Extraordinary magnetoresistance in shunted chemical vapor deposition grown graphene devices

2011 ◽  
Vol 99 (2) ◽  
pp. 022108 ◽  
Author(s):  
Adam L. Friedman ◽  
Jeremy T. Robinson ◽  
F. Keith Perkins ◽  
Paul M. Campbell
2017 ◽  
Vol 5 (5) ◽  
pp. 1113-1120 ◽  
Author(s):  
Min Zhao ◽  
Lanqin Yan ◽  
Xianfeng Zhang ◽  
Lihua Xu ◽  
Zhiwei Song ◽  
...  

3, 5 and 10 nm thick Ti decorated chemical-vapor-deposition (CVD) grown graphene devices (Ti/Gr) for NH3 detection were fabricated, and their sensing performances were great promoted by visible light illumination.


2015 ◽  
Vol 1 (6) ◽  
pp. e1500222 ◽  
Author(s):  
Luca Banszerus ◽  
Michael Schmitz ◽  
Stephan Engels ◽  
Jan Dauber ◽  
Martin Oellers ◽  
...  

Graphene research has prospered impressively in the past few years, and promising applications such as high-frequency transistors, magnetic field sensors, and flexible optoelectronics are just waiting for a scalable and cost-efficient fabrication technology to produce high-mobility graphene. Although significant progress has been made in chemical vapor deposition (CVD) and epitaxial growth of graphene, the carrier mobility obtained with these techniques is still significantly lower than what is achieved using exfoliated graphene. We show that the quality of CVD-grown graphene depends critically on the used transfer process, and we report on an advanced transfer technique that allows both reusing the copper substrate of the CVD growth and making devices with mobilities as high as 350,000 cm2V–1s–1, thus rivaling exfoliated graphene.


2014 ◽  
Vol 2 (37) ◽  
pp. 7776-7784 ◽  
Author(s):  
Muhammad Waqas Iqbal ◽  
Muhammad Zahir Iqbal ◽  
Xiaozhan Jin ◽  
Jonghwa Eom ◽  
Chanyong Hwang

We report the characterization of high-quality chemical-vapor-deposition (CVD)-grown graphene devices on CVD-grown hexagonal boron nitride (h-BN).


ACS Nano ◽  
2013 ◽  
Vol 8 (1) ◽  
pp. 269-274 ◽  
Author(s):  
Jin-Young Kim ◽  
Jongho Lee ◽  
Wi Hyoung Lee ◽  
Iskandar N. Kholmanov ◽  
Ji Won Suk ◽  
...  

2019 ◽  
Vol 290 ◽  
pp. 107-112
Author(s):  
Raed Abdalrheem ◽  
Fong Kwong Yam ◽  
Abdul Razak Ibrahim ◽  
Khi Poay Beh ◽  
Hwee San Lim ◽  
...  

Studying an influence of several parameters on Chemical Vapor Deposition (CVD) used for graphene synthesis is crucial to optimizing the graphene quality to be Compatible with advanced devices. The effect of different hydrogen (H2) flow-rates (0, 50, 100, 150, 200, 250, and 300 sccm) during the pre-annealing process on CVD grown graphene have been reported. This study revealed that hydrogen flow rates during annealing changed the surface roughness/smoothness of the copper substrates. For high hydrogen flow rates, the smoothing effect was increased. Furthermore, the annealed graphene samples emerged a deferent number of layers because of morphological surface changes. According to Raman D- to G-band intensity ratios (ID/IG), the graphene quality was influenced by the annealing hydrogen flowrate. The visible light transmittance values of the grown graphene samples confirmed a few number of layers (mono to seven-layer). Mostly, the samples which annealed under moderate hydrogen flow rates showed less defects intensities and higher crystallite sizes.


2020 ◽  
Vol 709 ◽  
pp. 138225
Author(s):  
Derya Ataç ◽  
Johnny G.M. Sanderink ◽  
Sachin Kinge ◽  
Dirk J. Gravesteijn ◽  
Alexey Y. Kovalgin ◽  
...  

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