CdS:Cu一维纳米结构及其光子学特性研究

Synthesis and photonics characteristics research of CdS:Cu 1D nanostructures

利用化学气相沉积方法成功合成了CdS掺Cu的一维纳米结构,揭示了该掺杂纳米结构特殊的生长机制,发现了该结构新颖的光子学性质.实验表明,通过控制实验条件可以实现CdS中Cu离子掺杂,并可获得高质量的一维纳米结构.由于掺杂离子的影响,纳米结构在不同强度的光激发时表现出不同线形的发光光谱,掺杂浓度对发光峰的位置和相对强度有比较明显的影响,但对光谱线形影响不大.所得结果将有助于拓展CdS纳米结构在纳米光子学领域中的应用.

One-dimensional （1D） Cu-doped CdS nanostructure is synthesized via the chemical vapor deposition. The growth mechanism of Cu-doped CdS nanoarchitecture is disclosed. Some novel photonic properties are discovered. The experimental results indicate that the preparation of Cu-doped CdS 1D nanostructure could be achieved by controlling the experiment conditions. With the effect of doped ions, the nanoarchitecture has different radiant spectra when it is excitated by lasers of different powers. Doping concentration is considered to be an evident factor to affect the position and relative power of the illuminant peaks but not to influence spectrum shapes evidently. The result may be conducible to extending the application of CdS nanoarchitectures in the research field of nanophotonics.