Research Topics
| Mark C HersamSummaryAffiliation: Northwestern University Country: USA Publications
| Collaborators
|
Detail Information
Publications
Carbon nanomaterials for electronics, optoelectronics, photovoltaics, and sensingDeep Jariwala
Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
Chem Soc Rev 42:2824-60. 2013..In this manner, this article will provide guidance to future application developers and also articulate the remaining research challenges confronting this field...- Progress towards monodisperse single-walled carbon nanotubesMark C Hersam
Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208 3108, USA
Nat Nanotechnol 3:387-94. 2008.... 
Scanning tunneling microscopy study of one-dimensional o-phthalaldehyde chain reactions on the Si(100)-2 x 1:H surfaceMichael A Walsh
Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208 3108, USA
Chem Commun (Camb) 46:1153-5. 2010....- Monitoring and analyzing nonlinear dynamics in atomic force microscopyMark C Hersam
Materials Science and Engineering Department, Northwestern University, 2220 Campus Drive, Evanston, IL 60208-3108, USA
Small 2:1122-4. 2006 - Nanofabrication of heteromolecular organic nanostructures on epitaxial graphene via room temperature feedback-controlled lithographyQing Hua Wang
Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA
Nano Lett 11:589-93. 2011..The generality of this FCL-based nanofabrication procedure suggests its applicability to a wide range of fundamental studies and prototype device fabrication on chemically functionalized graphene... - Fundamental performance limits of carbon nanotube thin-film transistors achieved using hybrid molecular dielectricsVinod K Sangwan
Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA
ACS Nano 6:7480-8. 2012..5 μS/μm), intrinsic field-effect mobility (147 cm(2)/(V s)), subthreshold swing (150 mV/decade), and on/off ratio (5 × 10(5)), while also achieving hysteresis-free operation in ambient conditions... - Colored semitransparent conductive coatings consisting of monodisperse metallic single-walled carbon nanotubesAlexander A Green
Department of Materials Science and Engineering and Department of Chemistry, Northwestern University, Evanston, Illinois 60208 3108, USA
Nano Lett 8:1417-22. 2008..6 in the visible and 10 in the infrared. Moreover, by using monodisperse metallic SWNTs sorted with angstrom-level resolution in diameter, semitransparent conductive coatings with tunable optical transmittance can be produced... - Controlled growth of platinum nanoparticles on strontium titanate nanocubes by atomic layer depositionSteven T Christensen
Department of Materials Science and Engineering Northwestern University Evanston, IL 60208 3108, USA
Small 5:750-7. 2009..X-ray absorption spectroscopy shows a progression from platinum(II) oxide to metallic platinum and a decrease in Pt--O bonding with an increase in Pt--Pt bonding as the number of ALD cycles increases... - Sorting carbon nanotubes by electronic structure using density differentiationMichael S Arnold
Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208-3108, USA
Nat Nanotechnol 1:60-5. 2006..These materials were used to fabricate thin-film electrical devices of networked SWNTs characterized by either metallic or semiconducting behaviour... - Hydrodynamic characterization of surfactant encapsulated carbon nanotubes using an analytical ultracentrifugeMichael S Arnold
Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208 3108, USA
ACS Nano 2:2291-300. 2008..Additionally, the results obtained here should aid in understanding the hydrodynamic properties of SWNTs and the interactions between SWNTs and surfactants in aqueous solution... - Solution phase production of graphene with controlled thickness via density differentiationAlexander A Green
Department of Materials Science, Northwestern University, Evanston, Illinois 60208 3108, USA
Nano Lett 9:4031-6. 2009..Graphene dispersions produced using density differentiation offer superior performance in transparent conductors than those produced using conventional sedimentation-based centrifugation techniques... - Phenylacetylene one-dimensional nanostructures on the Si(100)-2 x 1:H surfaceMichael A Walsh
Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA
J Am Chem Soc 132:3013-9. 2010..Additional evidence from SFG measurements corroborates the conclusion that the terminal carbon atoms of PA retain pi-conjugation following reaction to the Si(100)-2 x 1:H surface... - Biomolecule-directed assembly of self-supported, nanoporous, conductive, and luminescent single-walled carbon nanotube scaffoldsGordana N Ostojic
Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208 3108, USA
Small 8:1840-5. 2012..The macroscopic nanotube aerogel is conductive and luminescent and presents an excellent scaffold for subsequent functionalization. For example, platinum and titanium dioxide coating of the nanotube network is demonstrated... - Ambient AFM nanoscale oxidation of hydrogen-passivated silicon with conductive-diamond-coated probesMatthew J Schmitz
