首页|Epitaxial growth of borophene on graphene surface towards efficient and broadband photodetector

Epitaxial growth of borophene on graphene surface towards efficient and broadband photodetector

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In-situ integration of multiple materials with well-defined interfaces as heterostructures is of great interest due to their unique properties and potential for new device functionality.Because of its polymorphism and diverse bonding geometries,borophene is a promising candidate for two-dimensional heterostructures,but suitable synthesis conditions have limited its potential applications.Toward this end,we demonstrate the vertical borophene and graphene heterostructures which form by epitaxial growth of borophene onto multilayer graphene on Cu substrates via chemical vapor deposition,where hydrogen and NaBH4 are respectively used as the carrier gas and the boron source.The lattice structure of the as-synthesized borophene well coincides with the predicted a'-boron sheet.The borophene-based photodetector shows an excellent broadband photoresponse from the ultraviolet(255 nm)to the infrared(940 nm)wavelengths,with enhanced responsivity compared to pristine borophene or graphene photodetectors.This work informs emerging efforts to integrate borophene into nanoelectronic applications for both fundamental investigations and technological applications.

borophenegrapheneheterostructurephotodetectortwo-dimensional materials

Zenghui Wu、Chen Shifan、Zitong Wu、Yi Liu、Wei Shao、Xinchao Liang、Chuang Hou、Guoan Tai

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The State Key Laboratory of Mechanics and Control of Mechanical Structures and Laboratory of Intelligent Nano Materials and Devices of Ministry of Education,College of Aerospace Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China

National Natural Science Foundation of ChinaNatural Science Foundation of Jiangsu ProvinceFundamental Research Funds for the Central UniversitiesFund of Prospective Layout of Scientific Research for NUAA(Nanjing University of Aeronautics and Astronautics)Priority Academic Program Development of Jiangsu Higher Education Institutions

61774085BK20201300NP2022401ILA22009

2024

10.1007/s12274-023-6109-9

纳米研究(英文版)

纳米研究(英文版)

CSTPCD
ISSN：
年,卷(期)：2024.17(4)
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