Multi-wavelength-driven solar spectral conversion in P2O5–ZnO–Li2O glasses for improving greenhouse photosynthetic activity
Multi-wavelength-driven solar spectral conversion in P2O5–ZnO–Li2O glasses for improving greenhouse photosynthetic activity
复制标题
DOI：
10.1016/j.ceramint.2014.08.116
复制
发表时间：
2015
影响因子：
5.2
通讯作者：
Tian-shuai Lv;Xuhui Xu;Xue Yu;Dacheng Zhou;J. Qiu
中科院分区：
文献类型：
--
作者：
Tian-shuai Lv;Xuhui Xu;Xue Yu;Dacheng Zhou;J. Qiu
最近在ns2型Sn2+激活剂掺杂的ZnO-P2O5玻璃系统中观察到非晶材料中最高的量子效率，其可与MgWO4晶体相媲美。本文采用熔融淬火法制备了Mn2+/Sn2+共掺杂低熔点44P2O5–36ZnO–20Li2O(PZL)玻璃，探索温室用蓝光和红光发射材料。通过衰减曲线以及吸收、激发和发射光谱系统地研究了 PZL 玻璃的光致发光特性。该玻璃在可见光区域具有高光学透明度，并且可以发射在 300、354、409 和 505 nm 激发的强红光。值得注意的是，在 300 nm 激发下，实现了蓝色/红色双发射。此外，通过简单地调节Mn2+的含量，可以通过调节Sn2+→Mn2+的能量转移（ET）来调节红光与蓝光的比例。我们的研究扩展了玻璃温室中太阳能的利用，用于植物栽培。
The highest quantum efficiency among amorphous materials was recently observed in thens2-type Sn2+activators doped ZnO–P2O5glass system, which is comparable to the MgWO4crystal. In this paper, Mn2+/Sn2+-codoped low-melting 44P2O5–36ZnO–20Li2O (PZL) glasses were prepared by the melt-quenching method to explore blue and red emission materials for greenhouse. Photoluminescence properties of the PZL glasses were investigated systematically by decay curves and absorption, excitation, and emission spectra. The glasses have high optical transparency in the visible region, and can emit intense red light excited at 300, 354, 409, and 505 nm. Significantly, upon 300 nm excitation, dual blue/red emissions were achieved. Moreover, the ratio of red to blue light could be tuned by adjusting the energy-transfer (ET) of Sn2+→Mn2+through simply adjusting the content of Mn2+. Our research extends the utilization of solar energy in glass greenhouse for plant cultivation.