CAJ | 학술논문

通过物理气相沉积方法在镀金的硅基片上制备了ZnxCd1-xS纳米棒,并用VLS机制对生长机理进行了讨论.XRD分析表明产物是六方相的结晶体;SEM观察到纳米棒的长度为3～4微米,直径约为40纳米.PL谱显示有明显的红移现象,分析认为是由于ZnS对CdS晶格的轻微不匹配造成的,同时PL谱的峰型显示产物为ZnxCd1-xS,而不是两者的混合物.该制备方法可以应用于其它三元金属硫化物的制备.
통과물리기상침적방법재도금적규기편상제비료ZnxCd1-xS납미봉,병용VLS궤제대생장궤리진행료토론.XRD분석표명산물시륙방상적결정체;SEM관찰도납미봉적장도위3～4미미,직경약위40납미.PL보현시유명현적홍이현상,분석인위시유우ZnS대CdS정격적경미불필배조성적,동시PL보적봉형현시산물위ZnxCd1-xS,이불시량자적혼합물.해제비방법가이응용우기타삼원금속류화물적제비.
Rapid synthesis of ZaxCd1-xS nanorods has been achieved by a simple thermal e-vaporation of ZnS and CdS powders, using gold as a catalyst. The vapor-liquid-solid process is proposed for the formation of the ZaxCd1-xS nanorods. XRD analysis reveals that the crystal structure of the product was hexagonal phase. SEM observation shows that the length and width of the ZaxCd1-xS nanorods are in the range of 3～4 μm, 40 nm, respectively. The obvious red shift of PL is possibly due to the slightly mismatch of ZnS to CdS lattice. The profile of the PL curves of ZaxCd1-xS indicates that the ZaxCd1-xS products are complex compounds rather than a simple mixture of ZnS and CdS. The synthesis process used in the prsent work is expected to be applicable to the preparation of other ternary sulfides.