当前位置: X-MOL 学术Chem. Eng. J. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Towards control facilities for mimicking plant growth optimum action spectrum: Efficient near-ultraviolet to far-red light-conversion in Cr3+-doped rare-earth aluminate phosphors
Chemical Engineering Journal ( IF 13.3 ) Pub Date : 2022-11-08 , DOI: 10.1016/j.cej.2022.140235
Yuanyuan Liang , Quantian Cao , Yiqing Zhou , Wenli Zhou , Jilin Zhang , Liping Yu , Shixun Lian , Zhongxian Qiu

Phosphor-converted materials have recently become promising candidates for the next generation horticulture and agriculture owing to their ability to overcome the daily sunlight limitations. Here, Tb0.7La0.3ZnAl11O19:Cr3+ (TLZA:Cr3+) was prepared by a high-temperature solid state method, which showed high near-ultraviolet (NUV) and green light to far-red conversion efficiencies. In the optimized TLZA:6%Cr3+ phosphor, the energy transfer from the host to the dopant was carried out through a dipole-quadrupole interaction mechanism with an efficiency of 99.62 %. The phosphor-converted light-emitting diode (pc-LED) devices were fabricated by combining TLZA:6%Cr3+, blue and red phosphors with 380 nm NUV-chips, which modulated the optimum action spectrum for indoor plant growth. TLZA:6%Cr3+ luminescent film laminated glass (LFLG) adjusted the composition of the solar spectrum to red/blue light ratio of 3:1 and promoted plant growth in outdoor horticultural greenhouses. Therefore, the pc-LED and LFLG fabricated with the TLZA:6%Cr3+ phosphor in this work are excellent spectral control devices for indoor plant lighting and outdoor horticultural facilities, respectively.



中文翻译:

迈向模拟植物生长最佳作用光谱的控制设施:Cr3+ 掺杂的稀土铝酸盐荧光粉中高效的近紫外光到远红光转换

磷转化材料最近成为下一代园艺和农业的有前途的候选者,因为它们能够克服日常的阳光限制。在这里,Tb 0.7 La 0.3 ZnAl 11 O 19 :Cr 3+ (TLZA:Cr 3+ ) 是通过高温固相法制备的,它显示出高的近紫外 (NUV) 和绿光到远红光的转换效率. 在优化的TLZA:6%Cr 3+荧光粉中,从主体到掺杂剂的能量转移通过偶极-四极相互作用机制进行,效率为99.62 %。磷光体转换发光二极管 (pc-LED) 器件是通过结合 TLZA:6%Cr3+、蓝色和红色荧光粉,带有 380 nm NUV 芯片,可调节室内植物生长的最佳作用光谱。TLZA:6%Cr 3+发光膜夹层玻璃(LFLG)将太阳光谱的组成调整为红/蓝光比为3:1,促进室外园艺温室植物生长。因此,本工作中使用 TLZA:6%Cr 3+荧光粉制造的 pc-LED 和 LFLG分别是室内植物照明和室外园艺设施的优秀光谱控制装置。

更新日期:2022-11-08
down
wechat
bug