Direct observation of an organic superlattice structure
- 27 September 1993
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 71 (13), 2098-2101
- https://doi.org/10.1103/physrevlett.71.2098
Abstract
Organic multilayered thin films of copper phthalocyanine (CuPc) and naphthalene-1,4,5,8-tetracarboxylic-1,8:4,5-dianhydride were fabricated by an organic molecular beam deposition technique. The analyses by an x-ray photoelectron spectroscopy and a transmission electron microscopy directly revealed an alternating layer-by-layer structure, with a few nanometers thickness for each layer. The optical absorption spectra at the Q band for CuPc layers indicates an extraordinary electronic state in an organic superlattice structure.Keywords
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