A one-step synthesis of Ga2O3 nanorods by heating molten gallium in ambient air at high temperatures is presented. The high-temperature synthesis creates oxygen vacancies and incorporates nitrogen from the environment. The oxygen vacancy in Ga2O3 is responsible for the emission in the blue–green region, while nitrogen in Ga2O3 is responsible for red emission.
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Vanithakumari et al. (2009) studied this question.
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