title: High-throughput heterogeneous integration of diverse nanomaterials on a single chip for sensing applications.
abstract: There is a large variety of nanomaterials each with unique electronic, optical and sensing properties. However, there is currently no paradigm for integration of different nanomaterials on a single chip in a low-cost high-throughput manner. We present a high throughput integration approach based on spatially controlled dielectrophoresis executed sequentially for each nanomaterial type to realize a scalable array of individually addressable assemblies of graphene, carbon nanotubes, metal oxide nanowires and conductive polymers on a single chip. This is a first time where such a diversity of nanomaterials has been assembled on the same layer in a single chip. The resolution of assembly can range from mesoscale to microscale and is limited only by the size and spacing of the underlying electrodes on chip used for assembly. While many applications are possible, the utility of such an array is demonstrated with an example application of a chemical sensor array for detection of volatile organic compounds below parts-per-million sensitivity.
authors.affiliation: Nanolab, Department of Electrical and Computer Engineering, Tufts University, Medford, MA, United States of America.
authors.forename: Samuel
authors.initials: S
authors.lastname: MacNaughton
authors.affiliation: Department of Chemical Engineering, University of Massachusetts Lowell, Lowell, Massachusetts, United States of America.
authors.forename: Srikanth
authors.initials: S
authors.lastname: Ammu
authors.affiliation: Department of Chemical Engineering, University of Massachusetts Lowell, Lowell, Massachusetts, United States of America.
authors.forename: Sanjeev K
authors.initials: SK
authors.lastname: Manohar
authors.affiliation: Nanolab, Department of Electrical and Computer Engineering, Tufts University, Medford, MA, United States of America.
authors.forename: Sameer
authors.initials: S
authors.lastname: Sonkusale
mesh_terms: D001681:Biological Assay; D004553:Electric Conductivity; D004566:Electrodes; D004581:Electronics; D004784:Environmental Monitoring; D004867:Equipment Design; D005740:Gases; D006108:Graphite / Q000737:chemistry; D008855:Microscopy, Electron, Scanning; D049329:Nanostructures / Q000737:chemistry*; D037742:Nanotubes, Carbon / Q000737:chemistry; D053770:Nanowires / Q000737:chemistry; D055095:Optics and Photonics; D011108:Polymers / Q000737:chemistry; D055549:Volatile Organic Compounds
chemical_list: D005740:Gases; D037742:Nanotubes, Carbon; D011108:Polymers; D055549:Volatile Organic Compounds; D006108:Graphite