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首页> 外文期刊>RSC Advances >Tunable luminescence and energy transfer properties of Bi3+ and Mn4+ co-doped Ca14Al10Zn6O35 phosphors for agricultural applications
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Tunable luminescence and energy transfer properties of Bi3+ and Mn4+ co-doped Ca14Al10Zn6O35 phosphors for agricultural applications

机译：Bi3 +和Mn4 + Co-掺杂Ca14Al10Zn6035磷光体的可调谐发光和能量转移性能进行农业应用

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摘要

A series of Bi3+ and Mn4+ co-activated Ca14Al10Zn6O35 (CAZO) phosphors were synthesized using a solid state sintering method. The phase and morphologies of the CAZO based phosphors were confirmed using powder X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. A novel phosphor CAZO: Bi3+ emits bright blue light under near-ultraviolet (NUV) excitation and its luminescence properties were characterized by diffuse reflectance and photoluminescence spectra. Tunable luminescence from blue to red was observed in Bi3+ and Mn4+ co-activated CAZO, which is attributed to energy transfer from Bi3+ to Mn4+. The energy transfer mechanism has been characterized by the decay times of the Bi3+ emission, which changes with the concentration of Mn4+. The energy transfer efficiency from Bi3+ to Mn4+ increases linearly with increasing the concentration of Mn4+. The asobtained phosphor has a potential application in agricultural industry because the blue and red lights excited by NUV light emitting diodes (LEDs) are helpful for the improvement of photosynthesis.
机译：使用固态烧结法合成了一系列Bi3 +和Mn4 +共激活Ca14Al10Zn6O35（Cazo）磷光体。使用粉末X射线衍射（XRD）和扫描电子显微镜（SEM）确认基于基于Cazo基磷光体的相和形态。一种新的磷光体Cazo：Bi3 +在接近紫外（Nuv）激发下发射亮蓝光，其发光性能通过弥漫性反射率和光致发光光谱表征。在Bi3 +和MN4 +共激活的Cazo中观察到从蓝色到红色的可调谐发光，其归因于Bi3 +至Mn4 +的能量转移。能量转移机制的特征在于Bi3 +发射的衰减时间，其随Mn4 +的浓度而变化。随着MN4 +的浓度增加，Bi3 +至Mn4 +的能量转移效率随线增加。由于NuV发光二极管（LED）激发的蓝色和红灯有助于改善光合作用的蓝色和红色灯具在农业行业中具有潜在的应用。

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  • 来源
    《RSC Advances》 |2017年第24期|共8页
  • 作者

    Li Li; Pan Yuexiao; Chen Zhen; Huang Shaoming; Wu Mingmei;

  • 作者单位

    Wenzhou Univ Coll Chem &

    Mat Engn Key Lab Carbon Mat Zhejiang Prov Wenzhou 325035 Peoples R China;

    Wenzhou Univ Coll Chem &

    Mat Engn Key Lab Carbon Mat Zhejiang Prov Wenzhou 325035 Peoples R China;

    Wenzhou Univ Coll Chem &

    Mat Engn Key Lab Carbon Mat Zhejiang Prov Wenzhou 325035 Peoples R China;

    Wenzhou Univ Coll Chem &

    Mat Engn Key Lab Carbon Mat Zhejiang Prov Wenzhou 325035 Peoples R China;

    Sun Yat Sen Univ Sch Chem &

    Chem Engn MOE Key Lab Bioinorgan &

    Synthet Chem Guangzhou 510275 Guangdong Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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