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Ba_3V_2O_8∶Eu^(3+)纳米花的制备及光致发光性能研究 被引量:1

Synthesis and photoluminescence property of Ba_3V_2O_8∶Eu^(3+) nanoflowers
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摘要 采用复合氢氧化物媒介法制备了Ba3V2O8∶Eu3+纳米花。利用SEM-EDS、XRD、TEM和XPS对晶体的形貌和尺寸、结构和化学组成进行了表征。结果表明产物是由厚度约20nm的纳米片组成的花状Ba3V2O8∶Eu3+纳米晶体。荧光光谱测定发现Ba3V2O8∶Eu3+晶体在紫外光和蓝光激发下都能产生591和612nm 2个强发射峰,表明其具有将紫外光和蓝光转换成红光的能力,可以进一步应用于光转换和光发射领域。探讨了Ba3V2O8∶Eu3+纳米花的发光机理。 Ba3V2O8∶Eu3+ nanoflowers were obtained by the composite hydroxide mediated(CHM) method.Scan electron microscope and transmission electron microscope displayed that the flower-shaped crystals were composed of nanosheets with thickness of about 20nm.Photoluminescence spectrum of the Ba3V2O8∶Eu3+ nanoflowers exhibited red emission centered at 591 and 612nm,which showed function of red light conversion.The mechanism of light emission of the Ba3V2O8∶Eu3+ nanoflowers was discussed.
出处 《功能材料》 EI CAS CSCD 北大核心 2012年第18期2564-2567,共4页 Journal of Functional Materials
基金 国家自然科学基金资助项目(31170923 60976055) 国家自然科学基金 中国工程物理研究院联合基金资助项目(11076030) 重庆市自然科学基金资助项目(cstcjjA20004)
关键词 Ba3V2O8∶Eu3+纳米花 复合氢氧化物媒介法 制备 光致发光 Ba3V2O8∶Eu3+ nanoflowers; composite-hydroxide-mediated method; synthesis; photoluminescence property
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