采用电子束蒸镀方法在Si(100)衬底上沉积了ZnO:Al(ZAO)薄膜.在氧气气氛下对ZnO:Al薄膜进行了退火处理,退火温度的范围为400～800℃.X射线衍射(XRD)图样表明所制备的ZnO:Al薄膜具有六方结构,为c轴(002)择优取向的多晶薄膜.用Van der Pau...采用电子束蒸镀方法在Si(100)衬底上沉积了ZnO:Al(ZAO)薄膜.在氧气气氛下对ZnO:Al薄膜进行了退火处理,退火温度的范围为400～800℃.X射线衍射(XRD)图样表明所制备的ZnO:Al薄膜具有六方结构,为c轴(002)择优取向的多晶薄膜.用Van der Pauw法测量了ZAO薄膜的电学特性,结果显示其电导率在500℃达到最大值.测量了ZAO薄膜的室温微区光致发光和变温发光光谱,观测到了ZnO自由激子、束缚在中性施主中心(D0)上的束缚激子以及束缚在离化施主中心(D+0)上的束缚激子发射.展开更多
Thin PVA/nickel acetate composite fibers were prepared by using sol-gel processing and electrospinning technique. After the calcination of the above precursor fibers,NiO nanofibres with a diameter of 50—100 nm could ...Thin PVA/nickel acetate composite fibers were prepared by using sol-gel processing and electrospinning technique. After the calcination of the above precursor fibers,NiO nanofibres with a diameter of 50—100 nm could be successfully obtained. The fibers were characterized by TG-DTA, FT-IR,WAXD and SEM respectively. The results showed that the crystalline phase and morphology of NiO fibres were greatly influenced by the calcination temperature. [WT5HZ]展开更多
Thin PVA/zirconium oxychloride composite fibers were prepared by using sol-gel processing and electrospinning technique. After calcining the above precursor fibers,ZrO 2 nanofibers with a diameter of 70—100 nm were s...Thin PVA/zirconium oxychloride composite fibers were prepared by using sol-gel processing and electrospinning technique. After calcining the above precursor fibers,ZrO 2 nanofibers with a diameter of 70—100 nm were successfully obtained. The ZrO 2 nanofibers were characterized by XRD,TG-DTA,FTIR,and SEM,respectively. The results show that the crystallinity and morphology of ZrO 2 fibers are largely influenced by the calcination temperature.展开更多
文摘采用电子束蒸镀方法在Si(100)衬底上沉积了ZnO:Al(ZAO)薄膜.在氧气气氛下对ZnO:Al薄膜进行了退火处理,退火温度的范围为400～800℃.X射线衍射(XRD)图样表明所制备的ZnO:Al薄膜具有六方结构,为c轴(002)择优取向的多晶薄膜.用Van der Pauw法测量了ZAO薄膜的电学特性,结果显示其电导率在500℃达到最大值.测量了ZAO薄膜的室温微区光致发光和变温发光光谱,观测到了ZnO自由激子、束缚在中性施主中心(D0)上的束缚激子以及束缚在离化施主中心(D+0)上的束缚激子发射.
文摘Thin PVA/nickel acetate composite fibers were prepared by using sol-gel processing and electrospinning technique. After the calcination of the above precursor fibers,NiO nanofibres with a diameter of 50—100 nm could be successfully obtained. The fibers were characterized by TG-DTA, FT-IR,WAXD and SEM respectively. The results showed that the crystalline phase and morphology of NiO fibres were greatly influenced by the calcination temperature. [WT5HZ]
文摘Thin PVA/zirconium oxychloride composite fibers were prepared by using sol-gel processing and electrospinning technique. After calcining the above precursor fibers,ZrO 2 nanofibers with a diameter of 70—100 nm were successfully obtained. The ZrO 2 nanofibers were characterized by XRD,TG-DTA,FTIR,and SEM,respectively. The results show that the crystallinity and morphology of ZrO 2 fibers are largely influenced by the calcination temperature.
