Direct laser writing of polyimide for flexible graphene photodetectors

Yutong Wang; Chunrui Han; Yi Zhou; Changjun Ke; Yu Wang

doi:10.1117/12.2606955

24 November 2021 Direct laser writing of polyimide for flexible graphene photodetectors

Yutong Wang, Chunrui Han, Yi Zhou, Changjun Ke, Yu Wang

Proceedings Volume 12060, AOPC 2021: Advanced Laser Technology and Applications; 120601P (2021) https://doi.org/10.1117/12.2606955
Event: Applied Optics and Photonics China 2021, 2021, Beijing, China

Abstract

Herein, we report a one-step laser writing method to form porous graphene on polyimide (PI), which is capable of broadband-spectral detection. By controlling different parameters of laser processed patterns, various samples were obtained. The comparative photoresponsivity and photocurrent curves of each porous graphene sample were obtained by conducting photoelectric testing at wavelength of 625 nm. The highest photoresponsivity obtained is 5.6´10^-4 A/W, and the corresponding response and recovery times are 27 and 30 s. The method provides a new route to the fabrication of graphene photodetectors and promotes the development of future applications of optoelectronic devices in wearable and flexible electronics.

Citation Download Citation

Yutong Wang, Chunrui Han, Yi Zhou, Changjun Ke, and Yu Wang "Direct laser writing of polyimide for flexible graphene photodetectors", Proc. SPIE 12060, AOPC 2021: Advanced Laser Technology and Applications, 120601P (24 November 2021); https://doi.org/10.1117/12.2606955

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