CAJ | 학술논문

利用水热法成功制备具有高结晶性的海胆状氧化锌（ZnO）微纳米颗粒,由晶体的中心向外以发射状生长出大量ZnO六棱柱.采用SEM、XRD、PL、EDX对其形貌、粒径、晶体结构、荧光特性及材料组成进行了表征和分析.结果表明,制得的海胆状ZnO粒子分散性较好,粒径分布窄,具有良好的纤锌矿结构;通过改变反应时间,粒径可在30～80μm范围内调节;并且观察到海胆状ZnO荧光光谱在450nm附近具有一个较宽的可见光发射峰.通过对生长过程的分析,提出一个可能的导致海胆状ZnO形成的多步生长过程.
이용수열법성공제비구유고결정성적해담상양화자（ZnO）미납미과립,유정체적중심향외이발사상생장출대량ZnO륙릉주.채용SEM、XRD、PL、EDX대기형모、립경、정체결구、형광특성급재료조성진행료표정화분석.결과표명,제득적해담상ZnO입자분산성교호,립경분포착,구유량호적섬자광결구;통과개변반응시간,립경가재30～80μm범위내조절;병차관찰도해담상ZnO형광광보재450nm부근구유일개교관적가견광발사봉.통과대생장과정적분석,제출일개가능적도치해담상ZnO형성적다보생장과정.
The urchin-like ZnO micro/nanoparticles with high crystallinity were obtained by hydrothermal synthesis.It observed a radial growth of urchin-like ZnO composed with hexagonal prism nanorods from center to outsides.The morphology,particle diameter,crystalline structure,fluorescence and chemical composition of the urchin-like ZnO particles were characterized and analyzed by SEM,XRD,PL and EDX.The results indicate that the urchin-like ZnO particles with wurtzite structure are narrow in distribution of size and have a controllable diameter in the range of 30~80 μm by varying reaction time.A broad visible light emission peak around 450 nm is also observed by PL spectroscopy for the ZnO products.A multistep growth process that led to the formation of such a structure is proposed.