18luck新利原网站|新利18娱乐在线红色页面
Skip to content Our PeopleMenu Close Explore AcademicsDepartments & ProgramsMajors & MinorsGraduate Degrees and ProgramsStudent ResourcesGetting StartedAcademic PlanningScholarships, Fellowships & AwardsExperiential LearningGraduation & Post-Graduate AdvisingForms & PoliciesOffice of Graduate Studies in Arts & SciencesThe AmpersandAwards & NotablesCampus LifeHold That Thought podcastThe Ampersand Magazine Our EventsCommencement Performances & ShowsOur PeopleFaculty DirectoryStaff DirectoryFaculty & Staff ResourcesAwards & RecognitionCommittees & CouncilsFaculty Activity ReportingTenure & PromotionGraduate Student ResourcesOffice of Graduate Studies in Arts & SciencesDegrees and ProgramsGraduate AdmissionsArts & Sciences Strategic PlanThere are no boundaries to what you can achieve with a degree from Arts & Sciences.Apply TodayHomeAbout Arts & SciencesOur Alumni NetworkAcademic CalendarHow to giveContact Us Arts & Sciences Graduate Studies in A&SSophia E. HayesVice Dean of Graduate Education and Professor of ChemistryPhD, University of California, Santa Barbara BS, University of California, BerkeleyDownload CV Research Group Website Department of Chemistry research interests:Optically-Pumped NMR and Optically-Detected NMR Quadrupolar NMR of Clusters and Thin Films Carbon Capture, Utilization and Sequestrationcontact info:Pronouns: She/HerEmail: [email protected]: 314-935-4624Office: McMillen 407mailing address:Washington University CB 1134 One Brookings Dr. St. Louis, MO 63130-4899The goal of Professor Hayes' research group is a basic understanding of the structure and properties of different types of inorganic systems, including semiconductors and other optically and electronically active materials. Research Interests Optically-pumped NMR: Development and application of optically-pumped (OPNMR) and optically-detected (ODNMR) NMR of bulk semiconductors and quantum wells to gain insight into the interplay between photogeneration of conduction electrons, electron spin polarization, and resulting nuclear spin polarization. Surface and interface structures, as well as characterization of defects in the materials and spin diffusion processes that can polarize distant spins are being studied. These research foci have particular relevance to solar energy materials and LED applications. Carbon capture & sequestration: NMR characterization of CO2 (and CH4) chemisorption and physisorption in materials tailored for greenhouse gas removal. Some studies are by in situ high-pressure high-temperature CO2 NMR studies of gas, liquid, and supercritical CO2 in the presence of geological (porous) rock samples and in materials designed for the capture of CO2 or other gaseous materials (such as methane, and acid gases including SOx, NOx). Computation of NMR tensors and spectra prediction: Creation of an NMR library of spin-1/2 and quadrupolar tensors through The Materials Project, computing NMR tensors from crystal structures of dominantly inorganic compounds. Density functional theory calculations of NMR tensors in CASTEP and VASP. NMR crystallography: using the tensor catalogue, we work on refinements of atomic coordinates for materials where the NMR and X-ray diffraction lead to slightly different predictions of structure. NMR can be used to refine atomic coordinates, especially for species such H-atoms. Solid-state NMR studies on quadrupolar (nuclear spin, I > ½) systems: diverse nuclei studied, including many Group III inorganic molecular clusters that are deposited as thin metal oxide films used as dielectrics in semiconductor devices. The focus has been predominantly 27Al, 69Ga, 71Ga, 51V measurements and modeling of the quadrupolar lineshapes. Topochemistry: solid-state single crystal-to-single crystal photo-cycloaddition reactions can be monitored via solid-state NMR, given our unique hardware for incorporating laser irradiation at the sample space. NMR was able to determine reaction kinetics of cinnamic acid to truxillic acid conversions, and examine additional derivatives. Selected Publications Journal articles: West, Michael E.; Sesti, Erika L.; Willmering, Matthew M.; Wheeler, Dustin D.; Ma, Zayd, L.; *Hayes, Sophia E. “Describing Angular Momentum Conventions in Circularly Polarized Optically Pumped NMR (OPNMR) in GaAs and CdTe” J. Magn. Reson. 