Direct-Write Optical Patterning of P3HT Films Beyond the Diffraction Limit.

Jacobs, Ian E; Aasen, Erik W; Nowak, Derek; Li, Jun; Morrison, William; Roehling, John D; Augustine, Matthew P; Moulé, Adam J · Adv Mater · 2017

basic_science · Level V

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Abstract

Doping-induced solubility control is a patterning technique for semiconducting polymers, which utilizes the reduction in polymer solubility upon p-type doping to provide direct, optical control of film topography and doping level. In situ direct-write patterning and imaging are demonstrated, revealing sub-diffraction-limited topographic features. Photoinduced force microscopy shows that doping level can be optically modulated with similar resolution.