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Novel Hierarchical YBO3 :Eu3+ Nanocrystals Synthesized by Folic Acid Assisted Hydrothermal Process
Published online by Cambridge University Press: 09 December 2019
Abstract
YBO3:Eu3+ crystals with flower-like hierarchitecture are readily synthesized through a folic acid assisted hydrothermal process using polyborate precursors in the aqueous solution. It was found that the pH value , borate/yittrium ratio and the mass of folic acid take effects on the morphology and photoluminescence emission intensity of YBO3:Eu3+ crystals. The product with the small flower-like hierarchitecture was obtained under the conditions of pH value at 9, borate/yittrium ratio at 2 and the mass of folic acid at 0.44 g, showing the strongest photoluminescence intensity. The growth process of the YBO3:Eu3+ flowers and microflowers was invesitgated based on the time-dependent experiments, which showed that the growth mechanism of the flower-like hierarchitecture follows an in situ growth rather than self-assembly process as reported previously. Such a hydrothermal route using folic acid as a capping agent may provide a green and effective method for fabricating useful and complex 3D architectures of LEDs phosphors.
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- Articles
- Information
- MRS Advances , Volume 5 , Issue 31-32: Fabrication of Functional Materials and Nanomaterials , 2020 , pp. 1661 - 1670
- Copyright
- Copyright © Materials Research Society 2019
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