Anion photoelectron spectroscopy of acenes

Abstract: To study the electronic properties of polyacenes, which have semiconducting properties by anion photoelectron spectroscopy technique, fi rst, a new molecular cluster source was designed and constructed. The main part of this source is a high-temperature pulsed valve with a higher operating temperature in comparison to the commercially available valves. The proper operation of the constructed cluster source was tested by the generation of anionic clusters of anthracene and tetracene that are the smallest linear polyacenes. Then, the electronic properties and dynamics in anthracene, tetracene, and pentacene monomers were investigated by performing anion photoelectron spectroscopy. The frequency-resolved photoelectron spectroscopy carried out on anthracene anion revealed different electronic states and vibrational activities in the anthracene molecule, and also, different resonances in the anthracene anion were identi ed by these measurements. In addition, by single photoelectron spectroscopy of tetracene and pentacene anions with the laser wavelength of 308 nm, the ground and lower-lying electronic excited states of these molecules were studied. In the end, a project has been conducted to stabilize the sample position in condensed matter photoelectron spectroscopy in a collaboration with the University of British Columbia in Vancouver to study the organic semiconductors in the bulk state

Angaben zum Objekt

• Standort: Deutsche Nationalbibliothek Frankfurt am Main
• Umfang: Online-Ressource
• Sprache: Englisch
• Anmerkungen: Universität Freiburg, Dissertation, 2021

Klassifikation und Themen

• Schlagwort: Quantenchemie ; Molekül ; Chemische Bindung

Beteiligte, Orts- und Zeitangaben

• Ereignis: Veröffentlichung
• (wo): Freiburg
• (wer): Universität
• (wann): 2021
• Urheber: Jalehdoost, Aghigh
• Beteiligte Personen und Organisationen: Issendorff, Bernd von ; Albert-Ludwigs-Universität Freiburg. Fakultät für Mathematik und Physik

Weitere Informationen

• DOI: 10.6094/UNIFR/222380
• URN: urn:nbn:de:bsz:25-freidok-2223806
• Rechteinformation: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Letzte Aktualisierung: 25.03.2025, 13:43 MEZ