Abstract
Zn1−x Mg x O films were deposited on single crystal Si (100) substrates using ultrasonic spray pyrolysis under ambient atmosphere. A strong ultraviolet near-band-edge (NBE) emission was observed in the room temperature photoluminescence (PL) measurement for all the as-grown Zn1−x Mg x O films, while the deep-level emission was almost undetectable, suggesting that the obtained Zn1−x Mg x O-based films are well close to stoichiometry and of optically high quality. A distinct blue-shift of NBE emission peak from 386 nm to 358 nm was observed as the Mg concentration increases from 0% to 25 %. The photoluminescence spectra as a function of temperature were also investigated to examine the emission mechanism of Zn1−x Mg x O films.
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This work was supported by the National Nature Science Foundation of China under the Grant No. 50532080 (No. 60576054), and 2005 Excellence Youth Teacher Cultivation Fund of Dalian University of Technology.
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Bian, J., Luo, Y., Sun, J. et al. Synthesis and temperature dependent photoluminescence of Zn1−x Mg x O films grown by ultrasonic spray pyrolysis. J Mater Sci 42, 8461–8464 (2007). https://doi.org/10.1007/s10853-007-1770-z
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DOI: https://doi.org/10.1007/s10853-007-1770-z