Publications

Boehm, A.M., Doiron, C.F., Sinclair, M.B., Brener, I., Sarma, R., Ohta, T., & Ohta, T. (2024). Near-field imaging of optical resonances in silicon metasurfaces using photoelectron microscopy. APL Photonics, 9(6). 10.1063/5.0193683

Ohta, T., Boehm, A.M., Doiron, C.F., Gennaro, S., Kim, A.R., Sinclair, M.B., Beechem, T., Brener, I., Sarma, R., & Sarma, R. (2023). Near-field Imaging of Optical Resonance Modes in Silicon Metasurfaces Using Photoelectron Microscopy [Conference Presentation]. 10.2172/2430393

Boehm, A.M., Ohta, T., Kim, A.R., Jarzembski, A., Smyth, C.M., Sugar, J.D., Bartelt, N.C., Leonard, F., Fonseca, J.J., Robinson, J.T., Lu, T.M., & Lu, T.M. (2023). Engineering of Two-Dimensional Transition Metal Dichalcogenide Interfaces [Conference Presentation]. https://doi.org/10.2172/2430602

Boehm, A.M., Ohta, T., Kim, A.R., Jarzembski, A., Sugar, J.D., Fonseca, J.J., Robinson, J.T., & Robinson, J.T. (2023). Engineering of Two-Dimensional Transition Metal Dichalcogenide Interfaces [Conference Presentation]. 10.2172/2430673

Boehm, A.M., Doiron, C.F., Brener, I., Sarma, R., Ohta, T., & Ohta, T. (2023). Near‐field Imaging of Optical Resonance Modes in Silicon Metasurfaces Using Photoelectron Microscopy [Conference Presentation]. 10.2172/2431276

Boehm, A.M., Fonseca, J.J., Thurmer, K., Sugar, J.D., Spataru, C.D., Robinson, J.T., Ohta, T., & Ohta, T. (2023). Engineering of Nanoscale Heterogeneous Transition Metal Dichalcogenide-Au Interfaces. Nano Letters, 23(7), pp. 2792-2799. 10.1021/acs.nanolett.3c00080

Doiron, C.F., Brener, I., Sarma, R., Ohta, T., Boehm, A.M., & Boehm, A.M. (2023). Near‐field Imaging of Optical Resonance Modes in Silicon Metasurfaces Using Photoelectron Microscopy [Conference Presentation]. 10.2172/2431519

Ohta, T. (2023). Interaction mechanism of transition metal phthalocyanines on transition metal nitride supports. Applied Surface Science, 614. 10.1016/j.apsusc.2022.156204

Boehm, A.M., Ohta, T., Thuermer, K., Sugar, J.D., Spataru, C.D., Foulk, J.W., Robinson, J.T., & Robinson, J.T. (2022). Engineering of Nanoscale Heterogenous Transition Metal Dichalcogenide-Au Interfaces [Conference Presentation]. 10.2172/2005950

Boehm, A.M., Fonseca, J., Thurmer, K., Sugar, J.D., Spataru, C.D., Robinson, J., Ohta, T., & Ohta, T. (2022). Engineering of Nanoscale Heterogenous Transition Metal Dichalcogenide-Au Interfaces [Conference Presentation]. 10.2172/2005871

Moore, C.H., Bussmann, E., Berg, M., Ohta, T., Hopkins, M.M., & Hopkins, M.M. (2022). Exploring Dependencies of Work Function on Topography and the Application to Micron-scale Field Emission Model for PIC-DSMC Simulations [Conference Presentation]. 10.2172/2004806

Boehm, A.M., Berg, M., Thomas, C., Smith, S., Spataru, C.D., Thurmer, K., Sugar, J.D., Ohta, T., Fonseca, J.J., Robinson, J.T., Liu, F., Chan, C.K., Mohite, A.D., Beechem, T.E., & Beechem, T.E. (2022). Imaging atomically thin transition metal dichalcogenides using deep ultraviolet photoelectron emission microscopy [Conference Presentation]. 10.2172/2004199

Boehm, A.M., Ohta, T., Thurmer, K., Sugar, J.D., Fonseca, J.J., Robinson, J.T., & Robinson, J.T. (2022). Engineering of Nanoscale Heterogenous Transition Metal Dichalcogenide-Au Interfaces [Conference Presentation]. 10.2172/2003058

