| Original Articles |
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Effect of Temperature and Ionic Concentration on Self-Assembled Films of Chicago Sky Blue |
| D. Dey, M. N. Islam, S. A. Hussain, D. Bhattacharjee |
| Department of Physics, Tripura University, Suryamaninagar-799130, Tripura, India |
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| Cite this article: |
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D. Dey, M. N. Islam, S. A. Hussain et al 2008 Chin. Phys. Lett. 25 3732-3734 |
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Abstract We employ a layer-by-layer adsorption technique for deposition on solid substrates of polyionic films of Chicago Sky Blue. Film growth was significant with the increasing number of layers. Photochemical properties of these films are investigated for different ionic concentrations. A significant blue shift is observed with the increasing ionic strength of the solution, suggesting the formation of aggregation. Temperature effect studies show some preferable reorientation of molecules in the film during cooling process. Most remarkable observation is that the absorption intensity is the highest for a particular degree of inclination. Deposition time is fixed at 15min because adsorption kinetics results show saturation after 15min.
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| Keywords:
68.37.-d
68.18.-g
68.47.Pe
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Received: 17 April 2008
Published: 26 September 2008
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| PACS: |
68.37.-d
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(Microscopy of surfaces, interfaces, and thin films)
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68.18.-g
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(Langmuir-Blodgett films on liquids)
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68.47.Pe
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(Langmuir-Blodgett films on solids; polymers on surfaces; biological molecules on surfaces)
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