Abstract
The ultraviolet photoelectron spectra measurements for 1st and 2nd stage potassium-oxygen-graphite intercalation compounds (KO x-GICs) were carried out for the electronic structure around the Fermi level E F. The dependence of the photoelectron spectra upon the incident photon energy suggests the presence of the oxygen electronic states around E F. The temperature dependence of the thermoelectric power (TEP) of KO x-GICs reveals the positive TEP below around 150 K for 1st stage compound, which suggests the contribution of hole carriers to the transport properties in contrast to the expectation of negative TEP endorsed by the donor type character of KO x-GICs. These experimental findings prove the contribution of intercalate to the electronic structure and transport properties.
| Original language | English |
|---|---|
| Pages (from-to) | 243-248 |
| Number of pages | 6 |
| Journal | Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals |
| Volume | 310 |
| Publication status | Published - 1998 |
| Externally published | Yes |
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Keywords
- Electronic structure
- Graphite intercalation compounds
- Photoelectron spectra
- Thermoelectric power
ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
The contribution of intercalate to the electronic structure and transport properties for potassium-oxygen-graphite intercalation compounds. / Yamashita, Tetsuo; Enoki, Toshiaki; Miyamae, Takayuki; Miyazaki, Takafumi.
In: Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, Vol. 310, 1998, p. 243-248.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The contribution of intercalate to the electronic structure and transport properties for potassium-oxygen-graphite intercalation compounds
AU - Yamashita, Tetsuo
AU - Enoki, Toshiaki
AU - Miyamae, Takayuki
AU - Miyazaki, Takafumi
PY - 1998
Y1 - 1998
N2 - The ultraviolet photoelectron spectra measurements for 1st and 2nd stage potassium-oxygen-graphite intercalation compounds (KO x-GICs) were carried out for the electronic structure around the Fermi level E F. The dependence of the photoelectron spectra upon the incident photon energy suggests the presence of the oxygen electronic states around E F. The temperature dependence of the thermoelectric power (TEP) of KO x-GICs reveals the positive TEP below around 150 K for 1st stage compound, which suggests the contribution of hole carriers to the transport properties in contrast to the expectation of negative TEP endorsed by the donor type character of KO x-GICs. These experimental findings prove the contribution of intercalate to the electronic structure and transport properties.
AB - The ultraviolet photoelectron spectra measurements for 1st and 2nd stage potassium-oxygen-graphite intercalation compounds (KO x-GICs) were carried out for the electronic structure around the Fermi level E F. The dependence of the photoelectron spectra upon the incident photon energy suggests the presence of the oxygen electronic states around E F. The temperature dependence of the thermoelectric power (TEP) of KO x-GICs reveals the positive TEP below around 150 K for 1st stage compound, which suggests the contribution of hole carriers to the transport properties in contrast to the expectation of negative TEP endorsed by the donor type character of KO x-GICs. These experimental findings prove the contribution of intercalate to the electronic structure and transport properties.
KW - Electronic structure
KW - Graphite intercalation compounds
KW - Photoelectron spectra
KW - Thermoelectric power
UR - http://www.scopus.com/inward/record.url?scp=0031640320&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0031640320&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0031640320
VL - 310
SP - 243
EP - 248
JO - Molecular Crystals and Liquid Crystals
JF - Molecular Crystals and Liquid Crystals
SN - 1542-1406
ER -