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

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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.

Original languageEnglish
Article number042110
JournalApplied Physics Letters
Volume104
Issue number4
DOIs
Publication statusPublished - Jan 27 2014
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Watanabe, K., Hashiguchi, M., Sakaguchi, I., Bryant, A., Adachi, Y., Zhen, Y., ... Ohashi, N. (2014). Hydrogen in tin dioxide films and bulk ceramics: An attempt to identify the most hidden impurity. Applied Physics Letters, 104(4), [042110]. https://doi.org/10.1063/1.4863668