• 文献标题:   Macroscale single crystal graphene templated directional alignment of liquid-crystal microlens array for light field imaging
  • 文献类型:   Article
  • 作  者:   XIN ZW, DENG B, WEI D, CHEN MC, HU C, ZHANG XY, WANG HW, XIE CS, LIU ZF, PENG HL
  • 作者关键词:  
  • 出版物名称:   APPLIED PHYSICS LETTERS
  • ISSN:   0003-6951 EI 1077-3118
  • 通讯作者地址:   Huazhong Univ Sci Technol
  • 被引频次:   2
  • DOI:   10.1063/1.5109620
  • 出版年:   2019

▎ 摘  要

Single crystal graphene (SCG) as a transparent conductive electrode material with a relatively strong liquid crystal molecule anchoring energy is expected to provide remarkable improvements to the functionalities of electro-optical devices. Here, we efficiently grew macroscale SCG on Cu(111) and transferred it onto a silica substrate to fabricate a liquid-crystal microlens array (LCMLA) integrated with an arrayed photodetector. As shown, the LC molecules can be aligned along a desired direction over the SCG electrode with the zigzag lattice of the graphene. Furthermore, we demonstrate a prototypical plenoptic camera using the SCG-LCMLA with a controlled unidirectional LC alignment. Dual mode imaging to acquire both two-dimensional and light field images was realized by integrating photodetectors with the electrically adjustable SCG-LCMLA.