TY - JOUR
T1 - Carrier generation and inherent off-stoichiometry in Zn, Sn codoped indium oxide (ZITO) bulk and thin-film specimens
AU - Harvey, Steven P.
AU - Mason, Thomas O.
AU - Buchholz, D. Bruce
AU - Chang, Robert P.H.
AU - Körber, Christoph
AU - Klein, Andreas
PY - 2008/2
Y1 - 2008/2
N2 - Electrical studies of the Zn, Sn codoped bixbyite (In2O 3) phase (ZITO), a promising alternative to indium-tin oxide (ITO) for transparent conductor applications, indicate that an inherent cation off-stoichiometry in favor of Sn donors versus Zn acceptors dominates the defect chemistry of this important transparent conducting oxide. This was shown by bulk phase diagram and conductivity studies, thin-film electrical/optical measurements, and photoelectron spectroscopy on both bulk and thin-film specimens. The Sn-excess character explains the persistent n-type behavior of bulk ZITO, the relative redox insensitivity of codoped compositions, the existence of "special" (optimized conductivity) compositions in phase space for pulsed laser-deposited films, and the propensity for surface chemical depletion in both bulk and thin-film specimens.
AB - Electrical studies of the Zn, Sn codoped bixbyite (In2O 3) phase (ZITO), a promising alternative to indium-tin oxide (ITO) for transparent conductor applications, indicate that an inherent cation off-stoichiometry in favor of Sn donors versus Zn acceptors dominates the defect chemistry of this important transparent conducting oxide. This was shown by bulk phase diagram and conductivity studies, thin-film electrical/optical measurements, and photoelectron spectroscopy on both bulk and thin-film specimens. The Sn-excess character explains the persistent n-type behavior of bulk ZITO, the relative redox insensitivity of codoped compositions, the existence of "special" (optimized conductivity) compositions in phase space for pulsed laser-deposited films, and the propensity for surface chemical depletion in both bulk and thin-film specimens.
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U2 - 10.1111/j.1551-2916.2007.02135.x
DO - 10.1111/j.1551-2916.2007.02135.x
M3 - Article
AN - SCOPUS:38949184013
SN - 0002-7820
VL - 91
SP - 467
EP - 472
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
IS - 2
ER -