Ohta, T., Boehm, A.M., Spataru, C.D., Thurmer, K., Sugar, J.D., Thomas, C.J., Fonseca, J.J., Robinson, J.T., & Robinson, J.T. (2022). Electronic Structure, Stacking Arrangement, and the Interaction Strength of Tungsten Disulfide at the Gold Contact [Conference Presentation]. 10.2172/2003139

Bussmann, E., Smith, S.W., Scrymgeour, D., Brumbach, M.T., Lu, P., Dickens, S.M., Michael, J.R., Ohta, T., Hjalmarson, H.P., Schultz, P.A., Clem, P., Hopkins, M.M., Moore, C., & Moore, C. (2022). Atomic step disorder on polycrystalline surfaces leads to spatially inhomogeneous work functions. Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films, 40(2). https://doi.org/10.1116/6.0001729

Kazanowska, B.A., Sapkota, K.R., Lu, P., Talin, A.A., Bussmann, E., Ohta, T., Gunning, B.P., Jones, K.S., Wang, G.T., & Wang, G.T. (2022). Fabrication and field emission properties of vertical, tapered GaN nanowires etched via phosphoric acid. Nanotechnology, 33(3). 10.1088/1361-6528/ac2981

Rice, A., Tait, C., Lee, S.R., Deitz, J.I., Rodriguez, M.A., Pan, W., Ohta, T., Alliman, D., Peake, G., Sandoval, A., Valdez, N.R., Sharps, P., & Sharps, P. (2021). Heteroepitaxy of Dirac semimetal Cd3As2 by MOCVD [Conference Presentation]. 10.2172/1906634

Ohta, T., Thomas, C.J., Spataru, C.D., Fonseca, J.J., Robinson, J.T., & Robinson, J.T. (2021). Electronic Structure and Stacking Arrangement of Tungsten Disulfide at the Gold Contact. ACS Nano, 15(11), pp. 18060-18070. 10.1021/acsnano.1c06676

Smyth, C.M., Cain, J.M., Lang, E.J., Madden, N.J., Hattar, K., Yan, X., Yuan, J., Bland, M., Ohta, T., Sangwan, V., Hersam, M., Chou, S.S., Lu, T.M., & Lu, T.M. (2021). Heavy Ion Irradiation Effects on MoS2 Memtransistors [Conference Presentation]. 10.2172/1899528

Ohta, T., Berg, M., Liu, A., Smith, S., Copeland, R., Chan, C., Mohite, A.D., Beechem, T.E., & Beechem, T.E. (2021). Sub-surface imaging of atomically-thin semiconductors beneath dielectrics based on optical standing wave using photoelectron emission microscopy with deep-ultraviolet photoexcitation [Conference Presentation]. 10.2172/1891974

Kazanowska, B.A., Sapkota, K.R., Lu, P., Talin, A.A., Bussmann, E., Ohta, T., Gunning, B.P., Jones, K., Wang, G.T., & Wang, G.T. (2021). Fabrication and field emission properties of vertical, tapered GaN nanowires etched via phosphoric acid [Conference Presentation]. 10.2172/1882100

Schultz, P.A., Hjalmarson, H.P., Berg, M., Bussmann, E., Scrymgeour, D., Ohta, T., Moore, C.H., & Moore, C.H. (2021). First-principles calculations of metal surfaces. II. Properties of low-index platinum surfaces toward understanding electron emission. Physical Review B, 103(19). 10.1103/physrevb.103.195427

Sharma, P.A., Ohta, T., Sugar, J.D., Michael, J.R., & Michael, J.R. (2021). Ex Situ Photoelectron Emission Microscopy of Polycrystalline Bismuth and Antimony Telluride Surfaces Exposed to Ambient Oxidation. ACS Applied Materials and Interfaces, 13(15), pp. 18218-18226. 10.1021/acsami.0c22725

Beechem, T.E., Ohta, T., Berg, M., Mohite, A., & Mohite, A. (2021). Polarization, DUV-Photoemission & Electromagnetic Field Imaging [Conference Presentation]. 10.2172/1888714

