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Scholarly Interest Report
Robert Vajtai
Faculty Fellow
Senior Faculty Fellow in Materials Science and NanoEngineering
  • Ph.D. (1997) University of Szeged, Szeged, Hungary
Primary Department
   Department of Materials Science and NanoEngineering
Research Areas
 Synthesis processing, characterization of new, advanced material forms and structures. carbon 2D materials 3D carbon structures energy storage
Teaching Areas
 materials science
Selected Publications
 Refereed articles

“Probing the engineered sandwich network of vertically aligned carbon nanotube-reduced graphene oxide composites for high performance electromagnetic interference shielding applications”
A. P. Singh, M. Mishra, D. P. Hashim, T.N. Narayanan, M. G. Hahm, P. Kumar, J. Dwivedi, G. Kedawat, A. Gupta, B. P. Singh, A. Chandra, R. Vajtai, S. K. Dhawan, P. M. Ajayan and B. K. Gupta
Carbon, 85, 79-88 (2015)


“3D Band Diagram and Photoexcitation of 2D–3D Semiconductor Heterojunctions”
B. Li, G. Shi, S. Lei, Y. He, W. Gao, Y. Gong, G. Ye, W. Zhu, K. Keyshar, J. Hao, P. Dong, L. Ge, J. Lou, J. Kono, R. Vajtai, P. M. Ajayan
Nanoletters, 15(9), 5919-5925 (2015)


“Scalable Transfer of Suspended Two Dimensional Single Crystals”
B. Li, Y. He, S. Lei, S. Najmaei, Y. Gong, X. Wang, J. Zhang, L. Ma, K. Keyshar, G. Shi, A. George, Y. Yang, J. Hao, P. Dong, L. Ge, R. Vajtai, J. Lou, Y. J. Jung, P. M. Ajayan
Nanoletters, 15(8), 5089-5097 (2015)


“Fabrication of manganese oxide/three-dimensional reduced graphene oxide composites as the supercapacitors by a reverse microemulsion method”
B. Wei, L. Wang, Q. Miao, Y. Yuan, P. Dong, R. Vajtai, and W. Fei
Carbon, 85, 249-260 (2015)


“High apparent strengthening efficiency for reduced graphene oxide in copper matrix composites produced by molecule-lever mixing and high-shear mixing”
Corresponding Author:  Weidong Fei
L. Wang, Y. Cui, B. Li, S. Yang, R. Li, Z. Liu, R. Vajtai, W. Fei
RSC Advances, 5, 51193-51200 (2015)


“Structured Reduced Graphene Oxide/Polymer Composites for Ultra-Efficient Electromagnetic Interference Shielding”
D. X. Yan, H. Pang, B. Li, R. Vajtai, L. Xu, P. G. Ren, J. H. Wang, Z. M. Li,
Advanced Functional Materials, 25(4), 559–566 (2015)


“Conduction Mechanisms in CVD‐Grown Monolayer MoS2 Transistors: From Variable‐Range Hopping to Velocity Saturation”
G. He, K. Ghosh, U. Singisetti, H. Ramamoorthy, R. Somphonsane, G. Bohra, S. Najmaei, R. Vajtai, P. M. Ajayan & J. P. Bird
Nanoletters 15(8), 5052–5058 (2015)


“3D Reduced Graphene Oxide Coated V2O5 Nanoribbon Scaffolds for High-Capacity Supercapacitor Electrodes”
G. Ye, Y. Gong, K. Keyshar, E. A. M. Husain, G. Brunetto, S. Yang, R. Vajtai, P. M. Ajayan
Particle & Particle Systems Characterization, 32(8), 817–821 (2015)


“Nanosized Pt Anchored onto 3D Nitrogen-doped Graphene Nanoribbons towards Efficient Methanol Electrooxidation”
H. Huang, G. Ye, S. Yang, H. Fei, C. S. Tiwary, Y. Gong, R. Vajtai, J. M. Tour, X. Wang and P. M. Ajayan
J. Mater. Chem. A, 3(39), 19696-19701 (2015)


“Liquid phase exfoliation of two-dimensional materials by directly probing and matching surface tension components”
J. Shen, Y. He, J. Wu, C. Gao, K. Keyshar, X. Zhang, Y. Yang, M. Ye, R. Vajtai, J. Lou and P. M. Ajayan
Nanoletters, 15(8), 5449-5454 (2015)


