ELECTROPHOTOGRAPHIC PRINTER PHOTOCONDUCTOR BASED ON LIGAND-FREE SEMICONDUCTOR QUANTUM DOTS

摘要

A photoconductor and method of forming a photoconductor for an electrophotographic device comprising forming a charge generation material comprising a plurality of quantum dots, and forming an active region comprising one or more photoconductor layers comprising the charge generation material including the surface modified quantum dots.

主权项

1. A method of forming a QDPC material comprising surface modified quantum dots (QDs) for an electrophotographic device comprising:
replacing a first ligand capping layer of QDs with a second ligand capping layer through chemical reflux on QDs in an exchange medium to create partially ligand-exchanged QDs, wherein ligands in the first ligand cappying layer are non-volatile ligands and ligands in the second ligand capping layer are semi-volatile ligands and wherein the exchange medium is a semi-volatile liquid; removing free non-volatile ligands; storing the partially ligand-exchanged QDs in the exchange medium for a period of time to achieve a pre-determined exchange level; and removing additional free non-volatile ligands.