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Rev Sci Instrum. 2013 Jul;84(7):074101. doi: 10.1063/1.4811662.

Automated setup for spray assisted layer-by-layer deposition.

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Physikalische Chemie, TU Dresden, Bergstrasse 66b, 01062 Dresden, Germany.


The design for a setup allowing the layer-by-layer (LbL) assembly of thin films consisting of various colloidal materials is presented. The proposed system utilizes the spray-assisted LbL approach and is capable of autonomously producing films. It provides advantages to existing LbL procedures in terms of process speed and applicability. The setup offers several features that are advantageous for routine operation like an actuated sample holder, stainless steel spraying nozzles, or an optical liquid detection system. The applicability is demonstrated by the preparation of films containing semiconductor nanoparticles, namely, CdSe∕CdS quantum dots and a polyelectolyte. The films of this type are of potential interest for applications in optoelectronic devices such as light-emitting diodes or solar cells.


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