Rapid and high-resolution patterning of microstructure and composition in organic semiconductors using 'molecular gates'.

ABSTRACT: Photolithography has been a major enabling tool for miniaturisation of silicon devices that underpinned the electronics revolution. Rapid, high-resolution patterning of key material characteristics would, similarly, accelerate the advent of molecular electronics and photonics. Here we advance a versatile approach employing local diffusion of functional small-molecular compounds through a solution-processed 'molecular gate' interlayer. Diffusion is activated using laser light or solvent vapour jets-a process that can be finely modulated down to molecule-on-demand deposition precision with almost photolithographic resolution (<5 μm) and speeds (3 mm s^-1). Examples of principal pattern types are presented including molecular conformation for integrated photonics; chain orientation

SUBMITTER: Perevedentsev A 

PROVIDER: S-EPMC7367850 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature