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Direct-Write Optical Patterning of P3HT Films Beyond the Diffraction Limit
Jacobs, IE., Aasen, EW., Nowak, D., Li, J., Morrison, W., Roehling, JD., Augustine, MP., Moulé, AJ.
Adv Mater
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.