A study of the AgBr(111) and AgBr(100) surface by means of atomic force microscopy

For the first time, atomic force microscope measurements on the (111) and (100) surfaces of AgBr crystals are reported. We could image steps of varying sizes ranging from 0.9 nm to several nm. The lateral orientation of these steps could be determined by comparison with x‐ray measurements. On the (100) surface, steps with the low index orientations 〈011〉 and 〈011〉 were observed. On the (111), surface steps were mainly oriented in the 〈121〉 and 〈110〉 directions. The most evident difference between these surfaces was that on the (111) surface no crossing steps occurred. This observation will be discussed in relation to the adsorption of dye aggregates on these crystals, which is of great importance for photographic emulsion technology.

[1]  J. F. Hamilton.  The silver halide photographic process , 1988 .

[2]  W. Knoll,et al.  The crystalline structure of two-dimensional cyanine dye single crystals as revealed by electron diffraction , 1988 .

[3]  C. Quate,et al.  Atomic resolution with the atomic force microscope on conductors and nonconductors , 1988 .

[4]  P. Hansma,et al.  Atomic resolution atomic force microscopy of graphite and the ‘‘native oxide’’ on silicon , 1988 .

[5]  R. Baetzold,et al.  A computational approach to silver halide surfaces , 1988 .

[6]  G. Binnig,et al.  Atomic resolution with atomic force microscope , 1987 .

[7]  Hemantha K. Wickramasinghe,et al.  Atomic force microscope–force mapping and profiling on a sub 100‐Å scale , 1987 .

[8]  Dieter W. Pohl,et al.  Some design criteria in scanning tunneling microscopy , 1986, IBM J. Res. Dev..

[9]  H. Eicke.  Modern Trends of Colloid Science in Chemistry and Biology , 1985 .

[10]  H. Huber,et al.  Thermal disorder of silver bromide studied by 100 keV proton channeling , 1976 .

[11]  P. Junod,et al.  Growth and characterization of AgBr single crystals , 1971 .

[12]  J. F. Hamilton,et al.  A model for the AgBr (111) surface, based on the symmetry of nucleation sites for evaporated metal , 1970 .

[13]  H. Kanzaki.  Electron Traps in Silver Chloride , 1955 .

[14]  Nevill Mott,et al.  The Theory of the Photolysis of Silver Bromide and the Photographic Latent Image , 1938 .

[15]  Harry Heinzelmann,et al.  Comparative study of lithium fluoride and graphite by atomic force microscopy (AFM) , 1870 .