scholarly journals Selective etching of hexagonal boron nitride by high-pressure CF4 plasma for individual one-dimensional ohmic contacts to graphene layers

2020 ◽  
Vol 117 (24) ◽  
pp. 243101
Author(s):  
Yuta Seo ◽  
Satoru Masubuchi ◽  
Eisuke Watanabe ◽  
Momoko Onodera ◽  
Rai Moriya ◽  
...  
Keyword(s):  
High Pressure ◽  
Boron Nitride ◽  
Ohmic Contacts ◽  
Hexagonal Boron Nitride ◽  
Selective Etching ◽  
One Dimensional ◽  
Graphene Layers

Polycrystalline boron nitride constructed from hexagonal boron nitride

RSC Advances ◽  
2014 ◽  
Vol 4 (73) ◽  
pp. 38589-38593 ◽  
Author(s):  
N. Xu ◽  
J. F. Li ◽  
B. L. Huang ◽  
B. L. Wang
Keyword(s):  
High Pressure ◽  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
Polycrystalline Structure ◽  
Shed Light

Two classes of structural families of boron nitride allotropes (named as X-BNs and L-BNs) are proposed to shed light on the polycrystalline structure of high pressure h-BN.

scholarly journals Spatially resolved one-dimensional boundary states in graphene–hexagonal boron nitride planar heterostructures

2014 ◽  
Vol 5 (1) ◽  
Author(s):  
Jewook Park ◽  
Jaekwang Lee ◽  
Lei Liu ◽  
Kendal W. Clark ◽  
Corentin Durand ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
One Dimensional ◽  
Spatially Resolved ◽  
Boundary States ◽  
Dimensional Boundary

Coating performance of hexagonal boron nitride and graphene layers

2D Materials ◽  
2021 ◽  
Vol 8 (3) ◽  
pp. 034002
Author(s):  
Xuemei Li ◽  
Yuyang Long ◽  
Limin Ma ◽  
Jidong Li ◽  
Jun Yin ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
Coating Performance ◽  
Graphene Layers

Tribology in Superplastic Forming Processing of 3Y-TZP/Al2O3 Ceramic at Elevated Temperatures

2007 ◽  
Vol 551-552 ◽  
pp. 507-512
Author(s):  
F. Wang ◽  
Kai Feng Zhang ◽  
Wen Bo Han
Keyword(s):  
High Pressure ◽  
Boron Nitride ◽  
Friction Factor ◽  
Elevated Temperatures ◽  
Hexagonal Boron Nitride ◽  
Superplastic Forming ◽  
Ceramic Materials ◽  
Cubic Phase ◽  
X Ray Diffraction ◽  
Higher Temperature

Superplastic forming processing of ceramic materials at high temperatures and high pressure puts forward very high requests to moulds and lubricants, at which conditions seeking for appropriate lubricants is one of important preconditions in the superplastic forming of ceramic materials. Using ring compressive testing, lubricities of hexagonal boron nitride in superplastic compressive forming processing of 3Y-TZP/Al2O3 ceramic composite at elevated temperatures were investigated. Theoretical curves of friction factor were drawn according to upper bound method. Ring compressive tests were adopted at temperature of 1400 °C-1600 °C. The results indicate that when BN is used, friction factor is about 0.4, meanwhile friction factor don’t have great changes with higher temperature and increasing strain rate. X-ray diffraction shows that under high temperature and high pressure no boron nitride converts to cubic phase, which remains at room temperature.

scholarly journals Blue emission at atomically sharp 1D heterojunctions between graphene and h-BN

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Gwangwoo Kim ◽  
Kyung Yeol Ma ◽  
Minsu Park ◽  
Minsu Kim ◽  
Jonghyuk Jeon ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Boron Nitride ◽  
Physical Properties ◽  
Hexagonal Boron Nitride ◽  
Graphene Quantum Dots ◽  
Blue Emission ◽  
Electronic States ◽  
Optoelectronic Property ◽  
Two Dimensional ◽  
One Dimensional

Abstract Atomically sharp heterojunctions in lateral two-dimensional heterostructures can provide the narrowest one-dimensional functionalities driven by unusual interfacial electronic states. For instance, the highly controlled growth of patchworks of graphene and hexagonal boron nitride (h-BN) would be a potential platform to explore unknown electronic, thermal, spin or optoelectronic property. However, to date, the possible emergence of physical properties and functionalities monitored by the interfaces between metallic graphene and insulating h-BN remains largely unexplored. Here, we demonstrate a blue emitting atomic-resolved heterojunction between graphene and h-BN. Such emission is tentatively attributed to localized energy states formed at the disordered boundaries of h-BN and graphene. The weak blue emission at the heterojunctions in simple in-plane heterostructures of h-BN and graphene can be enhanced by increasing the density of the interface in graphene quantum dots array embedded in the h-BN monolayer. This work suggests that the narrowest, atomically resolved heterojunctions of in-plane two-dimensional heterostructures provides a future playground for optoelectronics.

The geometry of hexagonal boron nitride clusters in the initial stages of chemical vapor deposition growth on a Cu(111) surface

Nanoscale ◽  
2019 ◽  
Vol 11 (28) ◽  
pp. 13366-13376 ◽  
Author(s):  
Zhong-Qiang Liu ◽  
Jichen Dong ◽  
Feng Ding
Keyword(s):  
Chemical Vapor Deposition ◽  
Boron Nitride ◽  
Vapor Deposition ◽  
Critical Size ◽  
Hexagonal Boron Nitride ◽  
Chemical Vapor ◽  
Two Dimensional ◽  
Chemical Vapor Deposition Growth ◽  
One Dimensional

In the initial stages of chemical vapor deposition on a Cu(111) surface, one-dimensional Bn–1Nn (N-rich environment) or BnNn–1 (B-rich) chains first appear, and they transform to two-dimensional sp2 networks or h-BN islands at a critical size of 13.

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