scholarly journals Missing links towards understanding the equilibrium shapes of hexagonal boron nitride: algorithm, hydrogen passivation, and temperature effects

Nanoscale ◽  
2018 ◽  
Vol 10 (37) ◽  
pp. 17683-17690 ◽  
Author(s):  
Jingzhao Zhang ◽  
Wenjing Zhao ◽  
Junyi Zhu
Keyword(s):  
Boron Nitride ◽  
Finite Temperature ◽  
Temperature Effects ◽  
Hexagonal Boron Nitride ◽  
Hydrogen Passivation ◽  
Equilibrium Shapes ◽  
Temperature And Pressure

Accurate algorithm and hydrogen passivation with finite temperature and pressure lead to exact predictions of h-BN equilibrium shapes.

Explosion Phase Formation of Nanocrystalline Boron Nitrides Upon Pulsed-Laser-Induced Liquid/Solid Interfacial Reaction

2003 ◽  
Vol 18 (12) ◽  
pp. 2774-2778 ◽  
Author(s):  
J.B. Wang ◽  
X.L. Zhong ◽  
C.Y. Zhang ◽  
B.Q. Huang ◽  
G.W. Yang
Keyword(s):  
Boron Nitride ◽  
Interfacial Reaction ◽  
Hexagonal Boron Nitride ◽  
Pulsed Laser ◽  
X Ray Diffraction ◽  
X Ray ◽  
Fourier Transformed Infrared Spectroscopy ◽  
Transmission Electron ◽  
Temperature And Pressure ◽  
Liquid Acetone

Boron nitride (BN) nanocrystals with explosion (E) phase were prepared by a novel laser-assisted materials fabrication, i.e., pulsed-laser-induced liquid (acetone)/solid (hexagonal boron nitride bulk) interfacial reaction at normal temperature and pressure. Typical diameters of these synthesized quasi-spherical BN nanocrystals were in the range of 30 to 80 nm. Transmission electron microscopy, x-ray diffraction, and Fourier transformed infrared spectroscopy were used to identify the morphologies and structures of the synthesized nanocrystals. Additionally, we proposed the formation mechanism of cubic-BN and E-BN nanocrystals upon pulsed-laser-induced liquid/solid interfacial reaction, in which both liquid and solid were simultaneously involved.

Marcus-Hush Theory Revealed by Electron Tunneling Through Hexagonal Boron Nitride

2019 ◽  
Author(s):  
Matěj Velický ◽  
Sheng Hu ◽  
Colin R. Woods ◽  
Peter S. Toth ◽  
Viktor Zólyomi ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Boron Nitride ◽  
Electron Tunneling ◽  
Hexagonal Boron Nitride ◽  
Large Body ◽  
Liquid Solution ◽  
Limiting Current ◽  
Electron Transfer Rate Constant ◽  
Electrochemical Parameters ◽  
Voltammetric Measurements

Marcus-Hush theory of electron transfer is one of the pillars of modern electrochemistry with a large body of supporting experimental evidence presented to date. However, some predictions, such as the electrochemical behavior at microdisk electrodes, remain unverified. Herein, we present a study of electron tunneling across a hexagonal boron nitride barrier between a graphite electrode and redox levels in a liquid solution. This was achieved by the fabrication of microdisk electrodes with a typical diameter of 5 µm. Analysis of voltammetric measurements, using two common redox mediators, yielded several electrochemical parameters, including the electron transfer rate constant, limiting current, and transfer coefficient. They show a significant departure from the Butler-Volmer behavior in a clear manifestation of the Marcus-Hush theory of electron transfer. In addition, our system provides a novel experimental platform, which could be applied to address a number of scientific problems such as identification of reaction mechanisms, surface modification, or long-range electron transfer.

scholarly journals Self-Sensitization and Photo-Polymerization of Diacetylene Molecules Self-Assembled on a Hexagonal-Boron Nitride Nanosheet

Polymers ◽  
2018 ◽  
Vol 10 (2) ◽  
pp. 206 ◽  
Author(s):  
Elisseos Verveniotis ◽  
Yuji Okawa ◽  
Kenji Watanabe ◽  
Takashi Taniguchi ◽  
Takaaki Taniguchi ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
Photo Polymerization ◽  
Boron Nitride Nanosheet ◽  
Self Assembled

scholarly journals First-Principles Identification of Single Photon Emitters Based on Carbon Clusters in Hexagonal Boron Nitride

2021 ◽  
Vol 125 (6) ◽  
pp. 1325-1335 ◽  
Author(s):  
Cesar Jara ◽  
Tomáš Rauch ◽  
Silvana Botti ◽  
Miguel A. L. Marques ◽  
Ariel Norambuena ◽  
...  
Keyword(s):  
Boron Nitride ◽  
First Principles ◽  
Single Photon ◽  
Hexagonal Boron Nitride ◽  
Carbon Clusters ◽  
Single Photon Emitters

scholarly journals Stimulated Emission Depletion Microscopy with Color Centers in Hexagonal Boron Nitride

ACS Photonics ◽  
2021 ◽  
Author(s):  
Prince Khatri ◽  
Ralph Nicholas Edward Malein ◽  
Andrew J. Ramsay ◽  
Isaac J. Luxmoore
Keyword(s):  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
Stimulated Emission ◽  
Color Centers ◽  
Stimulated Emission Depletion
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