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| 1 | High-gravity-assisted green synthesis of rare-earth doped calcium molybdate colloidal nanophosphors显示文摘In this work,we report an innovative route for the synthesis of rare-earth doped calcium molybdate(CaMoO4)nanophosphors by using high gravity rotating packed bed(RPB)technology and paraffin liquid as the solvent.The significant intensified mass transfer and micromixing of reactants in the RPB reactor are benefiting for homogeneous doping of rare-earth ions in the host materials,leading to nanophosphors with high quantum efficiency.The use of liquid paraffin as the solvent eliminates the safety risks associated with volatile organic compounds,increasing the potential for clean production of nanophosphors.Under excitation of deep ultraviolet(DUV)light,the CaMoO4:Na+,Eu3+nanophosphors exhibit red emission at peak wavelength of 615 nm and quantum yield of up to 35.01%.The CaMoO4:Na+,Tb3+nanophosphors exhibit green emission at peak wavelength of543 nm with quantum yield of up to 30.66%.The morphologies of the nanophosphors are tunable from nanofibers through nanorods to nanodots and the possible mechanism of controlling the formation of different nanostructures is proposed on the basis of experimental results and theoretical analysis of mesoscience.These nanophosphors are highly dispersible in organic solvents and utilized for fabricating fabrication of flexible,freestanding luminescent films based on silicone resin.We also demonstrate the red LEDs consisting of the hybrid films of CaMoO4:Na+,Eu3+nanoparticles as color-converting phosphors and DUV LEDs as illuminators,offering strong potential for future nanophosphors-basedsolid-state lighting systems. | Yuan Pu Lifeng Lin Jun Liu Jiexin Wang Dan Wang | 2020 | Chinese Journal of Chemical Engineering2020，28，6： | 3 |
| 2 | 液相等离子体及其在纳米材料制备中的应用显示文摘液相等离子体是冷等离子体的一个新分支,具有温度低、传质传热快、常压操作、反应活性高等特点。基于液相等离子体的过程强化技术在纳米材料制备、挥发性有机物降解、杀菌消毒、化学合成等领域有广泛的应用前景。以液相等离子体中纳米材料的制备为研究对象,介绍了反应体系可能存在的活性粒子、检测方法和反应机理;对常见的反应器结构进行归纳整理,按照放电是否在电解液内部进行将其分为非浸没式和浸没式液相等离子体两大类,并列举了几种典型的反应器结构;介绍了几类利用液相等离子体技术制备纳米材料的典例,并对该领域的研究现状做了总结;对该领域亟需解决的问题与发展方向进行讨论与展望。 | 芮立晨 庞子宁 李煊赫 沈剑 李青 林良良 | 2022 | 强激光与粒子束2022，34，6： | 1 |
| 3 | 微流控技术制备荧光纳米材料研究进展显示文摘荧光纳米材料因其独特的光学性能而被广泛用于传感、生物成像、离子检测等领域。微流控是一种能在微尺度上精确控制和操控流体的技术,近年来在有机合成、荧光材料制备、细胞检测、药物筛选等领域展现出重要的应用价值。本文以荧光纳米材料的制备为切入点,综述了微流控在该领域的研究进展。首先,根据反应器特征结构阐述了芯片微反应器、管式微反应器和离心式微反应器的特点及原理;进一步地,归纳整理了不同类型荧光纳米材料制备过程的典型例子,包括半导体纳米颗粒、碳点、钙钛矿纳米颗粒、稀土纳米材料、金属及氧化物复合纳米颗粒;最后,立足研究现状指出了该领域的挑战及研究方向。 | 李子洋 李煊赫 李慧珺 林良良 | 2022 | 发光学报2022，43，10： | 0 |
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