Abstract
Thin films of the charge transfer complex of tetrathiofulvalene tetracyanoquinodimethane (TTF-TCNQ) deposited on KC1 and KBr were studied by atomic force microscopy (AFM). Structures corresponding to the molecular arrangement of the crystallographic ab-plane were observed in the molecular-scale AFM images. Large-scale imaging (15×15 μm) revealed that the films consist of rectangular islands whose longer sides (corresponding to the highly conductive b-axis) orient in the [110] or [1̄10] direction of the KC1 and KBr(001) surfaces. A small number of islands rotated 32°from the [110] direction were also observed on the KBr substrate. The arrangement of these islands can be explained by considering the adsorption of a TCNQ molecule to the metastable state.
Original language | English |
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Pages (from-to) | 1892-1894 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 62 |
Issue number | 16 |
DOIs | |
Publication status | Published - 1993 |
Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)