Highly ordered alignment of conducting nano-crystallites on organic semiconductor single crystal surfaces
Tomohiro Mikasaa, YukihiroTakahashi, Kei Hayakawa, Seiya Yokokura, Hiroyuki Hasegawa, Jun Harada, Tamotsu Inabe
Thin Films Solids
A conducting thin layer of aligned fibrous nano-crystallites of tetrathiafulvalene–7,7,8,8,-tetracyanoquinodimethane (TTF–TCNQ) is fabricated directly on semiconducting organic crystals under ambient conditions. The widths of the crystallites are 50–100 nm. Their growth direction is governed by the direction of the intermolecular charge transfer interactions in the substrate crystal. The carrier transport in the film is metallic between 150 K and 300 K, reflecting the uniform alignment of the TTF–TCNQ nano-crystallites on the substrate crystal.
Probe Raman, Organic solids, Crystal surfaces, TTF–TCNQ, Nano-crystallites