| 1. | Quantum size effect and photocatalytic properties 超微粒子的量子尺寸效应和光催化性能 |
| 2. | Further study showed that quanta size effect is the reason of ultraviolet absorption and blue shift of absorption peak 分析认为纳米氧化锌的量子尺寸效应既是其吸收紫外线的主要原因,也是其紫外吸收峰蓝移的主要原因。 |
| 3. | Cdso . iseo . 9 nanocrystals exhibited the excellent resonant and non - resonant third - order optical nonlinearties from electroabsorption spectra . quantum size effect was also observed 对纳晶电调制吸收光谱的测试,纳晶表现出很好的共振和非共振三阶光学非线性性能及量子尺寸效应。 |
| 4. | The uv - vis absorption spectra of pbs nanoparticles exhibit a blue shift in the absorption edges of the samples compared with that of bulk pbs , indicating the quantum size effect of pbs nanoparticles Pbs纳米粒子的紫外吸收带边与其体相材料相比发生了蓝移,表现出明显的量子尺寸效应。 |
| 5. | In this article , four basic properties of nanometer particle are summarized : quantum size effect , surface effect , volume effect , macroscopical quantum tunnel effect , and several ways of preparation and evaluation of nanometer particle are introduced 摘要综述了纳米微粒的四个基本特性:量子尺寸效应、表面效应、体积效应及宏观量子隧道效应,并介绍了纳米微粒的制备方法及对纳米微粒评估的方法。 |
| 6. | The blue shift could be associated with precipitation of xe gas bubbles . since the precipitation will change the defect morphology and reduce the sizes of each isolated defects , so to intensify the quantum size effects of nano - particles and induce the observed band gap broadening 10 ~ ( 17 ) cm ~ ( - 2 )样品峰位蓝移,是由于xe以气泡形式析出,改变了缺陷形态、使缺陷的分立尺寸减小,纳米粒子的量子尺寸效应变得明显,导致能隙展宽。 |
| 7. | Nanoscience have been drawn considerable interest and physicaly investigated all over the world . the nanoparticles have different properties compared with bulk materials such as quantum size effect , surface effect , the dieletric confinement etc . the intrinsic optical properties of nanoparticles have been thoroughly studied 纳米材料科学是一门涉及多学科领域的科学,纳米颗粒由于尺寸小能产生量子尺寸效应,表面效应,介电限域效应和宏观量子隧道效应等。 |
| 8. | According to the problems in current research , my works have four parts as following : 1 . cds nanoparticles were synthesized by surface - modified with thiourea and stabilized by poly ( n - vinyl - 2 - pyrrolidone ) ( pvp ) . the results showed that cds nanoparticles , which exhibited significantly quantum size effect and enhanced luminescence , were prepared through the surface modified with thiourea 鉴于目前使用苯硫酚修饰对cds纳米粒子的荧光具有强烈的淬灭作用,而硫醇具有较强的毒性,本研究用硫脲作表面修饰剂,以聚乙烯吡咯烷酮( pvp )作稳定剂制备了粒径分布较均匀、性能稳定的cds纳米粒子。 |
| 9. | Due to their unique optical , electrical properties and potential applications based on quantum size effect , small size effect and interface effect , cermet films consisting of ceramic matrix and embedded metal nanoparticles are attracting increasing attention for both fundamental and practical reasons 作为一类新型的功能薄膜材料,由纳米金属微粒镶嵌于陶瓷基体中所构成的金属陶瓷薄膜,由于量子尺寸效应、小尺寸效应、界面效应而具有独特的光电特性和良好的应用前景,正在引起材料学界的极大关注。 |
| 10. | This paper analyses the cause of producing reunite in nano - powder from four facets , such as quanta size effect , small size effect , surface effect and macroscopical quanta size effect , and countermeasures are suggested from three facets , such as preparation , storage and transport as well as use , both in theory and experiment 摘要根据作者理论和试验方面的探索,从量子尺寸效应、小尺寸效应、表面效应及宏观量子隧道效应等方面分析了纳米粉体材料产生团聚的原因,并从制备、储运、使用等方面提出了具体解决纳米粉体材料团聚的措施。 |