Arrays by Cosolvent Vapor Annealing" Polymers 13, no. 2: 269. https://doi.org/10.3390/polym13020269

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