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NAP XPS study of In-Sn-As-I clathrate surface oxidation by molecular oxygenдоклад на конференции
- Авторы: Yashina LV, Belova AI, Kataev EYu, Shevelkov AV, Hävecker M., Knop-Gericke A., Pfeifer V.
- Международная Конференция : 6th Joint BER II and BESSY II User Meeting of HZB
- Даты проведения конференции: 2014
- Тип доклада: Стендовый
- Докладчик: Yashina LV
- Место проведения: Berlin
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Аннотация доклада:
We report the atomic mechanism of Sn-In-As-I thermoelectric clathrate oxidation by molecular oxygen probed by NAP XPS at different pressures and temperatures. By varying the oxygen pressure up to 0.1 mBar, we found that the oxidation process occurs in two steps, the rate of the first one is strongly dependent on the oxygen pressure. Room temperature oxidation does not lead to surface passivation.
- Добавил в систему: Яшина Лада Валерьевна