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UV and ozone influence on the conductivity of ZnO thin films.
Gonçalves, Gislayne Elisana; Pimentel, A.; Fortunato, E.; Martins, R.; Queiroz, E. L.; Bianchi, Rodrigo Fernando; Faria, Roberto MendonçaComplex impedance measurements were used to analyze the influence of ultraviolet and ozone gas on the electronic behaviour of ZnO films grown by rf magnetron sputtering. The data show that UV exposure strongly increases the ac conductivity of the film at very low frequencies, and that after ozone exposure it recovers the original value. At high frequencies, however, UV-light exposure it does not change the cond...
Date: 2015
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Origin: Oasisbr