page_title: Perylenetetracarboxylic dianhydride
section_title: Self-assembly and films
hierarchical_section_title: Perylenetetracarboxylic dianhydride / Structure / Self-assembly and films
caption_attribution_description: STM constant-current image (I=30 pA, Vb=−1.5 V) of PTCDA clusters on NaCl(2 ML)/Ag(111) formed after room temperature annealing
context_page_description: Perylenetetracarboxylic dianhydride is an organic dye molecule and an organic semiconductor. It is used as a precursor to a class of molecules known as Rylene dyes, which are useful as pigments and dyes. It is a dark red solid with low solubility in aromatic solvents. The compound has attracted much interest as an organic semiconductor.
caption: Self-assembly of PTCDA molecules on NaCl, scanning tunneling microscopy image.[4]
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