表界面化學(xué)反應(yīng)與材料的制備-雜化材料與自組裝(文件)
【正文】 incidence, a characteristic 6spot diffraction pattern with weak Kossel rings (enhanced in the photo) remained unchanged while scanning a 100mmdiameter laser spot over centimetrescale regions of the opal. These 6 spots arise from diffraction off {110} planes of a singlecrystal . lattice with 1% stacking faults. Figure13 Comparison of optical results with calculations. a, Experimental (red) and calculated (black) transmission spectra for incidence normal to the (111) plane of a 7layer planar opal made from 855nm silica spheres with a refractive index of . The frequency is plotted in units of c/a, where c is the speed of light and a is the lattice constant. b, The photonic band diagram calculated along the [111] direction for the same parameters used in a. c, The photonic band diagram calculated for the Si inverted opal measured in d and e. d, Experimental reflection spectra for amorphous Si inverted opals measured normal to the (111) plane. Data from two samples, with a equal to 1,070 nm (red) and 841 nm (blue), are bined. The wavelength scale corresponds to the 1,070 nm sample. The best theoretical 198。 ) reveals that the pores of 3 nm2 (with van der Waals volume excluded) are separated by nm from the neighboring ones. Water molecules are not shown for are shown in red. (B) CHQ monomer. (C and D) Top and side views, respectively, of a silver nanowire inside a CHQ nanotubetemplate. The solventaccessible surface model in (C) and the stick model in（ D） ?Fig. 2. HREM images and EDS elemental analysis of the nanowires. (A)Lowmagnification image of the silver nanowires formed in CHQ nanotube templates (scale bar, 100 nm). (B) EDS elemental analysis indicating that the only metal present is silver. La1 and Lb1 are the transitions responsible for the xray fluorescence lines of silver. (C) Magnified image of (A) showing that 1D structures are unidirectional and monodispersed (scale bar, 2 nm). (D) Magnified image of (C) at atomic resolution showing coherent orientations of silver atoms in different wires. The white arrow indicates the wire direction, [110] (scale bar, 1 nm). (E) Image of the nanowire arrays piled over each other (scale bar, 5 nm). Fig. 4 Structural analysis of the singlecrystalline primitive silver nanowire arrays. (A) 3D model of the 4 3 4 silver nanowire arrays. The z axis corresponds to the [110] direction of the fcc lattice. (B) Zone axis notations (in italics) in terms of the nanowire array reference basis. The [100], [010], and [001] directions in this wire array reference basis correspond to [001], [110], and [110] of the fcc lattice, respectively. (C) Top and side views of a primitive silver nanowire model. (D) Selected area diffraction pattern for zone [212] (scale bar, 2 nm21) and simulated pattern (inset). (E) HREM image (scale bar, 1 nm) and simulated image (inset。 c) secondary growth from the patterned nanorods。 sample thickness 5 17 nm, defocus 5 80 nm) corresponding to (G). (I) Nanowire array orientation corresponding to (H). (J) HREM image of a nanotube bundle with nanowires ins
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