Graphene Hybrid Structures for Integrated and Flexible Optoelectronics

Xiaoqing Chen; Khurram Shehzad; Li Gao; Mingsheng Long; Hui Guo; Shuchao Qin; Xiaomu Wang; Fengqiu Wang; Yi Shi; Weida Hu; Yang Xu; Xinran Wang

doi:10.1002/adma.201902039

Graphene Hybrid Structures for Integrated and Flexible Optoelectronics

Adv Mater. 2020 Jul;32(27):e1902039. doi: 10.1002/adma.201902039. Epub 2019 Jul 8.

Authors

Xiaoqing Chen^{1

2}, Khurram Shehzad³, Li Gao⁴, Mingsheng Long⁵, Hui Guo¹, Shuchao Qin², Xiaomu Wang², Fengqiu Wang², Yi Shi², Weida Hu⁵, Yang Xu³, Xinran Wang²

Affiliations

¹ School of Microelectronics, Xidian University, Xian, 710071, China.
² National Laboratory of Solid State Microstructures, School of Electronic Science and Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China.
³ College of Information Science and Electronic Engineering, College of Microelectronics, ZJU-UIUC Joint Institute, State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou, Zhejiang, 310027, China.
⁴ Key Laboratory for Organic Electronics and Information Displays (KLOEID), Institute of Advanced Materials (IAM), School of Materials Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing, 210046, China.
⁵ National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, 500 Yu Tian Road, Shanghai, 200083, China.

PMID: 31282020
DOI: 10.1002/adma.201902039

Abstract

Graphene (Gr) has many unique properties including gapless band structure, ultrafast carrier dynamics, high carrier mobility, and flexibility, making it appealing for ultrafast, broadband, and flexible optoelectronics. To overcome its intrinsic limit of low absorption, hybrid structures are exploited to improve the device performance. Particularly, van der Waals heterostructures with different photosensitive materials and photonic structures are very effective for improving photodetection and modulation efficiency. With such hybrid structures, Gr hybrid photodetectors can operate from ultraviolet to terahertz, with significantly improved R (up to 10⁹ A W^-1 ) and bandwidth (up to 128 GHz). Furthermore, integration of Gr with silicon (Si) complementary metal-oxide-semiconductor (CMOS) circuits, the human body, and soft tissues is successfully demonstrated, opening promising opportunities for wearable sensors and biomedical electronics. Here, the recent progress in using Gr hybrid structures toward high-performance photodetectors and integrated optoelectronic applications is reviewed.

Keywords: flexible electronics; graphene; heterostructures; photodetectors; van der Waals.

Publication types

Review

Abstract

Publication types

Grants and funding