Hopkins, M.M., Bussmann, E., Ohta, T., Jindal, A.K., Roberds, N.A., Moore, C., & Moore, C. (2021). Developing Field Emission Models Employing Nanoscale Surface Characterization [Conference Presentation]. 10.2172/1881673

Moore, C.H., Bussmann, E., Ohta, T., Jindal, A.K., Roberds, N.A., Hopkins, M.M., & Hopkins, M.M. (2021). Micron-scale Field Emission Model for PIC-DSMC Simulations Based on Nanoscale Surface Characterization [Conference Poster]. 10.2172/1855332

Hopkins, M.M., Jindal, A.K., Bussmann, E., Ohta, T., Berg, M., Thomas, C., Scrymgeour, D., Clem, P., Moore, C.H., & Moore, C.H. (2020). Employing Nanoscale Surface Characterizations in a Field Emission Model [Conference Poster]. 10.2172/1835000

Bussmann, E., Ohta, T., Kazanowska, B.A., Wang, G.T., Tandon, R., & Tandon, R. (2020). Stronger field-emission science via coupling novel nanoscale imaging techniques. 10.2172/1670519

Thomas, C., Diantonio, C., Chavez, T.P., Montoya, P., Garcia, E., Dickens, S.M., Brumbach, M.T., Chow, R., Rosenberg, S.G., Ohta, T., & Ohta, T. (2020). ZnO Update (06/29/2020) [Presentation]. https://www.osti.gov/biblio/1808029

Moore, C.H., Jindal, A.K., Bussmann, E., Ohta, T., Berg, M., Thomas, C., Clem, P., Hopkins, M.M., & Hopkins, M.M. (2020). Progress in micron-scale field emission models based on nanoscale surface characterization for use in PIC-DSMC vacuum arc simulations [Conference Presentation]. Proceedings - International Symposium on Discharges and Electrical Insulation in Vacuum, ISDEIV. 10.2172/1888975

Ohta, T., Berg, M., Foulk, J.W., Chan, C., Keyshar, K., Zhang, X., Vajtai, R., Gupta, G., Ajayan, P., Mohite, A., & Mohite, A. (2019). Experimental Determination of the Ionization Energies of MoSe2 WS2 and MoS2 Using Photoemission Electron Microscopy [Conference Poster]. https://www.osti.gov/biblio/1643573

Ohta, T. (2019). Experimental Determination of the Ionization Energies of MoSe2 WS2 and MoS2 Using Photoemission Electron Microscopy [Presentation]. https://www.osti.gov/biblio/1646412

Moore, C.H., Jindal, A.K., Bussmann, E., Ohta, T., Berg, M., Thomas, C., Scrymgeour, D., Clem, P., Hopkins, M.M., & Hopkins, M.M. (2019). Field Emission Model for PIC-DSMC Simulations Based on Nanoscale Surface Characterization [Conference Poster]. https://www.osti.gov/biblio/1641939

Jindal, A.K., Moore, C.H., Bussmann, E., Ohta, T., Berg, M., Thomas, C., Scrymgeour, D., Clem, P., Hopkins, M.M., & Hopkins, M.M. (2019). Modeling the Role of Beta on Vacuum Field Emission in PIC DSMC Simulations: Scalilng from Nano to Meso Scale [Conference Poster]. https://www.osti.gov/biblio/1641970

Ohta, T. (2019). PEEM as a new Metrology Tool to Examine the Electronic Structures of 2D Crystals on Silicon Oxide [Conference Poster]. https://www.osti.gov/biblio/1641566

Crawford, M.H., Rice, A., Allerman, A., Spataru, C.D., Foulk, J.W., Ohta, T., & Ohta, T. (2019). Hexagonal BN: Recent Advances and Potential for UV Optoelectronics (invited) [Conference Poster]. https://www.osti.gov/biblio/1641674

Ohta, T., Berg, M., Foulk, J.W., Chan, C., Keyshar, K., Bilgin, I., Liu, F., Yamaguchi, H., Zhang, X., Vajtai, R., Gupta, G., Kar, S., Ajayan, P., Mohite, A.D., & Mohite, A.D. (2019). Electronic band alignment of few-layer transition metal dichalcogenides on SiO2 [Conference Poster]. https://www.osti.gov/biblio/1639692