“Nitrogen-Doped Graphene with Pyridinic Dominance as a Highly Active and Stable Electrocatalyst for Oxygen Reduction”
J. Wu, L. Ma, R. M. Yadav, Y. Yang, X. Zhang, R. Vajtai, J. Lou and P. M. Ajayan
ACS Applied Materials and Interfaces, 7(27), 14763–14769 (2015)


“3D Nanostructured Molybdenum Diselenide/Graphene Foam as Anodes for Long-Cycle Life Lithium-ion Batteries”
J. Yao, B. Liu, S. Ozden, J. Wu, S. Yang, M.-T. F. Rodrigues, K. Kalaga, P. Dong, P. Xiao, Y. Zhang, R. Vajtai, and P. M. Ajayan
Electrochimica Acta, 176(10), 103–111 (2015)


“Facile synthesis of nanostructured carbon materials over RANEY nickel catalyst films printed on Al2O3 and SiO2 substrates”
J.-F. Lin, M. Mohl, M. Nelo, G. Toth, A. Kukovecz, Z. Konya, S. Sridhar, R. Vajtai, P. M. Ajayan, W.-F. Su, H. Jantunen and K. Kordas
Journal of Materials Chemistry C, 3, 1823-1829 (2015)


“Chemical Vapor Deposition of Monolayer Rhenium Disulfide (ReS2)”
K. Keyshar, Y. Gong, G. Ye, G. Brunetto, W. Zhou, D. P. Cole, K. Hackenberg, Y. He, L. Machado, M. Kabbani, A. H. C. Hart, B. Li, D. S. Galvao, A. George, R. Vajtai, C. S. Tiwary and P. M. Ajayan
Advanced Materials, 27(31) 4640–4648 (2015)


“Microstructure and properties of carbon nanosheet/copper composites processed by particle-assisted shear exfoliation”
L.D. Wang, Y. Cui, S. Yang, B. Li, Y. Liu, P. Dong, J. Bellah, G. Fan, R. Vajtai, W. Fei
RSC Advances, 5, 19321-19328 (2015)


“Ambient solid-state mechano-chemical reactions between functionalized carbon nanotubes”
M. A. Kabbani, C. S. Tiwary, P. A. S. Autreto, G. Brunetto, A. Som, K. R. Krishnadas, S. Ozden, K. P. Hackenberg, Y. Gong, D. S. Galvao, R. Vajtai, A. T. Kabbani, T. Pradeep and P. M. Ajayan
Nature Communications, 6, 7291 (2015)


“Low Interfacial Contact Resistance of Al-Graphene Composites via Interface Engineering”
M. G. Hahm, J. Nam, M. Choi, Ch-D. Park, B. Choi, S. Kazunori, Y. A. Kim, D. Y. Kim, M. Endo, D-H. Kim, R. Vajtai, P. M. Ajayan, S. M. Song
Nanotechnology, 26, 215603 (2015)


“Self-assembled large scale metal alloy grid patterns as flexible transparent conductive layers”
M. Mohl, A. Dombovari, R. Vajtai, P. Ajayan, K. Kordas
Scientific Reports, 5 13710 (2015)


“Effect of interwall interaction on the electronic structure of doublewalled carbon nanotubes"
M. Soto, T. A. Boyer, S. Biradar, L. Ge, R. Vajtai, A. Elias-Zuniga, P.M. Ajayan, E. V. Barrera
Nanotechnology, 26, 165201 (2015)


“Functionalized boron nitride porous solids”
P. M. Sudeep, S. Vinod, S. Ozden, R. Sruthi, A. Kukovecz, Z. Konya, R. Vajtai, M. R. Anantharaman, P. M. Ajayan and T. N. Narayanan
RSC Advances, 5, 93964-93968 (2015)


“Carbon Nitrogen Nanotubes as Efficient Bifunctional Electrocatalysts for Oxygen Reduction and Evolution Reactions”
R. M. Yadav, J. Wu, R. Kochandra, L. Ma, C. S. Tiwary, L. Ge, G. Ye, R. Vajtai, J. Lou and P. M. Ajayan
ACS Applied Materials and Interfaces, 7(22), 11991-12000 (2015)


“Synthesis of N, F and S Co-Doped Graphene Quantum Dots”
S. Kundu, R. M. Yadav, T. N. Narayanan, M. V Shelke, R. Vajtai, P. M Ajayan, and V. K. Pillai
Nanoscale, 7, 11515-11519 (2015)


“An Atomically Layered InSe Avalanche Photodetector”
S. Lei, F. Wen, L. Ge, S. Najmaei, A. George, Y. Gong, W. Gao, Z. Jin, B. Li, J. Lou, J. Kono, R. Vajtai, P. Ajayan, N. J. Halas
Nanoletters, 15(5), 348-3055 (2015)


