Istituto dei materiali per l'elettronica ed il magnetismo     
Nardi M., Verucchi R., Tubino R., Iannotta S. Activation and control of organolanthanide synthesis by supersonic molecular beams: Erbium-porphyrin test case. In: Physical Review B, vol. 79 (12) article n. 125404. American Physical Society, 2009.
Hybrid Er-Tetraphenylporphyrin (Er-TPP) thin films have been synthesized on a SiO2/Si(100) substrate in a co-deposition approach that combines an H2TPP seeded supersonic molecular beam and an effusive molecular beam of the metal. As confirmed by detailed surface electron spectroscopies, our experiments in ultrahigh vacuum demonstrate the ability to produce and control the chemical reactivity between the two species on the surface of the growing film. This is achieved by fully exploiting the unique features of the supersonic molecular-beam deposition approach in a co-deposition scheme that we show to be ideally suited to induce and control chemical reactivity. We believe that the ability to synthesize organolanthanides films, showing a thickness that is suitable for applications in optoelectronics, could pave the way to a class of devices based on active materials chemically engineered via this solid-state/vapor phase approach in vacuum.
URL: http://link.aps.org/doi/10.1103/PhysRevB.79.125404
DOI: 10.1103/PhysRevB.79.125404
Subject chemical reactions
electron spectra
molecular beam epitaxial growth
organic compounds
organic-inorganic hybrid materials
vacuum deposition

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