Borophene-graphene heterostructure: Preparation and ultrasensitive humidity sensing

被引:99
作者
Hou, Chuang [1 ,2 ]
Tai, Guo'an [1 ]
Liu, Bo [1 ,2 ]
Wu, Zenghui [1 ,2 ]
Yin, Yonghe [1 ,2 ]
机构
[1] Nanjing Univ Aeronaut & Astronaut, State Key Lab Mech & Control Mech Struct, Minist Educ, Coll Aerosp Engn, Nanjing 210016, Peoples R China
[2] Nanjing Univ Aeronaut & Astronaut, Lab Intelligent Nano Mat & Devices, Minist Educ, Coll Aerosp Engn, Nanjing 210016, Peoples R China
基金
中国国家自然科学基金;
关键词
borophene; graphene; heterostructure; humidity sensor; two-dimensional materials; CARBON NANOTUBES; HIGH-SENSITIVITY; BORON; FILMS; SENSORS; GROWTH; OXIDE;
D O I
10.1007/s12274-020-3232-8
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Heterostructure has triggered a surge of interest due to its synergistic effects between two different layers, which contributes to desirable physical properties for extensive potential applications. Structurally stable borophene is becoming a promising candidate for constructing two-dimensional (2D) heterostructures, but it is rarely prepared by suitable synthesis conditions experimentally. Here, we demonstrate that a novel heterostructure composed of hydrogenated borophene and graphene can be prepared by heating the mixture of sodium borohydride and few-layered graphene followed by stepwise and in situ thermal decomposition of sodium borohydride under high-purity hydrogen as the carrier gas. The fabricated borophene-graphene heterostructure humidity sensor shows ultrahigh sensitivity, fast response, and long-time stability. The sensitivity of the fabricated borophene-based sensor is near 700 times higher than that of pristine graphene one at the relative humidity of 85% RH. The sensitivity of the sensor is highest among all the reported chemiresistive sensors based on 2D materials. Besides, the performance of the borophene-graphene flexible sensor maintains good stability after bending, which shows that the borophene-based heterostructures can be applied in wearable electronics. The observed high performance can be ascribed to the well-established charge transfer mechanism upon H2O molecule adsorption. This study further promotes the fundamental studies of interfacial effects and interactions between boron-based 2D heterostructures and chemical species.
引用
收藏
页码:2337 / 2344
页数:8
相关论文
共 53 条
[1]   In Situ Formation of Carbon Nanotubes Encapsulated within Boron Nitride Nanotubes via Electron Irradiation [J].
Arenal, Raul ;
Lopez-Bezanilla, Alejandro .
ACS NANO, 2014, 8 (08) :8419-8425
[2]   Heterointerface effects in the electrointercalation of van der Waals heterostructures [J].
Bediako, D. Kwabena ;
Rezaee, Mehdi ;
Yoo, Hyobin ;
Larson, Daniel T. ;
Zhao, S. Y. Frank ;
Taniguchi, Takashi ;
Watanabe, Kenji ;
Brower-Thomas, Tina L. ;
Kaxiras, Efthimios ;
Kim, Philip .
NATURE, 2018, 558 (7710) :425-+
[3]   Nonvolatile Memory Cells Based on MoS2/Graphene Heterostructures [J].
Bertolazzi, Simone ;
Krasnozhon, Daria ;
Kis, Andras .
ACS NANO, 2013, 7 (04) :3246-3252
[4]  
Di Rienzo C, 2014, NAT COMMUN, V5, DOI [10.1038/ncomms6891, 10.1038/ncomms4113]
[5]   Effects of rapid thermal annealing on humidity sensor based on graphene oxide thin films [J].
Duy-Thach Phan ;
Chung, Gwiy-Sang .
SENSORS AND ACTUATORS B-CHEMICAL, 2015, 220 :1050-1055
[6]   XPS study of the process of oxygen gettering by thin films of PACVD boron [J].
Ennaceur, MM ;
Terreault, B .
JOURNAL OF NUCLEAR MATERIALS, 2000, 280 (01) :33-38
[7]  
Feng BJ, 2016, NAT CHEM, V8, P564, DOI [10.1038/NCHEM.2491, 10.1038/nchem.2491]
[8]   Free-standing dried foam films of graphene oxide for humidity sensing [J].
Feng, Xiayu ;
Chen, Wufeng ;
Yan, Lifeng .
SENSORS AND ACTUATORS B-CHEMICAL, 2015, 215 :316-322
[9]  
Georgiou T, 2013, NAT NANOTECHNOL, V8, P100, DOI [10.1038/nnano.2012.224, 10.1038/NNANO.2012.224]
[10]   2D V-V Binary Materials: Status and Challenges [J].
Guo, Shiying ;
Zhang, Yupeng ;
Ge, Yanqi ;
Zhang, Shengli ;
Zeng, Haibo ;
Zhang, Han .
ADVANCED MATERIALS, 2019, 31 (39)