Yamaguchi, H., K. Murakami, G. Eda, T. Fujita, P. Guan, W. Wang, C. Gong, J. Boisse, S.
Miller, Muge Acik, K. Cho, Y.J. Chabal, M. Chen, F. Wakaya, M. Takai and M. Chhowalla,
Field emission from atomically thin edges of reduced graphene oxide. ACS Nano (in
review). forthcoming - Publication
Wang, W., P.-R. Cha, S, Lee, G. Kim, M.J. Kim, and K. Cho, First Principles Study of Si
Etching by CHF3 Plasma Source. Applied Surface Science (in press). forthcoming - Publication
Subramanian, R., P. Bhadrachalam, V. Ray, T. Park, J. Kim, K. Cho, and S.J. Koh,
Overcoming the intrinsic limit of Fermi-Dirac thermal smearing. Nature (in preparation). forthcoming - Publication
Wang, W., G. Lee, M. Huang, R.M. Wallace, and K. Cho. First-Principles study of GaAs
(001)-2(2x4) surface oxidation, Microelectronic Engineering (in press). forthcoming - Publication
Chen, R., Z.Z. Chen, B. Ma, X. Hao, N. Kapur, J. Hyun, K. Cho, and B. Shan. CO
Adsorption on Pt(111) and Pd(111) Surfaces: A First-Principles Based Lattice Gas MonteCarlo Study. Computational and Theoretical Chemistry (in review). forthcoming - Publication
Gong, C., L. Colombo, and K. Cho. Photo-Assisted CVD Growth of Graphene Using
Single Metal Atom as Catalyst. Nano Letters (in preparation). forthcoming - Publication
Lee, G., L. Colombo and K. Cho, Grain Boundary Effect on Electronic and Transport
Properties of Graphene. Nano Letters (in preparation). forthcoming - Publication
Xiong, K., W. Wang, R.P. Gupta, B.E. Gnade and K. Cho, Electronic structures and
stability of group VA impurities in lead telluride. Journal of Physics D: Applied Physics (in
review). forthcoming - Publication
Kapur, N., B. Shan, J. Hyun, L. Wang, S. Yang, J. Nicholas and K. Cho. First Principles
Study of CO Oxidation on Bismuth Promoted Pt(111) Surfaces, Molecular Simulation (in
press). forthcoming - Publication
Veyan, J., H.S. Choi, M. Huang, J. Ballard, S. McDonnell, M.P. Nadesalingam, H. Dong, I.
S. Chopra, W. P. Kirk, J.N. Randall, R.M. Wallace, K. Cho and Y.J. Chabal. Si2H6
dissociative chemisorption mechanism on Si(100) and Ge(100). Journal of the American
Chemical Society (in preparation). forthcoming - Publication
Research by UT Dallas engineers could lead to more efficient cooling of electronics, which would pave the way for quieter and longer-lasting computers, cellphones and other devices. Much of modern technology uses silicon as semiconductor material. But research recently published in the journal Nature Materials shows that graphene conducts heat about 20 times faster than silicon. The Nature Materials paper incorporates the findings of researchers at UT Austin, who conducted an experiment focused on graphene’s heat transfer. They used a laser beam to heat the center of a portion of graphene, then measured the temperature difference from the middle of the graphene to the edge. Cho’s theory helped explain their results. The Nature Materials experiment was done in collaboration with Shanshan Chen and Weiwei Cai of Xiamen University in Xiamen China and UT Austin; Qingzhi Wu, Columbia Mishra and Rodney Ruoff of UT Austin; Junyong Kang also of Xiamen University; and Alexander Balandin of the University of California, Riverside.
In the battle of the batteries, lithium-ion technology is the reigning champion, powering that cellphone in your pocket as well as an increasing number of electric vehicles on the road.
But a novel manganese and sodium-ion-based material developed at The University of Texas at Dallas, in collaboration with Seoul National University, might become a contender, offering a potentially lower-cost, more ecofriendly option to fuel next-generation devices and electric cars.
Battery cost is a substantial issue, said Dr. Kyeongjae Cho
, professor of materials science and engineering in the Erik Jonsson School of Engineering and Computer Science
and senior author of a paper describing the new material in the journal Advanced Materials.
They die at the most inconvenient times.
Cellphones go dark during important conversations because a battery hasn’t been recharged. Or the automotive industry revs up with excitement for a new battery-powered vehicle, but it needs frequent recharging. Or yardwork is delayed because the battery for your string trimmer is dead.
Researchers at The University of Texas at Dallas have developed a high-powered, environmentally safe lithium-sulfur substitute that could drastically lengthen battery life. Their work has been published in the journal Nature Nanotechnology
A UT Dallas researcher has made a discovery that could open the door to cellphone and car batteries that last five times longer than current ones.Dr. Kyeongjae Cho
, professor of materials science and engineering
in the Erik Jonsson School of Engineering and Computer Science
, has discovered new catalyst materials for lithium-air batteries that jumpstart efforts at expanding battery capacity. The research was published in Nature Energy
“There’s huge promise in lithium-air batteries. However, despite the aggressive research being done by groups all over the world, those promises are not being delivered in real life,” Cho said. “So this is very exciting progress. (UT Dallas graduate student) Yongping Zheng and our collaboration team have demonstrated that this problem can be solved. Hopefully, this discovery will revitalize research in this area and create momentum for further development.”
A recent article
in the journal Science
details how researchers from the Erik Jonsson School of Engineering and Computer Science
devised a simple process that dramatically increases light generation from certain atomic-sized materials.
The findings could have a broad impact in the advancement of LED displays, high efficiency solar cells, photo detectors, and nano-electronic circuits and devices.