Synthesis of green emission upconversion phosphor nanosheets (LaNb2O7) doped with Er3+ and Yb3+
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- 作者：Soichi Takasugia ; Riku Iidab ; Koji Tomitab ; tomita@keyaki.cc.u-tokai.ac.jp" class="auth_mail" title="E-mail the corresponding author ; Michio Iwaokaa ; b ; Kiyofumi Katagiric ; Minoru Osadad ; Masato Kakihanae
- 关键词：UPC ; upconversion ; XRD ; X-ray diffration ; BET ; brunauer&ndash ; emmett&ndash ; teller ; TEM ; transmission electron microscopy ; AFM ; atomic force microscope ; FE-SEM ; field-emission scanning electron microscopy ; DFM ; dynamic force mode ; TBA ; tetrabutylammonium ; ICSD ; inorganic crystal structure database
- 刊名：Journal of Luminescence
- 出版年：2016
- 出版时间：May 2016
- 年：2016
- 卷：173
- 期：Complete
- 页码：130-134
- 全文大小：1433 K
文摘
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La0.45Er0.05Yb0.5Nb2O7 nanosheets were synthesized by a soft breakdown method (exfoliation).
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The lateral size and thickness of the nanosheets were approximately 300 nm and approximately 3.91 nm, respectively.
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The exfoliated nanosheets exhibited bright upconversion emission 7.6 times more intense than that of the milled sample (100–500 nm).
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The nanosheets dispersed in solvents exhibited greatly different upconversion emission intensities depending on the solvent׳s vibrational energy.