2021, 327, 106980. DOI: 10.1016/j.jmr.2021.106980 Sun, He; Dwaraknath, Shyam; Ling, Handong; Qu, Xiaohui; Persson, Kristin; *Hayes, Sophia “Enabling Materials Informatics for 29Si Solid-state NMR of Crystalline Materials” (Nature Publishing Group) npj Computational Materials. 2020, 6:53, 1-7. DOI: 10.1038/s41524-020-0328-3. Cui, Jinlei; Olmsted, David; Mehta, Anil K.; Asta, Mark; *Hayes, Sophia E. “NMR Crystallography: Evaluation of Hydrogen Positions in Hydromagnesite by 13C{1H} REDOR Solid-State NMR and Density Functional Theory Calculation of Chemical Shielding Tensors” Angew. Chem. Int. Ed. 2019, 58, 4210-4216. DOI: 10.1002/anie.201813306. Cui, Jinlei; Kast, Matthew G.; Hammann, Blake A.; Afriyie, Yvonne; Woods, Keenan N.; Plassmeyer, Paul N.; Perkins, Cory K.; Ma, Zayd L.; Keszler, Douglas A.; Page, Catherine J.; Boettcher, Shannon W.; *Hayes, Sophia E. “Aluminum Oxide Thin Films from Aqueous Solutions: Insights from Solid-State NMR and Dielectric Response” Chem Mater. 2018, 30, 7456-7463. DOI: 10.1021/acs.chemmater.7b05078 Chen, Chia-Hsin; Shimon, Daphna; Lee, Jason J.; Mentink-Vigier, Frederic; Hung, Ivan; Sievers, Carsten; Jones, Christopher; *Hayes, Sophia E. “The ‘Missing’ Bicarbonate in CO2 Chemisorption Reactions on Solid Amine Sorbents” J. Am. Chem. Soc. 2018 140, 8648-8651. DOI: 10.1021/jacs.8b04520 Willmering, Matthew M.; Ma, Zayd L.; Jenkins, Melanie A.; Conley, John F.; *Hayes, Sophia E. “Enhanced NMR with Optical Pumping (OPNMR) Yields 75As Signals Selectively from a Buried GaAs Interface” J. Am. Chem. Soc. 2017 139, 3930-3933. DOI: 10.1021/jacs.6b08970. Co-authored reports: Simon R. Bare, Michael Lilly, Janie Chermak, Rod Eggert, William Halperin, Scott Hannahs, Sophia Hayes, Michael Hendrich, Alan Hurd, Mike Osofsky, and Cathy Tway. "Responding to the U.S. Research Community's Liquid Helium Crisis." American Physical Society; Materials Research Society; American Chemical Society, Oct. 2016. Web. Robert Hamers, Sophia E. Hayes, Graham Peaslee “Mid-Scale Instrumentation: Regional Facilities to Address Grand Challenges in Chemistry. A workshop sponsored by the National Science Foundation.” Arlington, VA, September 29-30, 2016. Web. Awards & Honors American Physical Society, “5-sigma Physicist” Award, 2020 (for professional service to the community) TEDx Speaker - “Science the Heck Out of Climate Change” – 2019 DOE Office of Science, Team Science Award, 2017, awarded to Hayes and Sholl group members from DOE EFRC Center for Understanding and Control of Acid Gas-induced Evolution of Materials for Energy St. Louis Award, American Chemical Society, 2015 Regitze R. Vold Memorial Prize, Alpine Solid-State NMR Conference (organized under the Groupement Ampere and Int’l Society of Magnetic Resonance, ISMAR), 2009 ACS Progress/Dreyfus Lectureship, 2008 Alfred P. Sloan Research Fellow, 2007-2009 Washington Univ. Graduate Student Senate Special Recognition for Excellence in Mentoring, 2004 NSF Early Career Development (CAREER) Award, 2003 Alexander von Humboldt Research Fellow, Dept. of Physics, Univ. of Dortmund, Germany, 2001 Chemistry and Materials Science Directorate Award, Lawrence Livermore National Lab, 1999 Directorate Postdoctoral Fellow, Lawrence Livermore National Laboratory, 1998-2000 From our podcast:Communicating science with empathy and intentionSophia Hayes, professor of chemistry, is part of a growing movement at Washington University to offer students essential training in science communication. in the news:4.12.24Inside WashU’s Quantum Quest1.26.22AAAS names seven Arts & Sciences faculty as 2021 fellows7.22.21Hayes named interim vice dean of graduate education4.22.19The global helium shortage hits homeBack to AmpersandQuick LinksExplore AcademicsStudent ResourcesThe AmpersandEventsOur PeopleAbout A&SContactAcademic CalendarA&S ComputingUniversity DirectoryUniversity LibrariesInside ArtSciArts & Sciences Strategic PlanEmployment OpportunitiesCopyright 2024 by:Arts & Sciences at Washington University in St. LouisFollow Arts & SciencesInstagramFacebookTwitterLinkedInYouTubeLet your curiosity lead the way.Find out how to apply and get started todayApply Now1 Brookings Drive / St. Louis, MO 63130 / wustl.edu
