改良的热板法制备氧化钼纳米片  

Modified Hot Plate Method for Synthesizing MoO3 Nanoplates

作　　者：张驰 魏伟 潘佳琪 龚忠苗 陈益钢 崔义 Chi Zhang;Wei Wei;Jia-qi Pan;Zhong-miao Gong;Yi-gang Chen;Yi Cui(College of Materials Science and Engineering,Shanghai University,Shanghai 200444,China;Vacuum Interconnected Nanotech Workstation,Suzhou Institute of Nano-Tech and Nano-Bionics,Chinese Academy of Sciences,Suzhou 215123,China)

机构地区：[1]上海大学材料科学与工程学院,上海200444 [2]中国科学院苏州纳米技术与纳米仿生研究所,纳米真空互联实验站,苏州215123

出　　处：《Chinese Journal of Chemical Physics》2023年第2期242-248,I0052,I0053,I0055,共10页化学物理学报（英文）

基　　金：This work was supported by the National Natural Science Foundation of China(No.21872169 and No.91845109);the Natural Science Foundation of Jiangsu Province(No.BK20200257).

摘　　要：三氧化钼(MoO_(3))具有层状结构,在电子和光电子器件领域有着良好的应用前景.本文报道了一种改良的热板法来生长大尺寸的MoO_(3)晶体.这种方法能够在常压气氛下实现快速生长MoO_(3),具有低成本和操作简单等优点.通过改变源温度和衬底种类,可以很好地控制MoO_(3)晶体的生长速率和形貌.同时,通过光学显微镜、原子力显微镜、X射线衍射、拉曼光谱和扫描近场光学显微镜等手段,探究了其结构和物理性质.结果表明,MoO_(3)晶体在具有大尺寸的同时还表现出良好的结晶度.此外,还观察到所制备的MoO_(3)晶面上的双曲声子极化子现象,这一现象有望推动其在纳米电子和纳米光子器件中的应用.Molybdenum trioxide(MoO_(3))with layered structures adopts exotic physical features,which has evoked an extensive interest in electronic and photoelectronic devices.Here,we report a low-cost,simplehandle,atmospheric-pressure,and rapid-synthesis technique for growing large-scale MoO_(3) crystals,i.e.,a modified hot plate method.The growth rate and morphology of the MoO_(3) crystals were well controlled by changing source temperatures and substrates.Complementary measurements,including optical microscope,atomic force microscope,X-ray diffraction,Raman spectroscope,and scanning near-field optical microscope,were used to investigate the structural and physical properties.The results reveal that large-scale MoO_(3) crystals with well-defined crystallinity have been obtained.Meanwhile,surface hyperbolic phonon polaritons on as-prepared MoO_(3) crystal planes have also been observed,which may provide an attractive insight into nanoelectronic and nanophotonic devices.

关 键 词：氧化钼 改良热板法 生长调控 双曲声子极化子 

分 类 号：TQ136.12[化学工程—无机化工] TB383.1[一般工业技术—材料科学与工程]