SOLUTION-BASED DEPOSITION METHOD FOR PREPARING SEMICONDUCTING THIN FILMS VIA DISPERSED PARTICLE SELF-ASSEMBLY AT A LIQUID-LIQUID INTERFACE

摘要

The present invention relates to a method for preparing a semiconducting thin film comprising the steps of (1) providing a liquid-liquid interface; (2) providing at least one layered semiconductor material or its precursor(s) in the form of particles in a solvent in the form of a dispersion; (3) injecting the dispersion at the liquid-liquid interface, in order to obtain an assembly of semiconductor/semiconductor precursor particles; (4) bringing the assembly of into contact with a flexible substrate; and (5) applying a surface pressure to the dispersion to obtain a particle film of semiconductor/semiconductor precursor on the substrate, wherein the first solvent has a higher density than the second solvent. The present invention also relates to a device for carrying out the method.