Reduced Inhomogeneous Broadening in Hexagonal Boron Nitride-Encapsulated MoTe2 Monolayers by Thermal Treatment

2020 ◽  
Vol 2 (9) ◽  
pp. 2739-2744
Author(s):  
Shunya Hayashida ◽  
Risa Saitoh ◽  
Kenji Watanabe ◽  
Takashi Taniguchi ◽  
Kentarou Sawano ◽  
...  
Keyword(s):  
Thermal Treatment ◽  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
Inhomogeneous Broadening

Modification of hexagonal boron nitride by thermal treatment

2021 ◽  
Vol 56 (12) ◽  
pp. 7298-7307
Author(s):  
Leonardo Garro Mena ◽  
Keith L. Hohn
Keyword(s):  
Thermal Treatment ◽  
Boron Nitride ◽  
Hexagonal Boron Nitride

Elaboration of h-Bn Sheathed β-Sic Nanocables

2003 ◽  
Vol 772 ◽  
Author(s):  
K. Saulig-Wenger ◽  
D. Cornu ◽  
F. Chassagneux ◽  
P. Miele ◽  
T. Epicier
Keyword(s):  
Silicon Carbide ◽  
Chemical Composition ◽  
Thermal Treatment ◽  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
Silicon Powder ◽  
The Core ◽  
Parallel Direction ◽  
Cubic Silicon Carbide

Abstracth-BN sheathed β-SiC nanocables were synthesized under argon at 1200°C by the direct thermal treatment of a silicon powder mixed with turbostratic boron nitride. The structure and the chemical composition of these nanocables have been investigated by HRTEM, EDX and EELS. They have a diameter ranging from 10 to 80 nm. The core of these nanocomposites is composed of pure cubic silicon carbide and the outer layers have been shown to be hexagonal boron nitride planes, set in a parallel direction to the nanocables axis.

Development of Crystallinity in Turbostratic Boron Nitride Derived from Polymeric Precursors

1991 ◽  
Vol 49 ◽  
pp. 954-955
Author(s):  
X. Qiu ◽  
A. K. Datye ◽  
T. T. Borek ◽  
R. T. Paine
Keyword(s):  
Thermal Treatment ◽  
Boron Nitride ◽  
Diffraction Pattern ◽  
Polymeric Precursors ◽  
Polymer Precursors ◽  
Diffuse Ring

Boron nitride derived from polymer precursors is of great interest for applications such as fibers, coatings and novel forms such as aerogels. The BN is prepared by the polymerization of functionalized borazine and thermal treatment in nitrogen at 1200°C. The BN powders obtained by this route are invariably trubostratic wherein the sheets of hexagonal BN are randomly oriented to yield the so-called turbostratic modification. Fib 1a and 1b show images of BN powder with the corresponding diffraction pattern in fig. 1c. The (0002) reflection from BN is seen as a diffuse ring with occational spots that come from crystals of BN such as those shown in fig. 1b. The (0002) lattice fringes of BN seen in these powders are the most characteristic indication of the crystallinity of the BN.

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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