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毕业论文网 > 任务书 > 材料类 > 复合材料与工程 > 正文

微波水热法制备稀土掺杂ScF3荧光粉及其荧光性能的研究任务书

 2020-06-26 07:06  

1. 毕业设计(论文)的内容和要求

毕业论文是对大学四年学习情况以及对所做的课题情况的反映,其内容应该包括: (1) 查阅相关文献资料,明确实验内容了解课题的研究目的,进行大量的实验,合成出具有形貌尺寸均一、发光性能良好的scf3。

(2) 掺杂不同配比的稀土元素,探索其对合成scf3的发光性能的影响,制备性能良好的产物并进行表征,并在此基础上总结实验经验及注意事项,按要求完成毕业论文的写作。

要把毕业论文很好的完成并顺利通过答辩,这就要求学生做到: (1) 认真全面地收集,阅读材料。

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2. 参考文献

[1] Gulina L, Tolstoy V P, Kasatkin I, et al. Facile synthesis of scandium fluoride oriented single-crystalline rods and urchin-like structures by gas-solution interface technique[J]. Crystengcomm, 2017. [2] Hualan Xu, Liu R, Xu B, et al. Preparation and Temperature-Dependent Photoluminescence Properties of ScF3: Eu3 Submicroparticles[J]. New Journal of Chemistry, 2017, 41(16). [3] Aristova N M, Belov G V. Refining the thermodynamic functions of scandium triflouride ScF 3, in the condensed state[J]. Russian Journal of Physical Chemistry A, 2016, 90(3):700-703. [4] Cao J, Yuan L, Hu S, et al. Tuning the phase, morphology and size of monodisperse ScF3 and NaScF4 crystals through lanthanide doping[J]. Crystengcomm, 2016, 18(31). [5] Metzker M L, Gibbs R A. Substituted 4,4-difluoro-4-bora-3A,4A-diaza-s-indacene compounds for homogenous amplification/detection assays: US, US 5994063 A[P]. 1999. [6] Min P, Jing F, Song S, et al. Phase-tunable synthesis and upconversion photoluminescence of rare-earth-doped sodium scandium fluoride nanocrystals[J]. Crystengcomm, 2013, 15(35):6901-6904. [7] Fu H, Yang G, Gai S, et al. Color-tunable and enhanced luminescence of well-defined sodium scandium fluoride nanocrystals.[J]. Dalton Transactions, 2013, 42(22):7863. [8] Gulina L, Tolstoy V P, Kasatkin I, et al. Facile synthesis of scandium fluoride oriented single-crystalline rods and urchin-like structures by gas-solution interface technique[J]. Crystengcomm, 2017. [9] Hu L, Chen J, Fan L, et al. Rapid Molten Salt Synthesis of Isotropic Negative Thermal Expansion ScF3[J]. Journal of the American Ceramic Society, 2014, 97(4):1009#8211;1011. [10] Hu L, Chen J, Pan Z, et al. Large‐Scale Synthesis of Isotropic Single‐Crystalline ScF3 Cubes by Hydrothermal Method[J]. Journal of the American Ceramic Society, 2014, 97(5):1386-1388. [11] Li H, Huang Q, Wang Y, et al. Sc3 -induced morphology, phase structure, and upconversion luminescence evolution of YF3:Yb/Er nanocrystals[J]. Journal of Materials Chemistry C, 2017. [12] Moses L M, Farnsworth P B. Evaluation of particle size distributions produced during ultra-violet nanosecond laser ablation and their relative contributions to ion densities in the inductively coupled plasma[J]. Spectrochimica Acta Part B Atomic Spectroscopy, 2015, 113(s 5#8211;8):54-62. [13] Romao C P, Morelock C R, Johnson M B, et al. The heat capacities of thermomiotic ScF 3, and ScF 3 #8211;YF 3, solid solutions[J]. Journal of Materials Science, 2015, 50(9):3409-3415. [14] Wang Y, Wen T, Zhang H, et al. Low-Temperature Fluorination Route to Lanthanide-Doped Monoclinic ScOF Host Material for Tunable and Nearly Single Band Up-Conversion Luminescence[J]. Journal of Physical Chemistry C, 2012, 118(19):10314. [15] Cui Q, Xu J. Synthesis and highly efficient defect-related UV-blue band luminescence of KY 3 F 10, nanocrystals[J]. Journal of Materials Science Materials in Electronics, 2016, 27(5):4372-4377. [16] Ikonnikov D A, Voronov V N, Molokeev M S, et al. Upconversion luminescence of CsScF 4, crystals doped with erbium and ytterbium[J]. Optical Materials, 2016, 60:584-589. [17] Liu Y, Liu G, Wang J, et al. NaGdF 4 : Ln 3 , (Ln 3 = Dy 3 , Tb 3 ) nanophosphors: Green-emitting and energy transfer excited by UV and n-UV light[J]. Materials Research Bulletin, 2016, 84:232-239.

3. 毕业设计(论文)进程安排

起讫日期 设计(论文)各阶段工作内容 备 注 2018.01 根据所选课题,查阅相关文献并完成翻译工作 2018.01-2017.04 合理改变反应温度,反应时间,掺杂不同稀土元素,用微波水热法合成出结晶度高,颗粒尺寸较为均一,发光性能良好的ScF3粉体 2018.05 整理实验数据 2018.06 在实验基础上撰写毕业论文

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