Engineering complex supramolecular two-dimensional (2D) networks based on perylene derivatives is attracting considerable interest as highly ordered functional materials for applications in nanotechnology and organic electronic devices.These molecules are promising organic building block for photovoltaic application due to there outstanding chemical,thermal and photostability.The challenge consists in tailoring the ordering of these molecules mixed with one or more molecular species into specific architectures over an extended length scale with molecular precision to enhance devices performances.