“An Optoelectronic Memory using Two-Dimensional Materials”
S. Lei, F. Wen, Q. Wang, Y. Huang, Y. Gong, Y. He, B. Li, P. Dong, J. Bellah, A. George, L. Ge, J. Lou, N. J. Halas, R. Vajtai, P. M. Ajayan
Nanoletters, 15(1), 259-265 (2015)


“Density Variant Carbon Nanotube Interconnected Solids”
S. Ozden, C. S. Tiwary, A. H. C. Hart, A. C. Chipara, R. Romero-Aburto, M.T.F. Rodrigues, J.Taha-Tijerina, R. Vajtai, and P. M. Ajayan
Advanced Materials, 27(11), 1842-1850 (2015)


“3D Macroporous Solids from Chemically Cross-linked Carbon Nanotubes”
S. Ozden, T. N. Narayanan, C. S. Tiwary, P. Dong, A. H. C. Hart, R. Vajtai, Pulickel M. Ajayan
Small, 11(6), 688-693 (2015)


“Boron- and Nitrogen-Substituted Graphene Nanoribbons as Efficient Catalysts for Oxygen Reduction Reaction”
Y. Gong, H. Fei, X. Zou, W. Zhou, S. Yang, G. Ye, Z. Liu, Z. Peng, J. Lou, R. Vajtai, B.I. Yakobson, J.M. Tour, P.M. Ajayan
Chemistry of Materials, 27(4), 1181-1186 (2015)


“Two-Step Growth of Two-Dimensional WSe2/MoSe2 Heterostructures”
Y. Gong, S. Lei, G. Ye, B. Li, Y. He, K. Keyshar, X. Zhang, Q. Wang, J. Lou, Z. Liu, R. Vajtai, W. Zhou, P. M. Ajayan
Nanoletters, 15(9), 6135-6141 (2015)


“Tellurium-Assisted Low-Temperature Synthesis of MoS2 and WS2 Monolayers”
Y. Gong, Z. Lin, G. Ye, G. Shi, S. Feng, Y. Lei, A. L. Elías, N. Perea-Lopez, R. Vajtai, H. Terrones, Z. Liu, M. Terrones, and P. M. Ajayan
ACS Nano, 9(12), 11658–11666 (2015)


“Electromechanical Properties of Polymer Electrolyte-Based Stretchable Supercapacitors”
D. P. Cole, A. L. M. Reddy, M. G. Hahm, R. McCotter, A. H. C. Hart, R. Vajtai, P. M. Ajayan, S. P. Karna and M. L. Bundy
Advanced Energy Materials, 4(3), 1300844 (5 pages) (2014).


“Boron Nitride–Graphene Nanocapacitor and the Origins of Anomalous Size-Dependent Increase of Capacitance”
G. Shi, Y. Hanlumyuang, Z. Liu, Y. Gong, W. Gao, B. Li, J. Kono, J. Lou, R. Vajtai, P. Sharma and P. M. Ajayan
Nanoletters, 14(4), 1739–1744 (2014)


“Pt-Decorated 3D Architectures Built from Graphene and Graphitic Carbon Nitride Nanosheets as Efficient Methanol Oxidation Catalysts”
H. Huang, S. Yang, R. Vajtai, X. Wang and P. M. Ajayan
Advanced Materials, 26(30), 5160-5165 (2014)


“Effect of microwave irradiation on carbon nanotube fibers: exfoliation, structural change and strong light emission”
H. Sun, J. Q. Wei, J. Sun, C. Ning, J. Zhu, Y. Jia, S. Yang, H. Zhu, K. Wang, D. Wu, Y. Zhao, R. Vajtai, P. M. Ajayan
RSC Advances, 4(30), 15502-15506 (2014)


"Synthesis and photocurrent of amorphous boron nanowires"
L. Ge, S. Lei, A. H. C. Hart, G. Gao, H. Jafry, R. Vajtai and P. M. Ajayan
Nanotechnology, 25, 335701 (2014)


 “Unzipping Carbon Nanotubes at High Impact”
S Ozden, P. A. S. Autreto, C. S. Tiwary, S. Khatiwada, L. Machado, D. S. Galvao, R. Vajtai, E. V. Barrera, P. M. Ajayan
Nanoletters, 14(7), 4131-4137 (2014)


