Global ETD Search
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 70 for “"electronic transitions"”.
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Electronic Transitions and Intramolecular Rearrangement Under High Pressure
Made available in DSpace on 2014-12-10T21:24:51Z (GMT). No. of bitstreams: 1 7405728.pdf: 3613089 bytes, checksum: ea7719b1cc3a806da93f4a3e19a2eeb7 (MD5) Previous issue date: 1973
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The Effect of Pressure on Internal Electronic Transitions
Made available in DSpace on 2014-12-05T17:15:33Z (GMT). No. of bitstreams: 1 6003939.pdf: 4207085 bytes, checksum: 840e15208d36d0f7bf00fe6c47243e37 (MD5) Previous issue date: 1960
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Optically active phonons and electronic transitions in rare-earth tri-fluorides.
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Physics, 1970
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Intensity Mechanism and Assignments in Electronic Transitions of Copper and Vanadyl Chelates
Made available in DSpace on 2014-12-09T17:35:11Z (GMT). No. of bitstreams: 1 6503704.pdf: 3222557 bytes, checksum: 703b8e9e25a7c4881afb548441730152 (MD5) Previous issue date: 1964
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Modeling and Simulation of Radiation from Electronic Transitions in Hypersonic Atmospheric Reentry Flow
… interest. The spectral data required as inputs – electronic transition rates, energies, and wavelengths – for atomic nitrogen, oxygen, and hydrogen are obtained from a database maintained by NIST. Vibrational and rotational transitions of diatomic molecules are not addressed here. Absorption and …
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Contribución al estudio teórico de la influencia del disolvente sobre transiciones electrónicas y estados excitados en disolución empleando el método ASEP/MD
… calculate free energy differences related with electronic transitions and crossing points between potential energy surfaces in condensed phase were developed.
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Control of Light-Matter Interactions via Nanostructured Photonic Materials
… of material systems to fundamentally alter the electronic properties of the material and thus significantly change its optical response. This is accomplished via the strain engineering of the electronic bands in the hexagonal Boron Nitride. This allows electronic transitions deep within the …
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An Investigative Study of Surface Interaction and Reaction on (2X1)platinum(110)
… using both EELS and UV/HREELS shows that electronic transitions are shifted compared to those of gas phase. Careful analysis reveals that these shifts are caused by sigma-donation and pi-back donation between CO and the surface, confirming the Blyholder model, which has been a topic of …
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Thermal and Optical Properties of Oxide Coatings for High-Temperature Applications
… with cations that absorb thermal radiation by electronic transitions. Recent work on an ultrafast high temperature sintering (UHS) technique has also been demonstrated to accelerate the development of coatings for environmental-thermal barrier coating (ETBC) applications. Rare-earth cations …
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Alignment and characterization of carbon nanotubes of photolithographically patterned electrodes
… the diameter distribution and the energy of the electronic transitions of the resonant suspended SWNTs obtained from Raman spectroscopy is compared to other published works to make (n,m) assignments of a number of suspended SWNTs.
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Optical absorption of bismuth silicon oxide (Bi₁₂SiO₂₀) crystals
… using the Bridgman technique and to identify electronic transitions responsible for absorption. Optical measurements were taken in the range of 0.4 - 11 pm at 300 K and 77 K using a spectrometer. The results show that near the band edge, there is evidence of indirect transitions at 2.3 eV and …
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ΚΒΑΝΤΟΧΗΜΙΚΗ ΚΑΙ ΠΕΙΡΑΜΑΤΙΚΗ ΜΕΛΕΤΗ ΤΗΣ ΔΟΜΗΣ ΚΑΙ ΤΩΝ ΦΑΙΝΟΜΕΝΩΝ ΥΠΕΡΑΝΤΑΛΛΑΓΗΣΔΙΚΕΝΤΡΙΚΩΝ D9:D9 ΜΑΓΝΗΤΙΚΩΝ ΣΥΣΤΗΜΑΤΩΝ ΜΕ ΓΕΦΥΡΕΣ ΕΚΤΕΤΑΜ...
… DITHIOTEREPHTHALATE MODELS (WHERE THE CALCULATED ELECTRONIC TRANSITIONS AGREE WITH THE OBSERVED ONES), BUT FOROTHER CU(II) DIMER COMPOUNDS AS WELL. BASED ON SUCH QUANTUM CHEMICAL RESULTS, A TENDENCY FOR STRONGER ANTIFERROMAGNETIC COUPLING IS PREDICTED AS THE BRIDGINGLIGAND (DITHIOFUMARIC ACID, …
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Οπτικές ιδιότητες του αραιού μαγνητικού ημιαγωγού Ζn₁₋ₓΜnₓS
… the lattice properties have been related to the electronic transitions and the parameters of the model have been induced. It was demonstrated that the optical transitions are coupled only to the impurity induced modes.
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Inducing Chirality in CdS Nanocrystals with Biomolecules
… of materials with potential applications in optoelectronics, bioimaging, and sensing. Among the strategies for generating chiral CdE NCs, which include 1) chiral molecule templated nucleation and growth, 2) assembly of CdE NCs into chiral arrangements, and 3) chiral ligand exchange on the surface …
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Synthesis and Computational Studies of a New Class of Lanthanide Niobate Cluster : [Ln<sub>4</sub>(H<sub>2</sub>O)<sub>8</sub>(SO<sub>4</sub>)<sub>5</sub>(NbO<sub>3</sub>)<sub>2</sub>]+3H<sub>2</sub>O; Ln= Dy, Tb
… clusters have applications in green energy and electronics. However, the high charge environment of PONbs typically requires alkaline synthetic conditions that are unsuitable for introducing other metals and organic molecules, making synthesis of new systems difficult. To date, very few …
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Spectroscopy of small scale magnetic structures in the solar photosphere
… spectral range at 430nm that <br>is dominated by electronic transitions of the CH-molecule) at a <br>sufficiently high resolution, the presence of the so-called G-band <br>bright points is revealed. <br>They are interpreted as small-scale magnetic field <br>concentrations that are embedded in the …
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Pressure Tuning of the Electronic Spectra of Quasi-One-Dimensional Mixed Valence Semiconductors
The effects of high pressure on the electronic spectra of the mixed valence semiconductors, K$\sb4$(Pt$\sb2$(P$\sb2$O$\sb5$H$\sb2)\sb4$X) $\cdot$3H$\sb2$O; X = Cl, Br were investigated to 10.0 GPa. Their electronic spectra consist of transitions seen in the reduced salt, …
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Using 2D vortex plasmons/phonon polaritons to control electronic selection rules
… can be used to engineer new selection rules in electronic transitions. Moreover, we show that these selection rules are robust to the displacement of the electronic system away from the vortex center. Perhaps more surprisingly, we find how displacement can be used favourably to tune which …
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The thermal conductivity of double nitrate crystals below 1 K
… scattering of phonons by these ions due to electronic transitions between the magnetic hyperfine levels. The splitting, in zero external magnetic field, between the hyperfine levels in the Pr+3 ion inCMN is 0.048 K. This splitting in the Ho+3 ion inLMN is estimated to be on the order of or …
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