Micro-patterned photoalignment of CsPbBr3 nanowires with liquid crystal molecule composite film for polarized emission

Yi Wei; Jun Chen; Jiaxin Wang; Xiaoming Li; Haibo Zeng

doi:10.1039/D1NR04347A

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Micro-patterned photoalignment of CsPbBr₃ nanowires with liquid crystal molecule composite film for polarized emission†

Yi Wei,^a Jun Chen,*^a Jiaxin Wang,^a Xiaoming Li

^a and Haibo Zeng

*^a

Author affiliations

* Corresponding authors

^a Institute of Optoelectronics & Nanomaterials, MIIT Key Laboratory of Advanced Display Materials and Devices, College of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
E-mail: chenjun@njust.edu.cn, zeng.haibo@njust.edu.cn

Abstract

Photoalignment technology provides high potential for the manipulation of molecular orientations and has been widely used in liquid crystal displays. In this work, we align a luminescent film composite of CsPbBr₃ nanowires (NWs) and liquid crystal molecules through photoalignment conducted on a PDMS template. We successfully define different orientations of CsPbBr₃ NWs on the same substrate and the fluorescence micrographs clearly exhibit the orthogonal polarization direction of the two regions. On the basis of this research, we develop micro-photoalignment technology, which is promising for fabricating complex and precise nanostructures for photonic applications.

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Article information

DOI: https://doi.org/10.1039/D1NR04347A
Article type: Paper
Submitted: 05 Jul 2021
Accepted: 05 Aug 2021
First published: 06 Aug 2021

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Nanoscale, 2021,13, 14980-14986

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Micro-patterned photoalignment of CsPbBr₃ nanowires with liquid crystal molecule composite film for polarized emission

Y. Wei, J. Chen, J. Wang, X. Li and H. Zeng, Nanoscale, 2021, 13, 14980 DOI: 10.1039/D1NR04347A

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