“Low-density three-dimensional foam using self-reinforced hybrid two-dimensional atomic layers”
S Vinod, C. S. Tiwary, J. Taha-Tijerina, P. A. da S. Autreto, S. Ozden, A. C. Chipara,1 R. Vajtai, D. S. Galvao, T. N. Narayanan, and P. M. Ajayan
Nature Communications, 5, Article number: 4541 (2014)


“Universal ac conduction in large area atomic layers of CVD-grown MoS2
S. Ghosh, S. Najmaei, S. Kar, R. Vajtai, J. Lou, N. R. Pradhan, L. Balicas, P. M. Ajayan, and S. Talapatra
Phys. Rev. B 89(12), 125422 (2014)


“Evolution of the Electronic Band Structure and Efficient Photo-detection in Atomic Layers of InSe”
S. Lei, L. Ge, S. Najmaei, A. George, R. Kappera, J. Lou, M. Chhowalla, H. Yamaguchi, G. Gupta, R. Vajtai, A. D. Mohite, and P. M. Ajayan
ACS Nano, 8(2), 1263-1272 (2014)


“Anisotropically Functionalized Carbon Nanotube Array Based Hygroscopic Scaffolds”
S. Ozden, L. Ge, T. N. Narayanan, A.H.C. Hart, H. Yang, S. Sridhar, R. Vajtai, P. M. Ajayan
ACS Applied Materials & Interfaces, 6(13), 10608-10613 (2014)


“Field Emission with Ultralow Turn On Voltage from Metal Decorated Carbon Nanotubes”
S. Sridhar, C. S. Tiwary, S. Vinod , J. J. Taha-Tijerina, S. V. Sridhar, K. Kalaga, B. Sirota, A. H. C. Hart, S. Ozden, R. K. Sinha, H. Harsh, R. Vajtai, W. Choi, K. Kordas, and P.M. Ajayan,
ACS Nano, DOI: 10.1021/nn500921s


“Enhanced Field Emission Properties from CNT Arrays Synthesized on Inconel Superalloy”
S. Sridhar, L. Ge, C. S. Tiwary, A. C. Hart, S. Ozden, K. Kalaga, S. Lei, S.V. Sridhar, R. K. Sinha, H. Harsh, K. Kordas, P.M. Ajayan and R. Vajtai
ACS Applied Materials & Interfaces, 6(3), 1986-1991(2014)


“High-Contrast Terahertz Wave Modulation by Gated Graphene Enhanced by Extraordinary Transmission through Ring Apertures”
W. Gao, J. Shu, K. Reichel, D. V. Nickel, X. He, G. Shi, R. Vajtai, P. M. Ajayan, J. Kono, D. M. Mittleman, and Q. Xu
Nanoletters, 14(3), 1242-1248 (2014)


“Chemical Vapor Deposition Growth of Crystalline Monolayer MoSe2
X. Wang, Y. Gong, G. Shi, W. L. Chow, K. Keyshar, G. Ye, R. Vajtai, J. Lou, Z. Liu, E. Ringe, B. K. Tay, P. M. Ajayan
ACS Nano, 8(5), 5125-5131 (2014)


“Direct chemical conversion of graphene to boron- and nitrogen- and carbon-containing atomic layers”
Y. Gong, G. Shi, Z. Zhang, W. Zhou, J. Jung, W. Gao, L. Ma, Y. Yang, S. Yang, G. You, R. Vajtai, Q. Xu, A. H. MacDonald, B. I. Yakobson, J. Lou, Z. Liu, P. M. Ajayan
Nature Communications, 5, Article number: 3193 (2014)


“A Bottom-Up Approach to Build 3D Architectures from Nanosheets for Superior Lithium Storage”
Y. Gong, S. Yang, L. Zhan, L. Ma, R. Vajtai, and P. M. Ajayan
Advanced Functional Materials, 24(1), 125–130 (2014).


“Band Gap Engineering and Layer-by-Layer Mapping of Selenium-doped Molybdenum Disulfide”
Y. Gong, Z. Liu, A. Lupini, G. Shi, J. Lin, S. Najmaei, Z. Lin, A. L.Elias, A. Berkdemir, Y. Ge , H. Terrones, M. Terrones, R. Vajtai, S. Pantelides, S. Pennycook, J. Lou, W. Zhou, P. M. Ajayan
Nanoletters, 14(2), 442-449 (2014).


