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本科毕业论文摘要的翻译，本人就要毕业了，很难做好这个....
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下面是我的摘要和我写的翻译，各位帮忙修改，完善下，谢谢。 近年来，以CeO2为基质的稀土发光材料具有良好的光学性能，其制备技术的发展、荧光性能优化和功能器件的应用已经成为人们研究的热点。而稀土掺杂的CeO2 具有特殊的光学性能，并广泛应用于发光材料[1]、催化剂[2]、紫外线吸收材料[3]、化学机械抛光材料[4]、电子陶瓷[5]、固体氧化物电池材料[6]等领域。本文采用水热法制备了CeO2:Eu3+红色荧光粉, 并通过X射线粉末衍射(XRD) 、高分辨透射电镜（HRTEM）、扫描电子显微镜(SEM)、紫外漫反射光谱（UV-vis）、 红外光谱仪(IR)和荧光光谱(FL)等技术表征了样品，并探讨了溶液的pH、反应时间、反应温度，Eu3+掺杂浓度，灼烧时间，灼烧温度等对产品荧光性能的影响。测试结果表明：CeO2:Eu3+样品具有良好的结晶度，属于立方萤石结构的单晶粉末，其晶粒尺寸在12-50 nm内。荧光结果表明：CeO2?Eu3+纳米晶在593、612、632 nm 处具有较强的发射峰(红光)，而且较高的退火温度有利于提高样品的晶化度和荧光强度。 In recent years, the rare earth luminescence materials which made from CeO2 have good optical performance. The development of preparation technology, optimization of fluorescence performance and application of functional devices of rare earth luminescence materials have become a research hot spot. And the CeO2 which doped with rare earth has special optical properties, and widely used in the field of luminescence materials, catalyst, ultraviolet ray absorption materials, chemical mechanical polishing materials, electronic ceramic and solid oxide battery materials and so on. CeO2:Eu3+ red phosphors were successfully synthesized by hydrothermal method .The samples were characterized by XRD, HRTEM, SEM, UV-Vis, IR and FL technologies. And it also investigated the effects of pH values of solution, reaction time, reaction temperature，dosage concentration of Eu3+ , firing time and firing temperature to the performance of product fluorescence. The results indicated that the sample CeO2:Eu3+ was well crystallized with a good crystallinity. It was monocrystal powder in cube fluorite and the size of grain was around 12~50 nm. The fluorescence measurements show that the CeO2:Eu3+ nano-crystals possess good emission intensities at 593, 612 and 632nm respectively. And the crystallinity and fluorescence intensity of the sample were improved by increasing annealing temperature. |
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money4u
至尊木虫 (著名写手)
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连__生: 金币+3, 翻译EPI+1, ★★★很有帮助, 谢谢 2012-04-11 11:30:12
sltmac: 金币+2 2012-04-26 10:46:03
连__生: 金币+3, 翻译EPI+1, ★★★很有帮助, 谢谢 2012-04-11 11:30:12
sltmac: 金币+2 2012-04-26 10:46:03
| As rare-earth luminescence materials based on CeO2 have showed very good optical performance, the research on the development of preparation technology, optimization of fluorescence performance and application of functional devices involving in the materials have been being a hot spot in recent years. |
2楼2012-04-10 18:12:17
money4u
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3楼2012-04-10 22:46:03
money4u
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| The CeO2:Eu3+ red phosphors, which is successfully synthesized by hydrothermal method, has been characterized by means of XRD, HRTEM, SEM, UV-Vis, IR and FL technologies. The influences of the process conditions including pH values of the solution, reacting time, reacting temperature, concentration of Eu3+ , firing time and firing temperature on the fluorescence performance are also investigated. |
4楼2012-04-10 23:00:35
money4u
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Mally89: 金币+2, 感谢应助！~欢迎常来！~好运！~\(^o^)/~ 2012-04-14 13:04:43
Mally89: 金币+2, 感谢应助！~欢迎常来！~好运！~\(^o^)/~ 2012-04-14 13:04:43
| The testing results indicate that the sample CeO2:Eu3+ is well crystallized with a good crystallinity, the monocrystal powders are of cubic fluorite structure, and size of the grains are around 12nm to 50 nm. The fluorescence measurements show that the CeO2:Eu3+ nano-crystals possess good emission intensities at 593nm, 612nm and 632nm respectively, and higher annealing temperature is good for the crystallinity and fluorescence intensity of the sample. |
5楼2012-04-10 23:20:48
