Charge transport mechanism in amorphous alumina
The charge transport mechanism in amorphous Al 2 O 3 was examined both experimentally and theoretically. We have found that electrons are dominant charge carriers in Al 2 O 3 . A satisfactory agreement between the experimental and calculated data was obtained assuming the multiphonon ionization mech...
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| Veröffentlicht in: | Applied physics letters 2009-06, Vol.94 (22), p.222904-222904-3 |
|---|---|
| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | The charge transport mechanism in amorphous
Al
2
O
3
was examined both experimentally and theoretically. We have found that electrons are dominant charge carriers in
Al
2
O
3
. A satisfactory agreement between the experimental and calculated data was obtained assuming the multiphonon ionization mechanism for deep traps in
Al
2
O
3
. For the thermal and optical trap ionization energies in
Al
2
O
3
, the values
W
T
=
1.5
eV
and
W
opt
=
3.0
eV
were obtained. |
|---|---|
| ISSN: | 0003-6951 1077-3118 |
| DOI: | 10.1063/1.3151861 |