“Imaging molecular adsorption and desorption dynamics on graphene using terahertz emission spectroscopy”
Y. Sano, I. Kawayama, M. Tabata, K. A. Salek, M. Wang, R. Vajtai, P. M. Ajayan, J. Kono, and M. Tonouchi
Scientific reports, 4, Article number 6046 (2014)


“Tunable Electronics in Large-Area Atomic Layers of Boron–Nitrogen–Carbon”
B. Muchharla, A. Pathak, Z. Liu, L. Song, T. Jayasekera, S. Kar, R. Vajtai, L. Balicas, P. M. Ajayan, S. Talapatra, and N. Ali
Nano Letters, 13(8), 3476–3481 (2013)


“Magnetic Quantum Ratchet Effect in Graphene”
C. Drexler, S. A. Tarasenko, P. Olbrich, J. Karch, M. Hirmer, F. Müller, M. Gmitra, J. Fabian, R. Yakimova, S. Lara-Avila, S. Kubatkin, M. Wang, R. Vajtai, P. M. Ajayan, J. Kono, and S. D. Ganichev
Nat Nano, 8(2), 104-107 (2013)


“Functionalized Low Defect Graphene Nanoribbons and Polyurethane Composite Film for Improved Gas Barrier and Mechanical Performances”
C. Xiang, P. J. Cox, A. Kukovecz, B. Genorio, D. P. Hashim, Z. Yan, Z. Peng, C.-C. Hwang, G. Ruan, E. L. G. Samuel, P. M. Sudeep, Z. Konya, R. Vajtai, P. M. Ajayan, and J. M. Tour
ACS Nano, 7(11), 10380–10386 (2013)


“Marine corrosion protective coatings of hexagonal boron nitride thin films on stainless steel”
E. Husain, T. N. Narayanan, J. Taha-Tijerina, S. Vinod, R. Vajtai, P. M. Ajayan
ACS Applied Materials and Interfaces, 5(10), 4129-4135 (2013)


“Building 3D Structures of Vanadium Pentoxide Nanosheets and Application as Electrodes in Supercapacitors”
J. Zhu, L. Cao, Y. Wu, Y. Gong, Z. Liu, H. E. Hoster, Y. Zhang, S. Zhang, S. Yang, Q. Yan, P. M. Ajayan and R. Vajtai
Nanoletters, 13(11), 5408–5413 (2013)


“Direct Laser-Patterned Micro-Supercapacitors from Paintable MoS2 Films”
L. Cao, S. Yang, W. Gao, Z. Liu, Y. Gong, L. Ma, G. Shi, S. Lei, Y. Zhang, S. Zhang, R. Vajtai, and P. M. Ajayan
Small, 9(12), 2905-2910 (2013)


“Hexagonal Boron Nitride and Graphite Oxide Reinforced Multifunctional Porous Cement Composites”
M. A. Rafiee, T. N. Narayanan, D. P. Hashim, N. Sakhavand, R. Shahsavari, R. Vajtai, P. M. Ajayan
Advanced Functional Materials, 23(45), 5624–5630 (2013)


“Carbon nanotube core graphitic shell hybrid fibers”
M. G. Hahm, J.-H. Lee, A. H. C. Hart, C.-D. Park, S. M. Song, H. Y. Jung, D. P. Hashim, B. Li, N. T. Narayanan, Y. Zhao, J. Nam, R. Vajtai, Y. A. Kim, T. Hayashi, B.-Ch. Ku, M. Endo, E. V. Barrera, Y. J. Jung, E. L. Thomas, and P. M. Ajayan
ACS Nano, 7(12), 10971–10977 (2013)


“Thin micropatterned multi-walled carbon nanotube films for electrodes”
N. Halonen, J. Mäklin, A.-R. Rautio, J. Kukkola, A. Uusimäki, G. Toth, L. M. Reddy, R. Vajtai, P. M. Ajayan, K. Kordas
Chemical Physics Letters, 583, 87–91 (2013)


“Covalently Interconnected Three Dimensional Graphene Oxide Solids”
P. M. Sudeep, T. N. Narayanan, G.Aswathi, M. M. Shaijumon, H. Yang, S. Ozden, P.K. Patra, M. Pasquali, R. Vajtai, S. Ganguli, Ajit K. Roy, M. R. Anantharaman, and P. M. Ajayan
ACS Nano, 7 (8), 7034–7040 (2013)


“Synthesis and Photoresponse of Large GaSe Atomic Layers”
S. Lei, L. Ge, Z. Liu, S. Najmaei, G. Shi, G. You, J. Lou, R. Vajtai, and P. M. Ajayan
Nanoletters, 13(6), 2777–2781 (2013)


