Abstract
The optical, structural, and electrical characteristics of ZnO films co-doped with Al and In elements are investigated. The films were prepared by spray pyrolysis with a permanent In content and Al concentrations of 0.5–3.5 at.%. The film structure was wurtzite and a transmittance of 89–90% was detected in the visible spectral range. By doping atoms with lower (Al) and larger (In) ion radii compared to Zn, residual stresses are reduced, allowing the self-compensating process to shift toward higher donor concentrations and achieve electrical resistivity of 3.0 × 10−3 Ω cm. Reasons for the non-monotonic changes of characteristics are discussed.
Graphical abstract
Data availability
The experimental results presented in this paper are available from the corresponding author upon reasonable request.
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The authors acknowledge the support of CONACYT Mexico (pt. 258224) and SIP-IPN, Mexico (pt. 20220210).
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Filali, B.E., Torchynska, T.V., Rodríguez, I.C.B. et al. Optical, structural, and electrical characteristics of ZnO films co-doped with Al and In elements for TCO applications. MRS Communications 12, 819–823 (2022). https://doi.org/10.1557/s43579-022-00245-x
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DOI: https://doi.org/10.1557/s43579-022-00245-x