Read Soft X-ray emission and resonant inelastic scattering study of polycyclic hydrocarbons

Soft X-ray emission and resonant inelastic scattering study of polycyclic hydrocarbons

Ricardo Scherer

4.9/5 (16867 ratings)

Description:Doctoral Thesis / Dissertation from the year 2002 in the subject Physics - Experimental Physics, grade: 1, University of Cologne (2. Physikalisches Institut), language: English, abstract: This thesis comprises a detailed study of the electronic properties of the polycyclic hydrocarbons tetracene, perylene and coronene. The at room temperature grown organic layers consisted of a up to several hundred nanometer thickness, and have been studied with the experimental techniques soft x-ray emission spectroscopy (SXES) and NEXAFS-spectroscopy by means of synchrotron radiation. In particular, resonant inelastic scattering (RIXS) was employed in order to obtain possible band structure or MO-symmetry information of the studied systems. The studied materials consist of large organic molecules, evaporated under high vacuum on silicon wafers. The goal was to figure out, whether inside these organic layers the hydrocarbon molecules polymerize and form a band structure or if the hydrocarbon molecules do not interact with each other and retain their original molecular like symmetry and behavior. The discrete peaks in the hydrocarbon NEXAFS-spectra could be assigned by comparison with the literature to chemical shifted C1s→ π∗ transitions, caused by different chemical surrounded C-atoms. Hence, due to excitation on a certain π∗-resonance only C1s-electrons of equal C-atoms can be excited, which leads to a site selective excitation. The fluorescent decay of the created hole, which is as well localized on these former excited C-atoms was recorded energy dispersed in the SXE-spectrometer. This method is usually referred to as SXE. Therefore, the local MO-density was recorded. Hartree-Fock based ground state MO-calculations have been performed for each molecule, in order to simulate the SXE-spectra. Good agreement between experiment and simulation was shown, under the strict retainment of symmetry selection rules along the transitions. This result states, that the different hydrocaWe have made it easy for you to find a PDF Ebooks without any digging. And by having access to our ebooks online or by storing it on your computer, you have convenient answers with Soft X-ray emission and resonant inelastic scattering study of polycyclic hydrocarbons. To get started finding Soft X-ray emission and resonant inelastic scattering study of polycyclic hydrocarbons, you are right to find our website which has a comprehensive collection of manuals listed.
Our library is the biggest of these that have literally hundreds of thousands of different products represented.

Pages: 146

Format: PDF, EPUB & Kindle Edition

Publisher: Grin Verlag

Release: 2019

ISBN: 3346005453

Description: Doctoral Thesis / Dissertation from the year 2002 in the subject Physics - Experimental Physics, grade: 1, University of Cologne (2. Physikalisches Institut), language: English, abstract: This thesis comprises a detailed study of the electronic properties of the polycyclic hydrocarbons tetracene, perylene and coronene. The at room temperature grown organic layers consisted of a up to several hundred nanometer thickness, and have been studied with the experimental techniques soft x-ray emission spectroscopy (SXES) and NEXAFS-spectroscopy by means of synchrotron radiation. In particular, resonant inelastic scattering (RIXS) was employed in order to obtain possible band structure or MO-symmetry information of the studied systems. The studied materials consist of large organic molecules, evaporated under high vacuum on silicon wafers. The goal was to figure out, whether inside these organic layers the hydrocarbon molecules polymerize and form a band structure or if the hydrocarbon molecules do not interact with each other and retain their original molecular like symmetry and behavior. The discrete peaks in the hydrocarbon NEXAFS-spectra could be assigned by comparison with the literature to chemical shifted C1s→ π∗ transitions, caused by different chemical surrounded C-atoms. Hence, due to excitation on a certain π∗-resonance only C1s-electrons of equal C-atoms can be excited, which leads to a site selective excitation. The fluorescent decay of the created hole, which is as well localized on these former excited C-atoms was recorded energy dispersed in the SXE-spectrometer. This method is usually referred to as SXE. Therefore, the local MO-density was recorded. Hartree-Fock based ground state MO-calculations have been performed for each molecule, in order to simulate the SXE-spectra. Good agreement between experiment and simulation was shown, under the strict retainment of symmetry selection rules along the transitions. This result states, that the different hydrocaWe have made it easy for you to find a PDF Ebooks without any digging. And by having access to our ebooks online or by storing it on your computer, you have convenient answers with Soft X-ray emission and resonant inelastic scattering study of polycyclic hydrocarbons. To get started finding Soft X-ray emission and resonant inelastic scattering study of polycyclic hydrocarbons, you are right to find our website which has a comprehensive collection of manuals listed.
Our library is the biggest of these that have literally hundreds of thousands of different products represented.

Special Offer | $0.00

Special Offer! | $0.00

Soft X-ray emission and resonant inelastic scattering study of polycyclic hydrocarbons

Soft X-ray emission and resonant inelastic scattering study of polycyclic hydrocarbons

More Books

Unterrichtsplanungen Mathematik für das Berufskolleg (German Edition)

Unterrichtsplanungen Mathematik für das Berufskolleg (German Edition)

Selbstorganisiertes Lernen im offenen Mathematikunterricht (German Edition)

Selbstorganisiertes Lernen im offenen Mathematikunterricht (German Edition)

Terreno de Marinha: Domínio Marítimo Estadual: Águas Interiores Catarinenses (Terrenos de Marinha Livro 1) (Portuguese Edition)

Terreno de Marinha: Domínio Marítimo Estadual: Águas Interiores Catarinenses (Terrenos de Marinha Livro 1) (Portuguese Edition)

Physical and Mathematical Aspects of Symmetries

Physical and Mathematical Aspects of Symmetries

Physical and Mathematical Aspects of Symmetries: Proceedings of the 31st International Colloquium in Group Theoretical Methods in Physics

Physical and Mathematical Aspects of Symmetries: Proceedings of the 31st International Colloquium in Group Theoretical Methods in Physics