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Dynamic Control of High-Range Photoresponsivity in a Graphene Nanoribbon Photodetector.
Nanoscale Res Lett. 2020 Jun 03; 15(1):124.NR

Abstract

Graphene has been demonstrated to be a promising material for optoelectronics and photodetection devices because of its ultra-broadband optical absorption and high carrier mobility. However, its integration with optoelectronic systems has been limited by the zero-bandgap and the lack of a gain mechanism. Herein, we demonstrate a novel photodetector based on the graphene nanoribbons (GRNs) with a sizable bandgap. Utilizing trapping charge at the interface between SiO2 and light-doped silicon, an ultrahigh gain of 22,400 has been obtained. Our devices show an enhanced photoresponsivity (~ 800 AW-1) while the response speed is still fast (up to 10 μs). This photoresponsivity is about two orders of magnitude higher compared to that of a previous graphene-based photodetector. The photodetector exhibits a wide-range tunability via source-drain bias and back gate voltage. Our work addresses key challenges for the photodetectors and potentially provides the desired pathway toward practical application of graphene photodetectors that can be externally manipulated by an electric field with fast response speed and high sensitivity.

Authors+Show Affiliations

School of Electronics and Information, Hangzhou Dianzi University, 1158 Second Street, Xiasha College Park, Hangzhou, 310018, Zhejiang, People's Republic of China. juanyu@hdu.edu.cn. School of Physics and Electronics, Hunan Key Laboratory for Super-microstructure and Ultrafast Process, Central South University, 932 South Lushan Road, Changsha, Hunan, 410083, People's Republic of China. juanyu@hdu.edu.cn.School of Physics and Electronics, Hunan Key Laboratory for Super-microstructure and Ultrafast Process, Central South University, 932 South Lushan Road, Changsha, Hunan, 410083, People's Republic of China.School of Electronics and Information, Hangzhou Dianzi University, 1158 Second Street, Xiasha College Park, Hangzhou, 310018, Zhejiang, People's Republic of China.School of Physics and Electronics, Hunan Key Laboratory for Super-microstructure and Ultrafast Process, Central South University, 932 South Lushan Road, Changsha, Hunan, 410083, People's Republic of China.School of Physics and Electronics, Hunan Key Laboratory for Super-microstructure and Ultrafast Process, Central South University, 932 South Lushan Road, Changsha, Hunan, 410083, People's Republic of China.School of Physics and Electronics, Hunan Key Laboratory for Super-microstructure and Ultrafast Process, Central South University, 932 South Lushan Road, Changsha, Hunan, 410083, People's Republic of China. liuyanping@csu.edu.cn. State Key Laboratory of High-Performance Complex Manufacturing, Central South University, 932 South Lushan Road, Changsha, Hunan, 410083, People's Republic of China. liuyanping@csu.edu.cn. Shenzhen Research Institute of Central South University, A510a, Virtual University Building, Southern District, High-tech Industrial Park, Shenzhen, 518057, People's Republic of China. liuyanping@csu.edu.cn.School of Chemical and Biomolecular Engineering, The University of Sydney, Camperdown, Sydney, NSW, 2006, Australia. zongwen.liu@sydney.edu.au.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32494902

Citation

Yu, Juan, et al. "Dynamic Control of High-Range Photoresponsivity in a Graphene Nanoribbon Photodetector." Nanoscale Research Letters, vol. 15, no. 1, 2020, p. 124.
Yu J, Zhong J, Kuang X, et al. Dynamic Control of High-Range Photoresponsivity in a Graphene Nanoribbon Photodetector. Nanoscale Res Lett. 2020;15(1):124.
Yu, J., Zhong, J., Kuang, X., Zeng, C., Cao, L., Liu, Y., & Liu, Z. (2020). Dynamic Control of High-Range Photoresponsivity in a Graphene Nanoribbon Photodetector. Nanoscale Research Letters, 15(1), 124. https://doi.org/10.1186/s11671-020-03352-7
Yu J, et al. Dynamic Control of High-Range Photoresponsivity in a Graphene Nanoribbon Photodetector. Nanoscale Res Lett. 2020 Jun 3;15(1):124. PubMed PMID: 32494902.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Dynamic Control of High-Range Photoresponsivity in a Graphene Nanoribbon Photodetector. AU - Yu,Juan, AU - Zhong,Jiahong, AU - Kuang,Xiaofei, AU - Zeng,Cheng, AU - Cao,Lingkai, AU - Liu,Yanping, AU - Liu,Zongwen, Y1 - 2020/06/03/ PY - 2020/01/20/received PY - 2020/05/11/accepted PY - 2020/6/5/entrez PY - 2020/6/5/pubmed PY - 2020/6/5/medline KW - Graphene nanoribbons KW - Photodetector KW - Photoresponsivity SP - 124 EP - 124 JF - Nanoscale research letters JO - Nanoscale Res Lett VL - 15 IS - 1 N2 - Graphene has been demonstrated to be a promising material for optoelectronics and photodetection devices because of its ultra-broadband optical absorption and high carrier mobility. However, its integration with optoelectronic systems has been limited by the zero-bandgap and the lack of a gain mechanism. Herein, we demonstrate a novel photodetector based on the graphene nanoribbons (GRNs) with a sizable bandgap. Utilizing trapping charge at the interface between SiO2 and light-doped silicon, an ultrahigh gain of 22,400 has been obtained. Our devices show an enhanced photoresponsivity (~ 800 AW-1) while the response speed is still fast (up to 10 μs). This photoresponsivity is about two orders of magnitude higher compared to that of a previous graphene-based photodetector. The photodetector exhibits a wide-range tunability via source-drain bias and back gate voltage. Our work addresses key challenges for the photodetectors and potentially provides the desired pathway toward practical application of graphene photodetectors that can be externally manipulated by an electric field with fast response speed and high sensitivity. SN - 1931-7573 UR - https://www.unboundmedicine.com/medline/citation/32494902/Dynamic_Control_of_High_Range_Photoresponsivity_in_a_Graphene_Nanoribbon_Photodetector_ L2 - https://dx.doi.org/10.1186/s11671-020-03352-7 DB - PRIME DP - Unbound Medicine ER -
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