Materials Science Department, Northwestern University, 2220 Campus Drive, Evanston, IL 60208-3108, USA
Small 3:2053-6. 2007 - Atomically resolved charge redistribution for Ga nanocluster arrays on the Si(111)-7 x 7 surfaceQing Hua Wang
Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208-3108, USA
Small 4:915-9. 2008 - Microscale features and surface chemical functionality patterned by electron beam lithography: a novel route to poly(dimethylsiloxane) (PDMS) stamp fabricationMatthew T Russell
Department of Chemistry and Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
Langmuir 22:6712-8. 2006.... - Chemically homogeneous and thermally reversible oxidation of epitaxial grapheneMd Zakir Hossain
Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA
Nat Chem 4:305-9. 2012..In this manner, ultrahigh-vacuum oxidation overcomes the limitations of Hummers-method graphene oxide, thus creating new opportunities for the study and application of chemically functionalized graphene... - Sorting single-walled carbon nanotubes by electronic type using nonionic, biocompatible block copolymersAlexander L Antaris
Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208 3108, USA
ACS Nano 4:4725-32. 2010.... - Room-temperature molecular-resolution characterization of self-assembled organic monolayers on epitaxial grapheneQing Hua Wang
Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA
Nat Chem 1:206-11. 2009..The demonstration of robust, uniform organic functionalization of epitaxial graphene presents opportunities for graphene-based molecular electronics and sensors... - Building conjugated organic structures on Si(111) surfaces via microwave-assisted Sonogashira couplingJui Ching Lin
Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA
Langmuir 26:3771-3. 2010..The high yield and short reaction time offered by microwave-assisted surface Sonogashira coupling chemistry make it a promising strategy for functionalizing Si surfaces... - Structural characterization of 4-bromostyrene self-assembled monolayers on si(111)Rajiv Basu
Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208 3108, USA
Langmuir 23:1905-11. 2007..Overall, through this unique suite of complementary structural characterization techniques, it is concluded that the Br functional handle is preserved at the top of the SAM and is available for further substitutional chemistry... - Minimizing graphene defects enhances titania nanocomposite-based photocatalytic reduction of CO2 for improved solar fuel productionYu Teng Liang
Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
Nano Lett 11:2865-70. 2011..This counterintuitive result is attributed to their superior electrical mobility, which facilitates the diffusion of photoexcited electrons to reactive sites... - Noncovalent functionalization of DNA-wrapped single-walled carbon nanotubes with platinum-based DNA cross-linkersGordana N Ostojic
Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208 3108, USA
Langmuir 24:9784-9. 2008.... - Large-area, electronically monodisperse, aligned single-walled carbon nanotube thin films fabricated by evaporation-driven self-assemblyTejas A Shastry
Department of Materials Science, Northwestern University, 2220 Campus Dr, Evanston, IL 60208 3108, USA
Small 9:45-51. 2013..Tunability is possible from 0.5 μm stripes to continuous thin films. The resulting SWCNT thin films possess highly anisotropic electrical and optical properties that are well suited for transparent conductor applications... - Control and characterization of cyclopentene unimolecular dissociation on Si(100) with scanning tunneling microscopyNathan L Yoder
Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208 3108, USA
J Am Chem Soc 131:10059-65. 2009..While demonstrated here for cyclopentene on Si(100), this feedback-controlled approach can likely be applied to a wide array of chemical reactions on semiconductor surfaces... - Encapsulation of carbon nanotubes by self-assembling peptide amphiphilesMichael S Arnold
Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA
Langmuir 21:4705-9. 2005..The encapsulation by peptide amphiphiles is confirmed using transmission electron microscopy and optical absorbance spectroscopy and may have significant future applications in biosensing or medicine... - Self-assembly and photopolymerization of sub-2 nm one-dimensional organic nanostructures on grapheneAparna Deshpande
Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA
J Am Chem Soc 134:16759-64. 2012..Further quantitative insights into these experimental observations are provided by semiempirical quantum chemistry calculations that compare the molecular structure before and after photopolymerization... - Properties and application of double-walled carbon nanotubes sorted by outer-wall electronic typeAlexander A Green
Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208 3108, USA
ACS Nano 5:1459-67. 2011.... 
