Large-area high-quality graphene on Ge(001)/Si(001) substrates

Nanoscale ◽  
2016 ◽  
Vol 8 (21) ◽  
pp. 11241-11247 ◽  
Author(s):  
I. Pasternak ◽  
P. Dabrowski ◽  
P. Ciepielewski ◽  
V. Kolkovsky ◽  
Z. Klusek ◽  
...  
Keyword(s):  
Experimental Data ◽  
Large Area ◽  
High Quality ◽  
Cvd Method ◽  
Graphene Films

Various experimental data revealing large-area high-quality graphene films grown by the CVD method on Ge(001)/Si(001) substrates are presented.

scholarly journals Large-Area Synthesis of High-Quality and Uniform Graphene Films on Copper Foils

Science ◽  
2009 ◽  
Vol 324 (5932) ◽  
pp. 1312-1314 ◽  
Author(s):  
X. Li ◽  
W. Cai ◽  
J. An ◽  
S. Kim ◽  
J. Nah ◽  
...  
Keyword(s):  
Large Area ◽  
High Quality ◽  
Copper Foils ◽  
Graphene Films

Versatile Water-Based Transfer of Large-Area Graphene Films onto Flexible Substrates

MRS Advances ◽  
2017 ◽  
Vol 2 (60) ◽  
pp. 3749-3754
Author(s):  
Maria Kim ◽  
Changfeng Li ◽  
Jannatul Susoma ◽  
Juha Riikonen ◽  
Harri Lipsanen
Keyword(s):  
Transfer Process ◽  
Flexible Electronics ◽  
Large Scale ◽  
Hot Water ◽  
Polyethylene Naphthalate ◽  
Large Area ◽  
High Quality ◽  
Flexible Polymer ◽  
Graphene Films ◽  
Water Based

ABSTRACTNext-generation electronic devices are expected to demonstrate greater utility, efficiency and durability. Meanwhile, plastics such as polyethylene terephthalate (PET), polyethylene naphthalate (PEN) and variety of poly(para-xylylene) polymers enable transformational advantages to device shape, flexibility, weight, transparency and recyclability. Exhibiting a combination of outstanding mechanical, electrical, optical, and chemical properties of graphene with the plastic substrates could propose ideal material for the future flexible electronics. Chemical vapor deposition (CVD) allows cost-effective fabrication of a high-quality large-area graphene films, however, the critical issue is clean and noninvasive transfer of the films onto a desired substrate. The water-based delamination of CVD grown graphene on Cu can be considered as a “green” transfer process utilizing only hot deionized water. We investigated a method requiring only two essential steps: coating of 6-inch monolayer CVD graphene with transparent and flexible polymer, and Cu delamination in hot water. Proposed method is inexpensive, reproducible, environmentally friendly, waste-free and suitable for large-scale, high quality graphene. The transfer process demonstrated films with enhanced charge carrier mobility, high uniformity, free of mechanical defects, and sheet resistance as low as ∼50 Ω/sq with 96.5 % transparency at 550 nm wavelength.

scholarly journals Establishment of a reliable transfer process for fabricating chemical vapor deposition-grown graphene films with advanced and repeatable electrical properties

RSC Advances ◽  
2018 ◽  
Vol 8 (35) ◽  
pp. 19846-19851 ◽  
Author(s):  
Dongyun Sun ◽  
Wei Wang ◽  
Zhaoping Liu
Keyword(s):  
Chemical Vapor Deposition ◽  
Electrical Properties ◽  
Transfer Process ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
High Quality ◽  
Cvd Method ◽  
Graphene Films ◽  
Grown Graphene ◽  
Commercial Applications

Graphene films grown by the chemical vapor deposition (CVD) method have attracted intensive attention due to their native advantages of both high quality and large quantity for commercial applications.

Wetting behaviors and applications of metal-catalyzed CVD grown graphene

2018 ◽  
Vol 6 (45) ◽  
pp. 22437-22464 ◽  
Author(s):  
Afzal Khan ◽  
Mohammad Rezwan Habib ◽  
Rishi Ranjan Kumar ◽  
Sk Masiul Islam ◽  
V. Arivazhagan ◽  
...  
Keyword(s):  
Chemical Vapor Deposition ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Large Area ◽  
High Quality ◽  
Graphene Films ◽  
Cvd Growth ◽  
Grown Graphene ◽  
Metal Catalyzed ◽  
Wetting Behaviors

Metal-catalyzed chemical vapor deposition (CVD) growth of graphene is one of the most important techniques to produce high quality and large area graphene films.

