Sökning: "h-BN"
Visar resultat 6 - 10 av 14 avhandlingar innehållade ordet h-BN.
6. Growth and microstructure of reactive sputter deposited boron nitride : carbon (BN:C) thin films
Sammanfattning : Growth, microstructure and mechanical properties of boron nitride: carbon (BN:C) have been studied in films prepared by reactive r.f. diode sputter deposition as well as by reactive unbalanced d.c. LÄS MER
7. Influence of defects and impurities on the properties of 2D materials
Sammanfattning : Graphene, the thinnest material with a stable 2D structure, is a potential alternative for silicon-based electronics. However, zero band gap of graphene causes a poor on-off ratio of current thus making it unsuitable for logic operations. This problem prompted scientists to find other suitable 2D materials. LÄS MER
8. Chemical Vapour Deposition of sp2 Hybridised Boron Nitride
Sammanfattning : The aim of this work was to develop a chemical vapour deposition process and understand the growth of sp2 hybridised Boron Nitride (sp2-BN). Thus, the growth on different substrates together with the variation of growth parameters was investigated in details and is presented in the papers included in this thesis. LÄS MER
9. First Principles Studies of Functional Materials Based on Graphene and Organometallics
Sammanfattning : Graphene is foreseen to be the basis of future electronics owing to its ultra thin structure, extremely high charge carrier mobility, high thermal conductivity etc., which are expected to overcome the size limitation and heat dissipation problem in silicon based transistors. LÄS MER
10. The Effect of Boron in Metal Borides and BN – A Theoretical Approach
Sammanfattning : Boron, B, has many interesting electronic and structural properties, which makes it an ideal material for technical and industrial needs. The different binary materials that have been in focus in the present thesis, do all include B; metal diborides (MB2), cubic boron nitride (c-BN) forming an interface with diamond, and various phases of BN [cubic (c-BN), hexagonal (h-BN), wurtzitic (w-BN), and rhombohedral (r-BN)]. LÄS MER