Abstract: The invention relates to an apparatus and a method for depositing one or more thin layers of polymeric para-xylylene. Said apparatus comprises a heated evaporator (1) used for evaporating a solid or liquid starting material. A supply pipe (11) for a carrier gas extends into said evaporator (1). The carrier gas conducts the evaporated starting material, in particular the evaporated polymer, into a pyrolysis chamber (2) which is located downstream of the evaporator (1) and in which the starting material is decomposed. The apparatus further comprises a deposition chamber (8) which is located downstream of the decomposition chamber (2) and encompasses a gas inlet (3) through which the decomposed product conducted by the carrier gas is admitted, a susceptor (4) which has a supporting surface (4?) opposite the gas inlet (3) in order to support a substrate (7) that is to be coated with the polymerized decomposed product, and a gas outlet (5).

Abstract: The invention relates to a device for the vaporisation of condensed (solid or liquid) materials, in particular, of starting materials for OLED production, comprising a container (1), for housing the material with a gas supply line (2) and a gas exhaust line (3). A number of inserts (4) for housing the material are arranged in the container (1) which have an individual flow thereover, whereby the inserts (4) are arranged one over the other in the vertical direction and comprise recesses (5) for housing the material in the horizontal direction over which a flow is possible. Several gas flows may flow in parallel over several inserts.