Search Results - "Hultman, Lars"

C 1s Peak of Adventitious Carbon Aligns to the Vacuum Level: Dire Consequences for Material's Bonding Assignment by Photoelectron Spectroscopy by Greczynski, Grzegorz, Hultman, Lars

“…The C 1s signal from ubiquitous carbon contamination on samples forming during air exposure, so called adventitious carbon (AdC) layers, is the most common…”
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Theoretical stability and materials synthesis of a chemically ordered MAX phase, Mo2ScAlC2, and its two-dimensional derivate Mo2ScC2 MXene by Meshkian, Rahele, Tao, Quanzheng, Dahlqvist, Martin, Lu, Jun, Hultman, Lars, Rosen, Johanna

“…We present theoretical prediction and experimental evidence of a new MAX phase alloy, Mo2ScAlC2, with out-of-plane chemical order. Evaluation of phase…”
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New Two-Dimensional Niobium and Vanadium Carbides as Promising Materials for Li-Ion Batteries by Naguib, Michael, Halim, Joseph, Lu, Jun, Cook, Kevin M, Hultman, Lars, Gogotsi, Yury, Barsoum, Michel W

“…New two-dimensional niobium and vanadium carbides have been synthesized by selective etching, at room temperature, of Al from Nb2AlC and V2AlC, respectively…”
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Interpretation of X-ray photoelectron spectra of carbon-nitride thin films: New insights from in situ XPS by Hellgren, Niklas, Haasch, Richard T., Schmidt, Susann, Hultman, Lars, Petrov, Ivan

“…We report on angular-resolved x-ray photoelectron spectroscopy (XPS) studies of magnetron sputtered CNx thin films, first in situ (without air exposure), then…”
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Two-Dimensional Nanocrystals Produced by Exfoliation of Ti3AlC2 by Naguib, Michael, Kurtoglu, Murat, Presser, Volker, Lu, Jun, Niu, Junjie, Heon, Min, Hultman, Lars, Gogotsi, Yury, Barsoum, Michel W.

“…2D Ti3C2 nanosheets, multilayer structures, and conical scrolls produced by room temperature exfoliation of Ti3AlC2 in HF are reported. Since Ti3AlC2 is a…”
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A general Lewis acidic etching route for preparing MXenes with enhanced electrochemical performance in non-aqueous electrolyte by Li, Youbing, Shao, Hui, Lin, Zifeng, Lu, Jun, Liu, Liyuan, Duployer, Benjamin, Persson, Per O. Å., Eklund, Per, Hultman, Lars, Li, Mian, Chen, Ke, Zha, Xian-Hu, Du, Shiyu, Rozier, Patrick, Chai, Zhifang, Raymundo-Piñero, Encarnacion, Taberna, Pierre-Louis, Simon, Patrice, Huang, Qing

“…Two-dimensional carbides and nitrides of transition metals, known as MXenes, are a fast-growing family of materials that have attracted attention as energy…”
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Origin of Chemically Ordered Atomic Laminates (i‑MAX): Expanding the Elemental Space by a Theoretical/Experimental Approach by Dahlqvist, Martin, Petruhins, Andrejs, Lu, Jun, Hultman, Lars, Rosen, Johanna

“…With increased chemical diversity and structural complexity comes the opportunities for innovative materials possessing advantageous properties. Herein, we…”
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Paradigm shift in thin-film growth by magnetron sputtering: From gas-ion to metal-ion irradiation of the growing film by Greczynski, Grzegorz, Petrov, Ivan, Greene, J. E., Hultman, Lars

“…Ion irradiation is a key tool for controlling the nanostructure, phase content, and physical properties of refractory ceramic thin films grown at low…”
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Long Electron–Hole Diffusion Length in High‐Quality Lead‐Free Double Perovskite Films by Ning, Weihua, Wang, Feng, Wu, Bo, Lu, Jun, Yan, Zhibo, Liu, Xianjie, Tao, Youtian, Liu, Jun‐Ming, Huang, Wei, Fahlman, Mats, Hultman, Lars, Sum, Tze Chien, Gao, Feng

“…Developing environmentally friendly perovskites has become important in solving the toxicity issue of lead‐based perovskite solar cells. Here, the first double…”
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Two-dimensional Mo1.33C MXene with divacancy ordering prepared from parent 3D laminate with in-plane chemical ordering by Tao, Quanzheng, Dahlqvist, Martin, Lu, Jun, Kota, Sankalp, Meshkian, Rahele, Halim, Joseph, Palisaitis, Justinas, Hultman, Lars, Barsoum, Michel W., Persson, Per O.Å., Rosen, Johanna

