Hydrogen in tin dioxide films and bulk ceramics: An attempt to identify the most hidden impurity

Ken Watanabe; Minako Hashiguchi; Isao Sakaguchi; Alex Bryant; Yutaka Adachi; Yuhua Zhen; Takeshi Ohgaki; Takeo Ohsawa; Hajime Haneda; Naoki Ohashi

doi:10.1063/1.4863668

Hydrogen in tin dioxide films and bulk ceramics: An attempt to identify the most hidden impurity

Ken Watanabe, Minako Hashiguchi, Isao Sakaguchi, Alex Bryant, Yutaka Adachi, Yuhua Zhen, Takeshi Ohgaki, Takeo Ohsawa, Hajime Haneda, Naoki Ohashi

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

Hydrogen impurities in SnO₂ films and bulk ceramics were investigated in terms of mass transport and electron transport. The hydrogen concentration (n[H]) in these samples was found to be 10¹⁹ cm^-3 or higher. Further increase in n[H] could be achieved by annealing the samples in a humid atmosphere. The isotope tracer (¹H/²H exchange) study revealed that a part of the hydrogen in these samples showed rapid migration even at 300 °C. However, electrical measurements revealed that the electron concentration in the samples was much less than n[H]. These results could be explained by assuming the presence of defect-hydrogen complexes.

Original language	English
Article number	042110
Journal	Applied Physics Letters
Volume	104
Issue number	4
DOIs	https://doi.org/10.1063/1.4863668
Publication status	Published - Jan 27 2014
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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abstract = "Hydrogen impurities in SnO2 films and bulk ceramics were investigated in terms of mass transport and electron transport. The hydrogen concentration (n[H]) in these samples was found to be 1019 cm-3 or higher. Further increase in n[H] could be achieved by annealing the samples in a humid atmosphere. The isotope tracer (1H/2H exchange) study revealed that a part of the hydrogen in these samples showed rapid migration even at 300 °C. However, electrical measurements revealed that the electron concentration in the samples was much less than n[H]. These results could be explained by assuming the presence of defect-hydrogen complexes.",

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T2 - An attempt to identify the most hidden impurity

AU - Watanabe, Ken

AU - Hashiguchi, Minako

AU - Sakaguchi, Isao

AU - Bryant, Alex

AU - Adachi, Yutaka

AU - Zhen, Yuhua

AU - Ohgaki, Takeshi

AU - Ohsawa, Takeo

AU - Haneda, Hajime

AU - Ohashi, Naoki

PY - 2014/1/27

Y1 - 2014/1/27

N2 - Hydrogen impurities in SnO2 films and bulk ceramics were investigated in terms of mass transport and electron transport. The hydrogen concentration (n[H]) in these samples was found to be 1019 cm-3 or higher. Further increase in n[H] could be achieved by annealing the samples in a humid atmosphere. The isotope tracer (1H/2H exchange) study revealed that a part of the hydrogen in these samples showed rapid migration even at 300 °C. However, electrical measurements revealed that the electron concentration in the samples was much less than n[H]. These results could be explained by assuming the presence of defect-hydrogen complexes.

AB - Hydrogen impurities in SnO2 films and bulk ceramics were investigated in terms of mass transport and electron transport. The hydrogen concentration (n[H]) in these samples was found to be 1019 cm-3 or higher. Further increase in n[H] could be achieved by annealing the samples in a humid atmosphere. The isotope tracer (1H/2H exchange) study revealed that a part of the hydrogen in these samples showed rapid migration even at 300 °C. However, electrical measurements revealed that the electron concentration in the samples was much less than n[H]. These results could be explained by assuming the presence of defect-hydrogen complexes.

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Hydrogen in tin dioxide films and bulk ceramics: An attempt to identify the most hidden impurity

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