Deterministic transfer of thin carbon nanotube film

摘要

Although successfully implemented for optoelectronic devices of two-dimensional materials,deterministic transfer for thin single-walled carbon nanotube(SWNT)film has not been realized.Herein,we report a transfer method of few hundreds nanometer-thick SWNT film to a desired prepatterned substrate position with few micrometer precision.This method comprises poly(methyl methacrylate)(PMMA)-coated SWNT film,creating surface anisotropy on both sides for SWNT film transfer,and two sets of translators manipulating the film to desired position and angle.Especially,adsorption and desorption of PMMA-coated SWNT film by each translator were modulated by use of interfacial water which not only promotes PMMA side to the transient sample loader via water capillary and releases the final substrate with capillary assisted sliding.Successful transfer of thin SWNT film with few tens of micrometer precision was achieved and will be beneficial for the preparation of high-end optoelectronic devices.