CAJ | 학술논문

以金属锌为原料不添加任何催化剂,在700℃时通过平衡气量控制法合成四针状氧化锌晶须.研究了成长时间对样品微结构和发光性能的影响.结果表明,制备的样品是由四针状氧化锌组成的；四针状氧化锌针的长度和直径随成长时间的延长而增加；在样品的室温发光谱中,在385～391 nm处出现强的紫外光发射,但没有任何深水平发射,且紫外发射的强度随样品成长时间的延长而增强.
이금속자위원료불첨가임하최화제,재700℃시통과평형기량공제법합성사침상양화자정수.연구료성장시간대양품미결구화발광성능적영향.결과표명,제비적양품시유사침상양화자조성적；사침상양화자침적장도화직경수성장시간적연장이증가；재양품적실온발광보중,재385～391 nm처출현강적자외광발사,단몰유임하심수평발사,차자외발사적강도수양품성장시간적연장이증강.
The zinc oxide whiskers were synthesized by the equilibrium gas expanding method at the temperature of 700 C with metallic zinc as the main raw material without any catalysts.The effects of the growth time on microstructure and photoluminescence properties were investigated.The results show that the as-grown samples are composed of uniform tetrapod-like ZnO whiskers.The length and diameter of the arms of the tetrapod-like ZnO whiskers increase obviously with the increase of the growth time.The strong single ultraviolet(UV)emission centering 385-391 nm without any accompanying deep-level emission is observed in the room temperature photoluminescence(PL)spectra of the whiskers.The intensity of UV emission increases markedly with the increase of growth time.