“Exfoliated Graphitic Carbon Nitride Nanosheets as Efficient Catalysts for Hydrogen Evolution Under Visible Light"
S. Yang, Y. Gong, J. Zhang, L. Zhan, L. Ma, Z. Fang, R. Vajtai, X. Wang, and P. M. Ajayan
Advanced Materials, 25(17), 2452-2456 (2013)


“Bottom-up Approach towards Single-Crystalline VO2-Graphene Ribbons as Cathodes for Ultrafast Lithium Storage”
S. Yang, Y. Gong, Z. Liu, L. Zhan, D. P. Hashim, L. Ma, R. Vajtai, and P. M. Ajayan
NanoLetters, 13(4), 1596-1601 (2013)


“Excitation and Active Control of Propagating Surface Plasmon Polaritons in Graphene”
W. Gao, G. Shi, Z. Jin, J. Shu, Q. Zhang, R. Vajtai, P. M. Ajayan, J. Kono, and Q. Xu
NanoLetters, 13 (8), 3698–3702 (2013)


“Graphene-Network-Backboned Architectures for High-Performance Lithium Storage”
Y. Gong, S. Yang, Z. Liu, L. Ma, R. Vajtai and P. M. Ajayan
Advanced Materials, 25(29), 3979-3984 (2013)


“In-Plane Heterostructures of Graphene and Hexagonal Boron Nitride with Controlled Domain Sizes”
Z. Liu, L. Ma, G. Shi, W. Zhou, Y. Gong, S. Lei, X. Yang, J. Zhang, J. Yu, K. P. Hackenberg, A. Babakhani, J.-C. Idrobo, R. Vajtai, J. Lou, and P. M. Ajayan
Nat Nano, 8(2), 119-124 (2013)


“Ultrathin High Temperature Oxidation Resistant Coatings of Hexagonal Boron Nitride”
Z. Liu, Y. Gong, W. Zhou, L. Ma, J. Yu, J. C. Idrobo, R. Vajtai, J. Jung, J. Lou, A. H. MacDonald, and P. M. Ajayan
Nature Communications, 4, Article number: 2541 (2013)


“Water tribology on graphene"
H. E. N’guessan, A. Leh, P. Cox, P. Bahadur, R. Tadmor, P. Patra, R. Vajtai, P. M. Ajayan & P. Wasnik
Nature Communications, 3, Article number 1242 (2012)


A. Kumar, H. Gullapalli, K. Balakrishnan, A. Botello-Mendez, R. Vajtai, M. Terrones and P. M. Ajayan "Flexible ZnO–Cellulose Nanocomposite for Multisource Energy Conversion ." Small, 7(15) (2011) : 2173–2178.


A. S. Sayyad, K. Balakrishnan, J. A. Rodriguez-Manzo, L. Ci, F. Banhart, A. T. Kabbani, R. Vajtai, and P. M. Ajayan "Synthesis of Iron Nanoparticles from Hemoglobin and Myoglobin." Nanotechnology (2011) Submitted


D. P. Hashim, J. M. Romo-Herrera, D. A. Cullen, N. T. Narayanan, P. Lezzi, J. R. Suttle, D. Kelkhoff, R. Vajtai, E. Muńoz-Sandoval, D. J. Smith, M. Terrones, H. Terrones, S. Ganguli, Ajit K. Roy, P. M. Ajayan "Covalently bonded three-dimensional carbon nanotube solids via boron induced covalent nanojunctions." Nature Communications (2011) Submitted


F. Járai-Szabó, E.-Á. Horvát, R. Vajtai and Z. Néda "“Spring-block Approach for Nanobristle Patterns ." Chemical Physics Letters, 511 (2011) : 378–383.


H. Gao, L. Song, W. Guo, W. Gao, S. S. Yang, Y. F. Wang, Y. H. Wang, R. Vajtai , and P. M. Ajayan (+Ken) "A simple method to synthesize continuous large area nitrogen-doped graphene." Carbon (2011) Submitted


H. Gao, Z. Liu, L. Song, W. Guo, W. Gao, L. Ci, A. Rao, W. Quan, R. Vajtai , and P. M. Ajayan submitted to "Synthesis of S-doped Graphene by Liquid Precursor." Chem. Mater. (2011) Submitted


J. F. Tullius, R. Vajtai and Y. Bayazitoglu "A review of cooling in microchannels." Heat Transfer Engineering, 32 (7 & 8) (2011) : 527-541.


