Carbon nanotubes / magnesium oxysulfates (MOS) nanocomposite was prepared under different hydrothermal conditions. The samples were characterized by SEM, TEM, XRD and TG. The results showed that carbon nanotubes and t...Carbon nanotubes / magnesium oxysulfates (MOS) nanocomposite was prepared under different hydrothermal conditions. The samples were characterized by SEM, TEM, XRD and TG. The results showed that carbon nanotubes and the magnesium oxysulfates could form nanocomposite under the hydrothermal reaction and the morphology of the MOS compound coated on the carbon nanotubes varied with different reaction conditions.展开更多
Carbon nanotube/zinc oxide(CNT/ZnO) nanocomposites were prepared by the hydrothermal reaction in view of potential photocatalytic applications for these nanocomposites. The study by SEM, TEM and XRD shows that homogen...Carbon nanotube/zinc oxide(CNT/ZnO) nanocomposites were prepared by the hydrothermal reaction in view of potential photocatalytic applications for these nanocomposites. The study by SEM, TEM and XRD shows that homogeneous CNT/ZnO nanocomposites were synthesized successfully and the morphology of the composites was controllable by the adjustment of pH value during the hydrothermal reaction.展开更多
报道了用离子注入方法和组合技术制备的 Al Ga As/Ga As单量子阱多波长发光集成芯片 ,利用量子阱界面混合原理在同一块 Ga As衬底片上获得了 2 0多个发光波长从 787~ 72 4nm的 Ga As量子阱发光单元 ,研究了不同剂量的 As和 H离子分别...报道了用离子注入方法和组合技术制备的 Al Ga As/Ga As单量子阱多波长发光集成芯片 ,利用量子阱界面混合原理在同一块 Ga As衬底片上获得了 2 0多个发光波长从 787~ 72 4nm的 Ga As量子阱发光单元 ,研究了不同剂量的 As和 H离子分别单独注入和迭加组合注入对量子阱发光峰位的影响 ,采用了组合技术和离子注入技术大大简化了制备工艺过程 ,这种发光芯片对于波分复用器件和建立离子注入数据库等方面都有重要的意义 .展开更多
用分子束外延系统 (MBE)生长了 Ga As/ Al Ga As非对称耦合双量子阱 (ACDQW) ,用组合离子注入的方法 ,在同一块衬底上获得了不同注入离子 As+ 、 H+ 和不同注入剂量的 Ga As/ Al Ga As非对称耦合双量子阱单元 ,在未经快速热退火的条件...用分子束外延系统 (MBE)生长了 Ga As/ Al Ga As非对称耦合双量子阱 (ACDQW) ,用组合离子注入的方法 ,在同一块衬底上获得了不同注入离子 As+ 、 H+ 和不同注入剂量的 Ga As/ Al Ga As非对称耦合双量子阱单元 ,在未经快速热退火的条件下 ,于常温下测量了光调制反射光谱 ,发现各单元的子带间跃迁能量最大变化范围可达80 me V .展开更多
用分子束外延系统生长了 Ga As/ Al Ga As非对称耦合双量子阱 (ACDQW) ,用组合注入的方法 ,在同一块衬底上获得了不同注入离子和不同注入剂量的耦合量子阱单元 ,没有经过快速热退火过程 ,在常温下测量了不同单元的显微光荧光谱 ,发现子...用分子束外延系统生长了 Ga As/ Al Ga As非对称耦合双量子阱 (ACDQW) ,用组合注入的方法 ,在同一块衬底上获得了不同注入离子和不同注入剂量的耦合量子阱单元 ,没有经过快速热退火过程 ,在常温下测量了不同单元的显微光荧光谱 ,发现子带间跃迁能量最大变化范围接近 10 0 me V。展开更多
文摘Carbon nanotubes / magnesium oxysulfates (MOS) nanocomposite was prepared under different hydrothermal conditions. The samples were characterized by SEM, TEM, XRD and TG. The results showed that carbon nanotubes and the magnesium oxysulfates could form nanocomposite under the hydrothermal reaction and the morphology of the MOS compound coated on the carbon nanotubes varied with different reaction conditions.
文摘Carbon nanotube/zinc oxide(CNT/ZnO) nanocomposites were prepared by the hydrothermal reaction in view of potential photocatalytic applications for these nanocomposites. The study by SEM, TEM and XRD shows that homogeneous CNT/ZnO nanocomposites were synthesized successfully and the morphology of the composites was controllable by the adjustment of pH value during the hydrothermal reaction.
文摘用分子束外延系统 (MBE)生长了 Ga As/ Al Ga As非对称耦合双量子阱 (ACDQW) ,用组合离子注入的方法 ,在同一块衬底上获得了不同注入离子 As+ 、 H+ 和不同注入剂量的 Ga As/ Al Ga As非对称耦合双量子阱单元 ,在未经快速热退火的条件下 ,于常温下测量了光调制反射光谱 ,发现各单元的子带间跃迁能量最大变化范围可达80 me V .
文摘用分子束外延系统生长了 Ga As/ Al Ga As非对称耦合双量子阱 (ACDQW) ,用组合注入的方法 ,在同一块衬底上获得了不同注入离子和不同注入剂量的耦合量子阱单元 ,没有经过快速热退火过程 ,在常温下测量了不同单元的显微光荧光谱 ,发现子带间跃迁能量最大变化范围接近 10 0 me V。