K ey w ords :ZnO ;Raman Spectrum ;polar semiconductors ;nano 2scale materials ZnO 是Ⅱ-Ⅵ族半导体,在室温下能隙为3.36eV 。因其良好的光学、电学、压光、压电性质,及强化学稳定性和高熔点,广泛应用于各种光电学系统,如光散射仪器、光探测器、场致发光仪器、非线性光学仪器、太阳能电池、透明传导层、体...
拉曼光谱法研究纳米结构多孔Z nO 微球的合成机理 邵铮铮,张学骜,王晓峰,常胜利 国防科技大学理学院物质与材料科学实验中心,湖南长沙 410073 摘 要 利用拉曼光谱方法,对柠檬酸钠辅助水热合成纳米结构多孔ZnO 微球的机理进行了研究。样品的 拉曼光谱特征显示,多孔ZnO 微球中存在Zn 2柠檬酸配合物;分析表明反应溶液中...
Raman spectrumZinc oxideMicrometer-sized tubular ZnO crystal was fabricated by a hydrothermal method, and was characterized by scanning electron microscopy (SEM). Back-scattering micro-Raman spectrum was applied to investigate the vibrational modes of the microtubes with the comparison to that of ZnO ...
▲Fig. 1.(a) XRD patterns and (b) Raman spectra of the fresh CZA-xMn catalysts. ▲Fig. 2.(a–d) The elemental mapping of CZA-2%Mn catalyst. Cu (b), Al (c), Zn (d), Mn (e), O (f), Scale ba...
In this work, zinc oxide nanoparticles (ZnO-NPs) were synthesized using a chemical route. The ZnO obtained was characterized using infrared and Raman spectroscopy, X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results indicated that the synthesized ZnO had a unique crystal ...
Keywords:zincoxide;whisker;X—raydiffraction;Ramanspectrum;polarizingmicroscope 由于ZnO在室温下具有宽禁带(3.37eV)和较强的激子结合能(60meV)⋯,并可在紫外波段受激 发光,因此被认为是GaN的替代材料.在生长一维纳米结构的ZnO方法中,一般通过气-液-固态 ...
Keywords:ZnO;RamanSpectrum;polarsemiconductors;nano2scalematerials ZnO是U-W族半导体,在室温下能隙为3.36eV。因其良好的光学、电学、压光、压电性质,及强化学稳定性和高熔点,广泛应用于各种光电学系统如光散射仪器、光探测器、场致发光仪器、非线性光学仪器、太阳能电池、透明传导层、体声波仪器、表面声波仪器等。
The Raman and infrared spectra of the Zn-rich powder are shown in Fig. 4. In the Raman spectrum, the peaks at ∼241,∼286, ∼398, and ∼485 cm−1 correspond to Raman active modes of Fe3O4 [73], ZnFe2O4 [73], ZnCl2–KCl [74], and ZnO [75]. In the infrared spectru...
关键词: Atomic layer deposition; Atoms; Blue shift; II-VI semiconductors; Metallic films; Optical films; Oxide minerals; Thin films; Zinc oxide; Diethyl zinc; Optical phonons; Preferential growth; Raman peak; Raman scattering spectroscopy; Vibrational properties; X-ray diffraction spectrum; ZnO thin...
The typical Raman spectrum of the GO layers is shown in Figure 2a. Two most prominent peaks appear at 1590 cm21 and 1350 cm21 which are known as the G and D peaks, respectively. The G peak corresponds to the E2g phonon at the Brillouin zone center. In pristine graphene34, it appears...