J. J. Yoo, K. Balakrishnan, A. Srivastava, L. M. A. Reddy, V. Meunier, J. Huang, B. Sumpter, J. Yu, R. Vajtai and P. M. Ajayan "Novel 2D in-plane Supercapacitor Devices Based on Graphene Materials." NanoLetters, 11 (4) (2011) : 1423–1427.


L. Song, G. Toth, J. Q. Wei, Z. Liu, W. Gao, L. Ci, R. Vajtai, M. Endo and P. M. Ajayan "Sharp burnout failure observed in high current-carrying double-walled carbon nanotube fibers." Nanotechnology (2011) In Press


Li Song, J. Ni, L. Ci, R. Vajtai, Z. J. Zhang and P. M. Ajayan "Low temperature CVD Growth of Graphene-like Films." Small (2011) Submitted


M. Darányi, T. Csesznok, Á. Kukovecz, Z. Kónya, I. Kiricsi, P. M. Ajayan, and R. Vajtai "Layer-by-Layer Assembly of TiO2 Nanowire/Carbon Nanotube Films and Characterization of their Potocatalytic Activity." Nanotechnology, 22 195701 (2011) : 9.


M. Mohl, D. Dobo, A. Kukovecz, Z. Konya, K. Kordas, R. Vajtai, and Pulickel M. Ajayan "Formation of Cu-Pd and Cu-Pt Bimetallic Nanowires by Galvanic Replacement Reaction." J. Phys. Chem. C, , 115 (19) (2011) : 9403–9409.


M.-C. Wu, J. Hiltunen, A. Sápi, A. Avila, W. Larsson, H.-C. Liao, M. Huuhtanen, G. Tóth, A. Shchukarev, N. Laufer, Á. Kukovecz, Z. Kónya, J.-P. Mikkola, R. Keiski, W.-F. Suf, Y.-F. Cheng, H. Jantunen, P. M. Ajayan, Robert Vajtai and K. Kordás "Nitrogen-Doped Anatase Nanofibers Decorated with Noble Metal Nanoparticles for Photocatalytic Production of Hydrogen." ACS Nano, 5(6) (2011) : 5025–5030.


O.-K. Park, M. G. Hahm, S. Lee, H.-I. Joh, S.-I. Na, R. Vajtai, J. H. Lee, B.-C. Ku and P. M. Ajayan "In situ Synthesis of Thermochemically Reduced Graphene Oxide Conducting Nanocomposites." Nanoletters (2011) Submitted


R. K. Srivastava, S. Srivastava, N. T. Narayanan, B. D. Mahlotra, R. Vajtai, P. M. Ajayan, A. Srivastava "Functionalized multi-layered graphene platform for urea sensor." ACS Nano


R. K. Srivastava, T. N. Narayanan, A. P. Reena Mary, M. R. Anantharaman, A. Srivastava, R. Vajtai and P. M. Ajayan "Ni filled flexible multi-walled carbon nanotube—polystyrene composite films as microwave absorbers." Applied Physics Letters, 99, 113116 (2011)


R. K. Srivastava, V. S. M. Vemuru, Y. Zeng, R. Vajtai, S. Nagarajaiah, P. M. Ajayan, A. Srivastava "Strain Sensing and Thermal-mechanical Behavior of Flexible Carbon Nanotube - Polystyrene Nanocomposite Films." Carbon, 49 (2011) : 3928-3936.


T. N. Narayanan, Z. Liu, P. R. Lakshmy, W. Gao, Y. Nagaoka, D. S. Kumar, J. Lou, Robert Vajtai, and P M Ajayan "Synthesis of reduced graphene oxide–Fe3O4 multifunctional freestanding membranes and its temperature dependent electronic transport properties ." CarbonIn Press


W. Gao, N. Singh, L. Song, Z. Liu, A. L. M. Reddy, L. Ci, R. Vajtai, Q. Zhang, B. Q. Wei and P. M. Ajayan "Direct laser writing of micro-supercapacitors on hydrated graphite oxide films." Nature Nanotechnology, 6(8) (2011) : 496-500.


Y. Zhao, J.Q. Wei, R. Vajtai, P. M. Ajayan, and E. V. Barrera "Iodine doped carbon nanotube cables exceeding specific electrical conductivity of metals ." Scientific Reports, 1, Article number: 83


Z. Liu, Y. J. Zhan, S. Moldovan, M. Gharbi, L. Song, G. Shi, L. L. Ma, W. Gao, S. Z. Zhao, J. Huang, R. Vajtai, F. Banhart, P. Sharma, J. Lou and P. M. Ajayan "Coaxial Single Nanowire Capacitor." Nature Communications (2011) Submitted

 Book chapters

“Introduction to nanomaterials science”R. Vajtaiin “Springer Handbook of Nanomaterials”, edited by: R. VajtaiSpringer, pp. 1-36, 2013


G. Tóth, K. Kordás, P. M. Ajayan, and R. Vajtai "Cooling with integrated carbon nanotube films." Nanostructures in Electronics and Photonics (2008) : 83-96.


