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Title: Diffusivity of the interstitial hydrogen shallow donor in In 2O 3

Abstract

Hydrogen has been found to be an n-type dopant in In 2O 3 that gives rise to unintentional conductivity. An infrared (IR) absorption line observed at 3306 cm –1 has been assigned to the H i + center. In this work, two types of experiments have been performed to determine the diffusivity of H i + in In 2O 3 from its IR absorption spectra. (i) At temperatures near 700 K, the O-H line at 3306 cm –1 has been used to determine the diffusivity of H i + from its in-diffusion and out-diffusion behaviors. (ii) At temperatures near 160 K, stress has been used to produce a preferential alignment of the H i + center that has been detected in IR absorption experiments made with polarized light. With the help of theory, the kinetics with which a stress-induced alignment can be produced yield the time constant for a single jump of the H i + center and also the diffusivity of H i + near 160 K. The combination of the diffusivity of H i + found near 700 K by mass-transport measurements and that found near 160 K from the time constant for a single H i +more » jump determines the diffusivity for H i + over eleven decades!« less

Authors:
ORCiD logo [1];  [1];  [1]; ORCiD logo [1];  [1];  [1]; ORCiD logo [2]
  1. Lehigh Univ., Bethlehem, PA (United States). Dept. of Physics
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science & Technology Division
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
OSTI Identifier:
1399982
Alternate Identifier(s):
OSTI ID: 1398294
Grant/Contract Number:  
[AC05-00OR22725; DMR 1160756]
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Applied Physics
Additional Journal Information:
[ Journal Volume: 123; Journal Issue: 16]; Journal ID: ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Qin, Ying, Weiser, Philip, Villalta, Karla, Stavola, Michael, Fowler, W. Beall, Biaggio, Ivan, and Boatner, Lynn. Diffusivity of the interstitial hydrogen shallow donor in In2O3. United States: N. p., 2017. Web. doi:10.1063/1.4995593.
Qin, Ying, Weiser, Philip, Villalta, Karla, Stavola, Michael, Fowler, W. Beall, Biaggio, Ivan, & Boatner, Lynn. Diffusivity of the interstitial hydrogen shallow donor in In2O3. United States. doi:10.1063/1.4995593.
Qin, Ying, Weiser, Philip, Villalta, Karla, Stavola, Michael, Fowler, W. Beall, Biaggio, Ivan, and Boatner, Lynn. Fri . "Diffusivity of the interstitial hydrogen shallow donor in In2O3". United States. doi:10.1063/1.4995593. https://www.osti.gov/servlets/purl/1399982.
@article{osti_1399982,
title = {Diffusivity of the interstitial hydrogen shallow donor in In2O3},
author = {Qin, Ying and Weiser, Philip and Villalta, Karla and Stavola, Michael and Fowler, W. Beall and Biaggio, Ivan and Boatner, Lynn},
abstractNote = {Hydrogen has been found to be an n-type dopant in In2O3 that gives rise to unintentional conductivity. An infrared (IR) absorption line observed at 3306 cm–1 has been assigned to the Hi+ center. In this work, two types of experiments have been performed to determine the diffusivity of Hi+ in In2O3 from its IR absorption spectra. (i) At temperatures near 700 K, the O-H line at 3306 cm–1 has been used to determine the diffusivity of Hi+ from its in-diffusion and out-diffusion behaviors. (ii) At temperatures near 160 K, stress has been used to produce a preferential alignment of the Hi+ center that has been detected in IR absorption experiments made with polarized light. With the help of theory, the kinetics with which a stress-induced alignment can be produced yield the time constant for a single jump of the Hi+ center and also the diffusivity of Hi+ near 160 K. The combination of the diffusivity of Hi+ found near 700 K by mass-transport measurements and that found near 160 K from the time constant for a single Hi+ jump determines the diffusivity for Hi+ over eleven decades!},
doi = {10.1063/1.4995593},
journal = {Journal of Applied Physics},
number = [16],
volume = [123],
place = {United States},
year = {2017},
month = {10}
}

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