• 文献标题:   Broadband photoresponse of flexible textured reduced graphene oxide films
  • 文献类型:   Article
  • 作  者:   YANG HY, LEE HJ, JUN Y, YUN YJ
  • 作者关键词:   graphene, textured film, wrinkle, reduced graphene oxide, flexible substrate, transparent substrate, broadband photodetector
  • 出版物名称:   THIN SOLID FILMS
  • ISSN:   0040-6090 EI 1879-2731
  • 通讯作者地址:   Konkuk Univ
  • 被引频次:   0
  • DOI:   10.1016/j.tsf.2020.137785
  • 出版年:   2020

▎ 摘  要

Herein, we fabricated flexible and transparent textured graphene films based on reduced graphene oxide flakes on polyethylene terephthalate substrates using a spray coating technique and investigated their photoresponsivity over a broadband range of wavelengths from the ultraviolet to infrared regions. The fabricated films exhibited a broadband photoresponse, with responsivity values reaching 2.5 mA/W at 365 nm, 2.4 mA/W at 530 nm, and 1.7 mA/W at 940 nm. In addition, the photoresponsivity was studied under bending deformation. Our flexible and textured reduced graphene oxide films could maintain a stable photoresponse upon bending for the radii of curvature larger than similar to 0.35 cm with a photocurrent deviation of <10% in the infrared range. The broadband photoresponse with good flexibility and transparency suggests that the reduced graphene oxide films can have immense potential for applications in flexible optoelectronic technologies.