Título:
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Nanomechanical properties of molecular organic thin films
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Autor/a:
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Caro, J.; Fraxedas i Calduch, Jordi; Gorostiza Langa, Pablo Ignacio; Sanz Carrasco, Fausto
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Otros autores:
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Universitat de Barcelona |
Abstract:
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Using atomic force microscopy we have studied the nanomechanical response to nanoindentations of surfaces of highly oriented molecular organic thin films (thickness¿1000¿nm). The Young¿s modulus E can be estimated from the elastic deformation using Hertzian mechanics. For the quasi-one-dimensional metal tetrathiafulvalene tetracyanoquinodimethane E~20¿GPa and for the ¿ phase of the p-nitrophenyl nitronyl nitroxide radical E~2GPa. Above a few GPa, the surfaces deform plastically as evidenced by discrete discontinuities in the indentation curves associated to molecular layers being expelled by the penetrating tip. |
Materia(s):
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-Pel·lícules fines -Microscòpia de força atòmica -Elasticitat -Nanotecnologia -Cristalls -Thin films -Atomic force microscopy -Elasticity -Nanotechnology -Crystals |
Derechos:
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(c) American Institute of Physics, 2001
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Tipo de documento:
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Artículo Artículo - Versión publicada |
Editor:
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American Institute of Physics
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