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Novel green synthesis and improved solar-blind detection performance of hierarchical γ-Ga2O3 nanospheres

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Abstract

High-quality γ-Ga2O3 nanospheres (diameter, 130 nm) were successfully synthesized by direct conversion of a precursor complex of Ga3+ ions and tartrate ions (L2−) in water. The addition of even a small amount of L2− ions can efficiently suppress the hydrolysis of Ga3+ ions to GaOOH. This synthetic method is new and has great advantages of simplicity, organic solvent-free processing and high efficiency. The γ-Ga2O3 nanospheres which consist of primary nanoparticles with a diameter of about 10 nm show an extremely high specific surface area (83.7 m2 g−1), thereby possessing improved solar-blind detection performance (e.g., light current, 1.83 μA; light–dark ratio, 2.29 × 103 and photocurrent fluctuation, <0.5%) relative to reported results elsewhere.

Graphical abstract: Novel green synthesis and improved solar-blind detection performance of hierarchical γ-Ga2O3 nanospheres

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Publication details

The article was received on 13 Jun 2017, accepted on 26 Jun 2017 and first published on 26 Jun 2017


Article type: Communication
DOI: 10.1039/C7TC02615C
Citation: J. Mater. Chem. C, 2017, Advance Article
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    Novel green synthesis and improved solar-blind detection performance of hierarchical γ-Ga2O3 nanospheres

    M. M. Ruan, L. X. Song, Z. Yang, Y. Teng, Q. S. Wang and Y. Q. Wang, J. Mater. Chem. C, 2017, Advance Article , DOI: 10.1039/C7TC02615C

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