纳米Cu_2O花的制备及其光学性质研究  

Preparation and studies on optical properties of Cu_2O nanoflowers

作　　者：罗永松[1] 夏晓红[1] 任沁峰[1] 李素琴[1] 李家麟[1] 贾志杰[1] 

机构地区：[1]华中师范大学纳米研究院

出　　处：《电子元件与材料》2007年第2期11-13,共3页Electronic Components And Materials

基　　金：国家自然科学基金资助项目(20207002)

摘　　要：以Cu(CH3COO)2.H2O为原料,CTMAB(十六烷基三甲基溴化铵)和NaOH为添加剂,NaBH4为还原剂,通过液相法在低温(60℃)的条件下分步合成了纳米Cu2O花。采用XRD、SEM、TEM和紫外–可见吸收光谱分析等手段对纳米Cu2O花进行了表征。结果表明,纳米Cu2O花的生长过程符合成核–溶解–再结晶的机制。对照实验发现,NaOH和CTMAB的浓度对最终纳米花的形成起了关键性的作用。Flowerlike Cu2O nanostructures have been successfully prepared by a low liquid phase method using Cu（CH3COO）2 · H2O as the starting materials and NaBH4 as the reducer agent. The as-prepared Cu2O nanoflowers were characterized by XRD, SEM, TEM and UV-vis spectrophotometer. The results indicate that the growth of the nanoflowers are governed by a nucleation-dissolution-re, crystallization growth mechanism. Control experiments are carried out to demonstrate that the concentration of NaOH and CTMAB play key roles in the formation of the as-synthesized nanoflowers.

关 键 词：半导体技术 液相法 低温 分步合成 纳米Cu2O花 

分 类 号：O643[理学—物理化学] TQ56[理学—化学]