On introducing a thin sheet of mica (thickness 12×10−7 cm) in path of one of the interfering beams (λvacuum=600nm) in Young's double-slit experiment, the central fringe is shifted through a distance equal to the spacing between successive bright fringes. Calculate the ...
Single crystal films of C60 of different thickness values have been deposited on mica substrates by resistance evaporation. Electron diffraction and high resolution microscopy have been used to assess the orientational ordering and the nature of the defects present in these face-centered cubic films ...
micadeposition rateCthin films were thermally evaporated onto mica(001) substrates at a temperature of 200C and a deposition rate of 0.5 a s. The 2500 a thick films were studied using high-voltage transmission electron microscopy (HVTEM) and electron diffraction. Oriented growth of Con mica ...
Thin C 60 films grown on mica by hot wall epitaxy exhibit several structural properties which are strongly correlated with the total layer thickness. Atomic force microscope images as well as reciprocal space maps demonstrate that there is a change in the growth mode of C 60 films exceeding a ...
Cryo-electron microscopy (cryo-EM) visualizes the atomic structure of macromolecules that are embedded in vitrified thin ice at their close-to-native state. However, the homogeneity of ice thickness, a key factor to ensure high image quality, is poorly c
The collages themselves were done as original art, each 4 x 6″ centered on a larger sheet of Rives BFK. There are 26 of these. All are reduced to miniature format, and a graphic letter in an interesting font completes the image. Each of these little cards can be removed from the book...
A young woman picks up a book left behind by a stranger. Inside it are his margin notes, which reveal a reader entranced by the story and by its mysterious author. She responds with notes of her own, leaving the book for the stranger, and so begins an unlikely conversation that plunges...
To avoid introducing additional impurities to the highly adsorbing GO sheets, we did not use a density gradient ultracentrifugation for the separation s tep39. Moreover, the gradient making medium that is often used for this method such as sucrose39 can result in the reduction of GO....
The structural and optical properties of the ZnO thin films grown on mica substrates for different precursor concentrations were investigated. The surface morphologies of all the samples indicated that they consisted of granular structures with spherical nano-sized crystallites. The thickness of the ZnO...
However, for the β-lactoglobulin immunosensors, the optimum signals were observed at intermediate GO sheet size. GO sheet size could enhance or inhibit the sensitivity of the graphene-based electrochemical sensors. Our results demonstrate that controlling the size of GO sheets may have a profound ...