Biocompatible nanoscale dispersion of single-walled carbon nanotubes minimizes in vivo pulmonary toxicityGokhan M Mutlu
Department of Medicine, Division of Pulmonary and Critical Care Medicine, Northwestern University Feinberg School of Medicine, Evanston, IL 60208, USA
Nano Lett 10:1664-70. 2010..Biocompatible nanoscale dispersion provides a scalable method to generate purified preparations of SWCNTs with minimal toxicity, thus allowing them to be used safely in commercial and biomedical applications...- Application of scanning probe microscopy to the characterization and fabrication of hybrid nanomaterialsMark E Greene
Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208-3108, USA
Microsc Res Tech 64:415-34. 2004..This review concludes with a brief discussion of the remaining challenges and promising future prospects for this field... - Seeding atomic layer deposition of high-k dielectrics on epitaxial graphene with organic self-assembled monolayersJustice M P Alaboson
Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
ACS Nano 5:5223-32. 2011..These results demonstrate the viability of sublimated organic self-assembled monolayers as seeding layers for high-k dielectric films in graphene-based nanoelectronics... - High aspect ratio nanoneedle probes with an integrated electrode at the tip apexDavid J Comstock
Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA
Rev Sci Instrum 83:113704. 2012..These probes have clear applications in scanning electrochemical microscopy-atomic force microscopy, magnetic force microscopy, apertureless near-field optical microscopy, and tip-enhanced Raman spectroscopy... - X-ray studies of self-assembled organic monolayers grown on hydrogen-terminated Si(111)Hua Jin
Department of Materials Science and Engineering, and Nanoscale Science, Engineering Center, Northwestern University, Evanston, Illinois 60208, USA
Langmuir 20:6252-8. 2004..From the combined XPS, XRR, XRF, and XSW evidence, it is concluded that Br abstraction by reactive surface dangling bonds competes with olefin addition to the surface... - Probing charge transport at the single-molecule level on silicon by using cryogenic ultra-high vacuum scanning tunneling microscopyNathan P Guisinger
Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, IL 60208-3108, USA
Proc Natl Acad Sci U S A 102:8838-43. 2005..Overall, these results serve as the basis for a series of design rules that can be applied to silicon-based molecular electronic devices... - Nanoscale structure, composition, and charge transport analysis of transparent conducting oxide nanowires written by focused ion beam implantationNorma E Sosa
Department of Materials Science and Engineering and the Materials Research Center, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208 3108, and Department of Chemistry and the Materials Research Center, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208 3113
J Am Chem Soc 132:7347-54. 2010..The nanowires exhibit ohmic electrical behavior and with an average estimated conductivity of 1600-3600 S cm(-1), similar to macroscale Ga-doped In(2)O(3) films grown by conventional processes... - Atomic covalent functionalization of grapheneJames E Johns
Department of Materials Science, Northwestern University, Evanston, Illinois 60208 3108, United States
Acc Chem Res 46:77-86. 2013..In addition to these chemical and structural observations, we review how covalent modification can extend the range of physical properties that are achievable in two-dimensional materials... - Reduced contact resistance in inkjet printed high-performance amorphous indium gallium zinc oxide transistorsJonathan W Hennek
Department of Chemistry and the Materials Research Center, Northwestern University, 2145 Sheridan Road, Evanston, Illinois, 60208, USA
ACS Appl Mater Interfaces 4:1614-9. 2012.... - Narrow Diameter Distributions of Metallic Arc Discharge Single-Walled Carbon Nanotubes via Dual-Iteration Density Gradient UltracentrifugationTimothy P Tyler
Department of Materials Science and Engineering, Department of Chemistry, Department of Medicine and the Argonne Northwestern Solar Energy Research ANSER Center, Northwestern University, 2220 Campus Drive, Evanston, Illinois 60208 3108, USA
Adv Mater 24:4765-8. 2012..Measurements of uniform sheet resistances and work functions confirm the largely invariant electronic properties between metallic arc discharge SWCNT films of differing diameters... - Molecular electronics on silicon: an ultrahigh vacuum scanning tunneling microscopy studyNathan P Guisinger
Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208-3108, USA
Ann N Y Acad Sci 1006:227-34. 2003..Direct charge transport measurements through individual TEMPO molecules on degenerately n-type doped Si(100) reveal room temperature negative differential resistance behavior for negative sample biases exceeding - 3 volts... - Atomic-scale templates patterned by ultrahigh vacuum scanning tunneling microscopy on siliconMichael A Walsh
Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208 email
Annu Rev Phys Chem 60:193-216. 2009..This review discusses the mechanisms of STM-induced hydrogen desorption, the postpatterning deposition of molecules and materials, and the implications for nanoscale device fabrication... - Scanning tunneling microscopy, spectroscopy, and nanolithography of epitaxial graphene chemically modified with aryl moietiesMd Zakir Hossain
Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
J Am Chem Soc 132:15399-403. 2010..The adsorbed species can be selectively desorbed by the STM tip above a threshold sample bias of -5 V and tunneling current of 1 nA, thus enabling the fabrication of a diverse range of graphene nanopatterns at the sub-5 nm length scale... - Integrated ultramicroelectrode-nanopipet probe for concurrent scanning electrochemical microscopy and scanning ion conductance microscopyDavid J Comstock
Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, Energy Systems Division and Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, and Department of Chemistry, Northwestern University, Evanston, Illinois 60208
Anal Chem 82:1270-6. 2010..This probe geometry enables successful SECM-SICM imaging on features as small as 180 nm in size... - Enrichment of single-walled carbon nanotubes by diameter in density gradientsMichael S Arnold
Department of Materials Science and Engineering, Feinberg School of Medicine, Northwestern University, Evanston, Illinois 60208-3108, USA
Nano Lett 5:713-8. 2005..This nondestructive and scalable separation strategy is expected to impact the fields of molecular electronics, optoelectronics, and sensing where SWNTs of a monodisperse band gap are essential... - Consequences of Anode Interfacial Layer Deletion. HCl-Treated ITO in P3HT:PCBM-Based Bulk-Heterojunction Organic Photovoltaic DevicesMichael D Irwin
Department of Chemistry, the Materials Research Center, and the Argonne Northwestern Solar Energy Research Institute, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208 3113
Langmuir 26:2584-91. 2010..Additionally, a diode-based device model is employed to further understand the effects of ITO surface treatment on device performance... - Nanoscale in situ characterization of Li-ion battery electrochemistry via scanning ion conductance microscopyAlbert L Lipson
Department of Materials Science and Engineering, Department of Chemistry, Northwestern University, 2220 Campus Dr Evanston, IL 60208 3108, USA
Adv Mater 23:5613-7. 2011..Images of silicon and tin electrodes show that the combination of topography and ion current provides insight into the local electrochemical phenomena that govern the operation of lithium ion batteries... - Pure optical dephasing dynamics in semiconducting single-walled carbon nanotubesMatthew W Graham
Department of Chemistry, University of California, Berkeley, and Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
J Chem Phys 134:034504. 2011..This consideration further suggests the occurrence of remarkable initial exciton delocalization and makes nanotubes ideal to study many-body effects in spatially confined systems... - Detecting elusive surface atoms with atomic force microscopyMark C Hersam
Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, IL 60208-3108, USA
Proc Natl Acad Sci U S A 100:12531-2. 2003 - Exciton energy transfer in pairs of single-walled carbon nanotubesHuihong Qian
Department Chemie and Biochemie and CeNS, Ludwig Maximilians Universitat Munchen, 81377 Munchen, Germany
Nano Lett 8:1363-7. 2008..The range of efficient energy transfer is found to be limited to a few nanometers because of competing fast nonradiative relaxation responsible for low photoluminescence quantum yield... - Visualizing the local optical response of semiconducting carbon nanotubes to DNA-wrappingHuihong Qian
Department Chemie and Biochemie and CeNS, Ludwig Maximilians Universitat Munchen, 81377 Munchen, Germany
Nano Lett 8:2706-11. 2008..The transition between the two energy levels occurs on a length scale smaller than our spatial resolution of about 15 nm...