“…The exploration of two-dimensional solids is an active area of materials discovery. Research in this area has given us structures spanning graphene to…”
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A GaN–SiC hybrid material for high-frequency and power electronics by Chen, Jr-Tai, Bergsten, Johan, Lu, Jun, Janzén, Erik, Thorsell, Mattias, Hultman, Lars, Rorsman, Niklas, Kordina, Olof

“…We demonstrate that 3.5% in-plane lattice mismatch between GaN (0001) epitaxial layers and SiC (0001) substrates can be accommodated without triggering…”
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Transparent Conductive Two-Dimensional Titanium Carbide Epitaxial Thin Films by Halim, Joseph, Lukatskaya, Maria R, Cook, Kevin M, Lu, Jun, Smith, Cole R, Näslund, Lars-Åke, May, Steven J, Hultman, Lars, Gogotsi, Yury, Eklund, Per, Barsoum, Michel W

“…Since the discovery of graphene, the quest for two-dimensional (2D) materials has intensified greatly. Recently, a new family of 2D transition metal carbides…”
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Synthesis of Ti3AuC2, Ti3Au2C2 and Ti3IrC2 by noble metal substitution reaction in Ti3SiC2 for high-temperature-stable Ohmic contacts to SiC by Fashandi, Hossein, Dahlqvist, Martin, Lu, Jun, Palisaitis, Justinas, Simak, Sergei I., Abrikosov, Igor A., Rosen, Johanna, Hultman, Lars, Andersson, Mike, Lloyd Spetz, Anita, Eklund, Per

“…The large class of layered ceramics encompasses both van der Waals (vdW) and non-vdW solids. While intercalation of noble metals in vdW solids is known,…”
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Compensation of native donor doping in ScN: Carrier concentration control and p-type ScN by Saha, Bivas, Garbrecht, Magnus, Perez-Taborda, Jaime A., Fawey, Mohammed H., Koh, Yee Rui, Shakouri, Ali, Martin-Gonzalez, Marisol, Hultman, Lars, Sands, Timothy D.

“…Scandium nitride (ScN) is an emerging indirect bandgap rocksalt semiconductor that has attracted significant attention in recent years for its potential…”
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Mo2TiAlC2: A new ordered layered ternary carbide by Anasori, Babak, Halim, Joseph, Lu, Jun, Voigt, Cooper A., Hultman, Lars, Barsoum, Michel W.

“…Herein we report on the synthesis of a new layered ternary carbide, Mo2TiAlC2, that was synthesized by heating an elemental mixture at 1600 degree C for 4h…”
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Synthesis and Characterization of an Alumina Forming Nanolaminated Boride: MoAlB by Kota, Sankalp, Zapata-Solvas, Eugenio, Ly, Alexander, Lu, Jun, Elkassabany, Omar, Huon, Amanda, Lee, William E., Hultman, Lars, May, Steve J., Barsoum, Michel W.

“…The ‘MAlB’ phases are nanolaminated, ternary transition metal borides that consist of a transition metal boride sublattice interleaved by monolayers or…”
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Increased electromechanical coupling in w−ScxAl1−xN by Wingqvist, Gunilla, Tasnádi, Ferenc, Zukauskaite, Agne, Birch, Jens, Arwin, Hans, Hultman, Lars

“…AlN is challenged as the material choice in important thin film electroacoustic devices for modern wireless communication applications. We present the promise…”
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Phase stability and mechanical property trends for MAB phases by high-throughput ab initio calculations by Koutná, Nikola, Hultman, Lars, Mayrhofer, Paul H., Sangiovanni, Davide G.

“…MAB phases (MABs) are atomically-thin laminates of ceramic/metallic-like layers, having made a breakthrough in the development of 2D materials. Though offering…”
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Transmorphic epitaxial growth of AlN nucleation layers on SiC substrates for high-breakdown thin GaN transistors by Lu, Jun, Chen, Jr-Tai, Dahlqvist, Martin, Kabouche, Riad, Medjdoub, Farid, Rosen, Johanna, Kordina, Olof, Hultman, Lars

“…Interfaces containing misfit dislocations deteriorate electronic properties of heteroepitaxial wide bandgap III-nitride semiconductors grown on foreign…”
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Electronic structure and chemical bonding of nanocrystalline-TiC/amorphous-C nanocomposites by Magnuson, Martin, Lewin, Erik, Hultman, Lars, Jansson, Ulf

“…Theelectronic structure of nanocrystalline (nc-) TiC/amorphous C nanocomposites has beeninvestigated by soft x-ray absorption and emission spectroscopy. The…”
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