Abstract
The electronic structure of protonic conductor SrZr1-xM xO3-δ (M = Y3+, Sc3+) has been studied by soft-X-ray spectroscopy. The valence band is mainly composed of O 2p state. The conduction band is composed of Zr 4d state. The holes and the acceptor level are observed at the top of valence band and just above the Fermi level (EF), respectively. In H2-annealed SrZr 1-xMxO3-δ (M = Y3+, Sc 3+), their intensities decrease and the hydrogen-induced level is created at just below EF. The energy separation between the bottom of the hydrogen-induced level and the top of valence band agrees with the activation energy estimated from the electrical conductivity.
| Original language | English |
|---|---|
| Pages (from-to) | 2435-2438 |
| Number of pages | 4 |
| Journal | Solid State Ionics |
| Volume | 176 |
| Issue number | 31-34 |
| DOIs | |
| Publication status | Published - Oct 1 2005 |
| Externally published | Yes |
| Event | 30th Symposium on Solid State Ionics in Japan - Duration: Dec 1 2004 → Dec 3 2004 |
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All Science Journal Classification (ASJC) codes
- Electrochemistry
- Physical and Theoretical Chemistry
- Energy Engineering and Power Technology
- Materials Chemistry
- Condensed Matter Physics
Cite this
Electronic structure of protonic conductor SrZr0.90M 0.10O3 (M = Y3+, Sc3+) probed by soft-X-ray spectroscopy. / Higuchi, T.; Tsukamoto, T.; Matsumoto, Hiroshige; Shimura, T.; Yashiro, K.; Kawada, T.; Mizusaki, J.; Shin, S.; Hattori, T.
In: Solid State Ionics, Vol. 176, No. 31-34, 01.10.2005, p. 2435-2438.Research output: Contribution to journal › Conference article
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TY - JOUR
T1 - Electronic structure of protonic conductor SrZr0.90M 0.10O3 (M = Y3+, Sc3+) probed by soft-X-ray spectroscopy
AU - Higuchi, T.
AU - Tsukamoto, T.
AU - Matsumoto, Hiroshige
AU - Shimura, T.
AU - Yashiro, K.
AU - Kawada, T.
AU - Mizusaki, J.
AU - Shin, S.
AU - Hattori, T.
PY - 2005/10/1
Y1 - 2005/10/1
N2 - The electronic structure of protonic conductor SrZr1-xM xO3-δ (M = Y3+, Sc3+) has been studied by soft-X-ray spectroscopy. The valence band is mainly composed of O 2p state. The conduction band is composed of Zr 4d state. The holes and the acceptor level are observed at the top of valence band and just above the Fermi level (EF), respectively. In H2-annealed SrZr 1-xMxO3-δ (M = Y3+, Sc 3+), their intensities decrease and the hydrogen-induced level is created at just below EF. The energy separation between the bottom of the hydrogen-induced level and the top of valence band agrees with the activation energy estimated from the electrical conductivity.
AB - The electronic structure of protonic conductor SrZr1-xM xO3-δ (M = Y3+, Sc3+) has been studied by soft-X-ray spectroscopy. The valence band is mainly composed of O 2p state. The conduction band is composed of Zr 4d state. The holes and the acceptor level are observed at the top of valence band and just above the Fermi level (EF), respectively. In H2-annealed SrZr 1-xMxO3-δ (M = Y3+, Sc 3+), their intensities decrease and the hydrogen-induced level is created at just below EF. The energy separation between the bottom of the hydrogen-induced level and the top of valence band agrees with the activation energy estimated from the electrical conductivity.
UR - http://www.scopus.com/inward/record.url?scp=25644460415&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=25644460415&partnerID=8YFLogxK
U2 - 10.1016/j.ssi.2005.06.030
DO - 10.1016/j.ssi.2005.06.030
M3 - Conference article
AN - SCOPUS:25644460415
VL - 176
SP - 2435
EP - 2438
JO - Solid State Ionics
JF - Solid State Ionics
SN - 0167-2738
IS - 31-34
ER -