Electronic structure of Alq3 and Liq using soft X-ray spectroscopy and density functional theory calculation

Yoo Kyung Park, Bo Kyung Ryu, Juhyeok Kim, Soryeong Yeo, Chang Suk Oh, Sang Wan Cho, Hyunbok Lee, Hirohito Ogasawara

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The electronic structure of aluminum tris-8-hydroxyquinoline (Alq3) and 8-hydroquinolatolithium (Liq) was investigated using a combination of X-ray emission spectroscopy (XES), X-ray absorption spectroscopy (XAS), X-ray photoelectron spectroscopy (XPS), and spectral simulation with density functional theory. The chemical bonding states of Alq3 and Liq were analyzed using XPS core-level spectra. The band gaps of Alq3 and Liq were measured by combining the XAS and XES results. Additionally, resonant and non-resonant XES were used to measure the density of states for O sites in the molecules.

Original languageEnglish
Pages (from-to)91-95
Number of pages5
JournalCurrent Applied Physics
Volume30
DOIs
Publication statusPublished - 2021 Oct

Bibliographical note

Publisher Copyright:
© 2021 Korean Physical Society

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • General Physics and Astronomy

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