The structure and properties of phthalocyanine films grown by the molecular-beam epitaxy technique. II. Ultraviolet/visible spectroscopic study

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Abstract
Ultrathin films of F‐bridged Al‐phthalocyanine polymer, (AlPcF) n , grown by the molecular‐beam epitaxy technique show unusual spectroscopicproperties which can be described by the possibility of pseudomorphic layer formation at the thin‐film/substrate interface. A change in the electronic structure of the molecules of this layer is presumed to occur. The existence of the layer is directly related to the degree of epitaxy.