R. Vajtai and P.M. Ajayan "Controlled processes for growth of carbon nanotube structures." Materials Processing Handbook (2007) : 1-3-1-29.


“Chemical Vapor Deposition of Organized Architectures of Carbon Nanotubes for Applications”
R. Vajtai, B. Q. Wei, T. F. George and P. M. Ajayan
in Molecular Building Blocks for Nanotechnology: From Diamondoids to Nanoscale Materials and Applications, edited by G. A. Mansoori, T. F. George, L. Assoufid and G. P. Zhang (Springer, New York), Topics in Applied Physics pp. 188-211, 2007


“Synthetical Approaches to Carbon Nanotubes”
B. Q. Wei, R. Vajtai and P. M. Ajayan
in “Nanofabrication Towards Biomedical Applications: Techniques, Tools, Applications, and Impact”, edited by Challa S. S. R. Kumar, Josef Hormes, Carola Leuschner
Wiley-VCH Verlag, Weinheim, pp.33-56, 2005


B. Q. Wei, R. Vajtai, Z. J. Zhang, J.W. Ward, T.F. George, G. Ramanath and P. M. Ajayan "Tailored Growth of Carbon Nanotube Networks by Chemical Vapor Deposition." Modern Topics in Chemical Physics (2002) : 125-147.


“Oxide Layer Growth Dynamics Induced by Lasers,”
L. Fábián, Cs. Beleznai, R. Vajtai, D. Vouagner, T. F. George and L. Nánai,
International Journal of Theoretical Physics, Nonlinear Optics, and Group Theory 7, 21-35 (2001) [reprinted in Theoretical Physics 2001, edited by H. F. Arnoldus and T. F. George (Nova Science Publishers, Huntington, New York), Horizons in World Physics 238, 165-179 (2002).


 “Tailoring growth of carbon nanotubes”
Wei, B. Q. Ward, J. Zhang, Z. J. Vajtai, R. Ramanath, G. and Ajayan, P. M. (2001):
Proceedings of the International Conference on Science and Technology of Nanostructured Materials
in “Science and technology of nanostructured materials”, edited by B. K. Rao, S.M. Bose, M.P. Das, and S.N. Sahu, Nova Science Publishers, Huntington, N.Y.; pp. 121-130, 2002


“Properties and Applications of Carbon Nanotubes – Materials Science Aspects”
P.M. Ajayan and R. Vajtai
in “Carbon Filaments and Nanotubes: Common Origins, Differing Applications?”, edited by L.P. Biro, C.A. Bernardo, G.G. Tibbetts and Ph. Lambin, NATO Science Series E, 372 pp. 315-330
Kluwer Academic Publisher, Dordrecht, Boston, London, 2001

 Invited Talks

Structures and devices built of multiple layers of 2 D materials
Teranano 4, International Symposium on Terahertz Nanoscience at Suita Campus of Osaka University
Robert Vajtai
March 13-14 (2014)
Osaka, Japan


Carbon nanotube wires
Robert Vajtai
ASME 2013 International Mechanical Engineering Congress & Exposition
November 15-21
San Diego, CA


Graphene, hexagonal boron nitride and their hybrid structures
Robert Vajtai and P.M. Ajayan
APS March Meeting
March 18-22, 2013
Baltimore, MD


Porous carbon: structures built from graphene and GO
Robert Vajtai
ASME 2013 International Mechanical Engineering Congress & Exposition
November 15-21
San Diego, CA


van der Waals solids: 2D Layers to Aerogels
Robert Vajtai
ASME 2013 International Mechanical Engineering Congress & Exposition
November 15-21
San Diego, CA

Editorial Positions
 Editor, Springer Handbook of Nanomaterials. Springer. (2012 - 2013)

Supervised Theses & Dissertations
 Peng Zhang, Doctor of Philosophy Mechanical Characterizations of Two-Dimensional Materials. (2014) (Thesis Committee Member)

 Pei Dong, Doctor of Philosophy Nanomaterials Enabled Dye-sensitized Solar Cells. (2014) (Thesis Committee Member)