Orientation-controlled molecule-by-molecule polymer wire growth by the carrier-gas-type organic chemical vapor deposition and the molecular layer deposition

The carrier-gas-type organic chemical vapor deposition (CG-OCVD) and the molecular layer deposition were developed for orientation-controlled molecule-by-molecule growth of conjugated polymer wires on a surface with self-assembled monolayer (SAM), which provides a feasible way to construct self-organized three-dimensional polymer wire networks. It was also found that, in CG-OCVD, growth saturation occurs for a substrate without SAM while no growth saturation for a substrate with SAM. The analysis of results in terms of reaction site densities on surfaces suggests vertical wire growth on a substrate with SAM and horizontal wire growth on a substrate without SAM.