High-quality and efficient transfer of large-area graphene films onto different substrates

Carbon ◽  
2013 ◽  
Vol 56 ◽  
pp. 271-278 ◽  
Author(s):  
Xu-Dong Chen ◽  
Zhi-Bo Liu ◽  
Chao-Yi Zheng ◽  
Fei Xing ◽  
Xiao-Qing Yan ◽  
...  
Keyword(s):  
Large Area ◽  
High Quality ◽  
Graphene Films ◽  
Efficient Transfer

scholarly journals A Novel Carbon-Assisted Chemical Vapor Deposition Growth of Large-Area Uniform Monolayer MoS2 and WS2

Nanomaterials ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 2423
Author(s):  
Jeonghwan Bae ◽  
Youngdong Yoo
Keyword(s):  
Chemical Vapor Deposition ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Carbon Powder ◽  
Carbon Cloth ◽  
Monolayer Mos2 ◽  
Large Area ◽  
High Quality ◽  
Chemical Vapor Deposition Growth ◽  
Cvd Method

Monolayer MoS2 can be used for various applications such as flexible optoelectronics and electronics due to its exceptional optical and electronic properties. For these applications, large-area synthesis of high-quality monolayer MoS2 is highly desirable. However, the conventional chemical vapor deposition (CVD) method using MoO3 and S powder has shown limitations in synthesizing high-quality monolayer MoS2 over a large area on a substrate. In this study, we present a novel carbon cloth-assisted CVD method for large-area uniform synthesis of high-quality monolayer MoS2. While the conventional CVD method produces thick MoS2 films in the center of the substrate and forms MoS2 monolayers at the edge of the thick MoS2 films, our carbon cloth-assisted CVD method uniformly grows high-quality monolayer MoS2 in the center of the substrate. The as-synthesized monolayer MoS2 was characterized in detail by Raman/photoluminescence spectroscopy, atomic force microscopy, and transmission electron microscopy. We reveal the growth process of monolayer MoS2 initiated from MoS2 seeds by synthesizing monolayer MoS2 with varying reaction times. In addition, we show that the CVD method employing carbon powder also produces uniform monolayer MoS2 without forming thick MoS2 films in the center of the substrate. This confirms that the large-area growth of monolayer MoS2 using the carbon cloth-assisted CVD method is mainly due to reducing properties of the carbon material, rather than the effect of covering the carbon cloth. Furthermore, we demonstrate that our carbon cloth-assisted CVD method is generally applicable to large-area uniform synthesis of other monolayer transition metal dichalcogenides, including monolayer WS2.

scholarly journals Gas phase controlled deposition of high quality large-area graphene films

2010 ◽  
Vol 46 (9) ◽  
pp. 1422 ◽  
Author(s):  
Shishir Kumar ◽  
Niall McEvoy ◽  
Tarek Lutz ◽  
Gareth P. Keeley ◽  
Valeria Nicolosi ◽  
...  
Keyword(s):  
Gas Phase ◽  
Large Area ◽  
High Quality ◽  
Graphene Films ◽  
Controlled Deposition

scholarly journals Growth of a Large, Single-Crystalline WS2 Monolayer for High-Performance Photodetectors by Chemical Vapor Deposition

Micromachines ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 137
Author(s):  
Ying Chen
Keyword(s):  
High Performance ◽  
Chemical Vapor ◽  
Fast Response ◽  
Tungstic Acid ◽  
Large Area ◽  
High Quality ◽  
Promising Candidate ◽  
Cvd Method ◽  
Ws2 Nanosheets ◽  
Ws2 Monolayer

2D WS2 is a promising candidate for the next generation nanoelectronics, spintronics, valleytronics, and optoelectronics. However, the uncontrollably large-area growth of WS2 nanosheets and their unsatisfactory performance of the photodetectors based on WS2 hindered its applications. Here, we proposed a CVD method using tungstic acid as the precursors to grow WS2 flakes. After being characterized by AFM, Raman, PL, and TEM, we found the as-grown WS2 flakes were high-quality structures. Then the photodetectors based on the as-grown WS2 were fabricated, which exhibited high responsivity (7.3 A W−1), a fast response rate (a response time of 5 ms and a recovery time of 7 ms), prefect external quantum efficiency (EQE) (1814%), and remarkable detectivity (D*) (3.4 × 1012 Jones). Our works provided a new CVD method to grow some high-quality WS2 nanosheets.

Large-area synthesis of high-quality β-MnO2nanowires and the mechanism of formation through a facile mineralization process

2005 ◽  
Vol 16 (10) ◽  
pp. 2072-2076 ◽  
Author(s):  
Fu Zhou ◽  
Huagui Zheng ◽  
Xuemei Zhao ◽  
Qixun Guo ◽  
Xiaomin Ni ◽  
...  
Keyword(s):  
Mechanism Of Formation ◽  
Large Area ◽  
Mineralization Process ◽  
High Quality
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