scholarly journals Angle-Resolved Photoemission Study on the Band Structure of Organic Single Crystals

Crystals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 773
Author(s):  
Ke Wang ◽  
Ben Ecker ◽  
Yongli Gao
Keyword(s):  
Band Structure ◽  
Single Crystals ◽  
Organic Semiconductors ◽  
Electronic Band Structure ◽  
Inorganic Materials ◽  
Strong Electron ◽  
Electronic Band ◽  
Valence Bands ◽  
Energy And Momentum ◽  
Photoemission Study

Angle-resolved photoemission spectroscopy (ARPES) is a vital technique, collecting data from both the energy and momentum of photoemitted electrons, and is indispensable for investigating the electronic band structure of solids. This article provides a review on ARPES studies of the electronic band structure of organic single crystals, including organic charge transfer conductors; organic semiconductors; and organo-metallic perovskites. In organic conductors and semiconductors, band dispersions are observed that are highly anisotropic. The Van der Waals crystal nature, the weak electron wavefunction overlap, as well as the strong electron-phonon coupling result in many organic crystals having indiscernible dispersion. In comparison, organo-metallic perovskite halides are characterized by strong s-p orbitals from the metal and halide at the top of the valence bands, with dispersions similar to those in inorganic materials.

Electronic band structure of gallium nitride: a comparative angle-resolved photoemission study of single crystals and thin films

2002 ◽  
Vol 507-510 ◽  
pp. 223-228 ◽  
Author(s):  
L. Plucinski ◽  
T. Strasser ◽  
B.J. Kowalski ◽  
K. Rossnagel ◽  
T. Boetcher ◽  
...  
Keyword(s):  
Thin Films ◽  
Gallium Nitride ◽  
Band Structure ◽  
Single Crystals ◽  
Electronic Band Structure ◽  
Electronic Band ◽  
Photoemission Study

scholarly journals Photoelectron spectroscopy on single crystals of organic semiconductors: experimental electronic band structure for optoelectronic properties

2020 ◽  
Vol 8 (27) ◽  
pp. 9090-9132 ◽  
Author(s):  
Yasuo Nakayama ◽  
Satoshi Kera ◽  
Nobuo Ueno
Keyword(s):  
Band Structure ◽  
Single Crystals ◽  
Organic Semiconductors ◽  
Organic Semiconductor ◽  
Photoelectron Spectroscopy ◽  
Electronic Band Structure ◽  
Band Structures ◽  
Electronic Band ◽  
Hybrid Perovskite ◽  
Electronic Band Structures

Methodologies and experimental achievements for exploration into electronic band structures of organic semiconductor and hybrid perovskite single crystals are reviewed.

Angle-resolved photoemission study of the electronic band structure of the ZrC(100) surface

1987 ◽  
Vol 36 (9) ◽  
pp. 4681-4691 ◽  
Author(s):  
P. A. P. Lindberg ◽  
P. L. Wincott ◽  
L. I. Johansson ◽  
A. N. Christensen
Keyword(s):  
Band Structure ◽  
Electronic Band Structure ◽  
Electronic Band ◽  
Photoemission Study

High Resolution Optical Spectroscopy of Free Exciton and Electronic Band Structure near the Fundamental Gap in 4H SiC

2018 ◽  
Vol 924 ◽  
pp. 239-244 ◽  
Author(s):  
Walter M. Klahold ◽  
Wolfgang J. Choyke ◽  
Robert P. Devaty
Keyword(s):  
Absorption Spectrum ◽  
Band Structure ◽  
Density Functional ◽  
Electronic Band Structure ◽  
Free Exciton ◽  
Electron Mass ◽  
Electronic Band ◽  
Wavelength Resolution ◽  
Primary Origin ◽  
Valence Bands

We use thick, relatively high purity 4H SiC boule material to measure the wavelength modulated absorption spectrum with improved wavelength resolution and sensitivity with respect to previous work. We observe several small 0.6 ± 0.1 meV splittings, which we attribute to electron mass anisotropy and electron-hole exchange interaction. In addition, we identify several features in the absorption spectrum as signatures of nonparabolicity in the free exciton dispersion relations, the primary origin of which is likely the nonparabolic energy dispersion of the valence bands, as revealed by published band structure calculations based on density functional theory.

scholarly journals Revealing the electronic band structure of trilayer graphene on SiC: An angle-resolved photoemission study

2013 ◽  
Vol 88 (15) ◽  
Author(s):  
C. Coletti ◽  
S. Forti ◽  
A. Principi ◽  
K. V. Emtsev ◽  
A. A. Zakharov ◽  
...  
Keyword(s):  
Band Structure ◽  
Electronic Band Structure ◽  
Electronic Band ◽  
Photoemission Study ◽  
Trilayer Graphene

Angle-resolved photoemission study of the electronic band structure of VC(100)

1987 ◽  
Vol 192 (2-3) ◽  
pp. 353-365 ◽  
Author(s):  
P.A.P. Lindberg ◽  
L.I. Johansson ◽  
A.N. Christensen
Keyword(s):  
Band Structure ◽  
Electronic Band Structure ◽  
Electronic Band ◽  
Photoemission Study
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