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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 62 for “"hBN"”.
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Evaluasi ketahanan beberapa galur kapas (Gossypium hirsutum L.) terhadap penggerek buah (Helicoverpa armigera Hbn.)
INDONESIA: Tanaman kapas umumnya sangat peka terhadap serangan serangga hama. Seperti halnya tanaman lain, tanaman kapas juga memiliki mekanisme pertahanan terhadap serangan hama, baik secara morfologi maupun biokimia. Ketahanan secara morfologis berpengaruh secara fisik terhadap serangga hama …
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Evaluation of Recurrent Selection in Breeding Corn Resistant to the European Corn Borer (Pyrausta Nubilalis (Hbn.))
Made available in DSpace on 2014-12-04T20:17:07Z (GMT). No. of bitstreams: 1 6104304.pdf: 2125611 bytes, checksum: 6b78d5b1ee7ab33a6e7043f3eaeb7fd0 (MD5) Previous issue date: 1961
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Epitaxial growth and characterization of hexagonal boron nitride for deep UV applications
… of late. Due to its wide bandgap (~ 6 eV), hBN has a significant potential for deep ultraviolet (DUV) photonic device applications. Additionally, the high neutron capture cross-section of the isotope boron-10 makes hBN a unique material for neutron detector applications. Its similar in-plane …
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Growth and characterization of high-quality bulk hexagonal boron nitride crystals
While hexagonal boron nitride (hBN) in polycrystalline form has met demand for its mechanical, chemical, and thermal applications, its new electronic, optoelectronic, and nanophotonic applications required single crystals with low residual impurity concentrations. Grain boundaries and impurities …
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Investigations of hexagonal boron nitride: bulk crystals and atomically-thin two dimensional layers
… more than fifty years. In the past few years, hBN has been targeted for potential electrical and optical devices such as neutron detectors, ultraviolet light emitters, deep ultraviolet light detectors, and substrates for graphene and other atomically-thin two-dimensional materials. All of these …
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Density functional theory investigations of graphene-based heterostructures
… metals (nickel, palladium), insulators (hBN) and semiconductors (MoS2). Our DFT calculations show that graphene layer on Ni(111) and Ni(110) becomes metallic owing to large binding energies and strong hybridization between nickel and carbon bands. Furthermore, in Gr/Gr/palladium systems, …
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Optimisation, Stabilisation, and Localisation of Quantum Emitters in Layer-Engineered Hexagonal Boron Nitride
For a long time, hexagonal boron nitride (hBN) has been considered the silent sister material of graphene, but recently an appreciation for it is starting to grow within the scientific community for the properties it possesses and not just its functionality as graphene’s supporting partner. The …
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Interface Engineering and Substrate Design for Anode-free Lithium Metal Batteries
… growth, monolayer hexagonal boron nitride (hBN) was introduced as an artificial SEI in lithium hexafluorophosphate (LiPF6)-based carbonate electrolytes. The hBN interfacial layer facilitates uniform lithium deposition and promotes the formation of a stable, inorganic-rich SEI. In addition, a …
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Superlattices and quantum spin Hall states in graphene and hexagonal boron nitride heterostructures
… such as graphene and hexagonal boron nitride (hBN), can be isolated separately and then stacked together to form heterostructures with crystalline interfaces between the layers. In this thesis, I present a series of experiments which explore the quantum transport of electrons in …
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Testing Soccer Cleats Designed to Reduce ACL Tears
… reduce the risk of these injuries. The company HBN shoes designed a soccer cleat aimed at reducing ACL tears by increasing the flexibility of the cleat around the metatarsophalangeal joint. The idea behind this is that increased flexibility at this joint will decrease landing flat-footed while …
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Probing interfacial electronic structure in quantum materials using stem cathodoluminescence spectral imaging
… Within this landscape, hexagonal boron nitride (hBN) is a promising host for QEs at room temperature. For superconductors, the two-dimensional electron gas formed between europium oxide (EuO) and potassium tantalate oxide (KTaO3, KTO) illustrates how interfacial chemistry and symmetry breaking …
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Mirror-Coupled Nanoantennas with Hexagonal-Boron Nitride Spacers
… light is trapped at the nanoscale inside the hBN, between particle and gold beneath. As the thickness of hBN is decreased, the coupling between nanoparticle and substrate changes dramatically. Here, the inert properties of hBN are used to remove extraneous influences on scattering spectra, …
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Proton Transfer Networks and the Mechanism of Long Range Proton Transfer in Proteins
… the reorientation of the hydrogen bond network (HBN)or the electrostatic barrier for the charge transfer is rate limiting. The main purpose of this work is to investigate the dynamics of chemical reactions inside of proteins, focused on long range proton transfer reactions. Electron transfer …
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Performance evaluation of biodegradable metalworking fluids for machining process
… MJOs were blended with hexagonal boron nitride (hBN) particles at various concentrations (0.05 to 0.5wt.%). MJOs with and without hBN particles were analysed based on the physicochemical properties, tribology behaviour test, orthogonal cutting and turning proses. From the results, MJO5 showed an …
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Control of Excitons and Quantum Emitters in Two-Dimensional Materials
… in an insulating hexagonal boron nitride (hBN) and semiconducting transition metal dichalcogenides (TMDs). In spite of the unique characteristics of these emitters, they suffer from large inhomogeneous distribution because of their proximity to the surface and external environment, limiting …
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Uniaxial Strain Effect on Graphene-Nanoribbon Resonant Tunneling Transistors
… materials. Hexagonal boron- nitride (hBN), is a great candidate to be stacked with graphene due to an atomically 2-D layered structure with a lattice constant very similar to graphene (1.8% mismatch), large electrical band gap (∼4.7eV), and excellent thermal and chemical stability. The …
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Quantum transport in gapped graphene
… transport properties in hexagonal boron nitride (hBN)/graphene superlattice Hall bars and graphene Hall bars proximity coupled to the ferrimagnetic insulator yttrium iron garnet ($\text{Y}_{3}\text{Fe}_{5}\text{O}_{12}$ or YIG). The first part describes in detail the pulse laser deposition of …
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Synthesis of bilayer graphene and hexagonal boron nitride by chemical vapor deposition method
… methods of synthesizing hexagonal boron nitride (hBN). The successful isolation of monolayer graphene in 2004 has attracted many researchers to search for potential applications of graphene and other two-dimensional materials in electronic and optical devices. However, the Scotch-tape method sets …
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Electron beam processing and spectroscopic characterisation of 2D materials and novel nanostructures
… phosphorus (BP) and hexagonal boron nitride (hBN) has exponentially risen due to the distinct advantages they possess over their bulk counterparts. Excellent and unique mechanical, electronic and optical properties have recently been discovered which can potentially span a large range of …
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