Crawford, M.H., Rice, A., Allerman, A., Foulk, J.W., Ohta, T., Medlin, D.L., Spataru, C.D., Figiel, J.J., Foulk, J.W., Sharps, P., & Sharps, P. (2019). Growth of hBN by High-Temperature Metal-Organic Chemical Vapor Deposition [Conference Poster]. https://www.osti.gov/biblio/1599274

Ohta, T. (2019). AFRL cathode electron microscopy update 2019-02 [Presentation]. https://www.osti.gov/biblio/1602926

Ohta, T. (2019). LaB6 nanostructures - wet vs dry etch [Slides]. 10.2172/1491599

Ohta, T. (2019). Bi2Te3 bare vs Al2O3 covered [Slides]. 10.2172/1491600

Ohta, T., Robinson, J.T., Culbertson, J., Berg, M., & Berg, M. (2018). Work function variations in twisted graphene layers. Scientific Reports, 8(1). 10.1038/s41598-018-19631-4

Ohta, T. (2018). Epi-graphene PEEM summary (cw laser comissioning) [Presentation]. https://www.osti.gov/biblio/1574574

Ohta, T., Copeland, R., & Copeland, R. (2018). Testing the possibility of magnetic domain imaging based on circular & linear dichroism using photoemission electron microscopy. 10.2172/1760415

Ohta, T., Berg, M., Kephart, J.M., Munshi, A., Sampath, W.S., Chan, C., & Chan, C. (2018). Photoemission electron microscopy as a new tool to study the electronic properties of an inhomogeneous semiconductor for photovoltaics [Conference Poster]. https://www.osti.gov/biblio/1592642

Hopkins, M.M., Berg, M., Bussmann, E., Smith, S., Scrymgeour, D., Ohta, T., Clem, P., Moore, C.H., & Moore, C.H. (2018). Detailed Characterization of Surface Structure and Influence on Field Emission [Conference Poster]. 10.1109/DEIV.2018.8536891

Ohta, T. (2018). PEEM capability at CINT Sandia National Laboratories [Presentation]. https://www.osti.gov/biblio/1570952

Bussmann, E., Ohta, T., Scrymgeour, D., Brumbach, M.T., Smith, S., Hjalmarson, H.P., Schultz, P.A., Clem, P., Hopkins, M.M., Moore, C.H., & Moore, C.H. (2018). Workfunction of Pt thin films with disorder [Conference Poster]. https://www.osti.gov/biblio/1526804

Bussmann, E., Ohta, T., Scrymgeour, D., Brumbach, M.T., Smith, S., Hjalmarson, H.P., Schultz, P.A., Clem, P., Hopkins, M.M., Moore, C.H., Berg, M., & Berg, M. (2018). Field emission from Pt thin films with disorder [Conference Poster]. https://www.osti.gov/biblio/1526805

Ohta, T. (2018). How we map potential landscapes using photoemission electron microscopy [Presentation]. https://www.osti.gov/biblio/1529838

Hopkins, M.M., Berg, M., Bussmann, E., Smith, S., Scrymgeour, D., Ohta, T., Clem, P., Moore, C.H., & Moore, C.H. (2018). Detailed characterization of surface structure and influence on field emission [Conference Poster]. 10.1109/DEIV.2018.8536891

Ohta, T. (2018). How we map potential landscapes using photoemission electron microscopy [Presentation]. https://www.osti.gov/biblio/1515725

Bussmann, E., Smith, S., Scrymgeour, D., Ohta, T., Hjalmarson, H.P., Schultz, P.A., Clem, P., Hopkins, M.M., Moore, C.H., & Moore, C.H. (2018). CHARACTERIZING THE INFLUENCE OF ELECTRODE SURFACE STRUCTURE ON FIELD EMISSION [Conference Poster]. https://www.osti.gov/biblio/1515636

Bussmann, E., Berg, M., Scrymgeour, D., Brumbach, M.T., Ohta, T., Smith, S., Hjalmarson, H.P., Schultz, P.A., Clem, P., Hopkins, M.M., Moore, C.H., & Moore, C.H. (2018). Field emission from Pt thin films with disorder [Conference Poster]. https://www.osti.gov/biblio/1515739

Allerman, A., Rice, A., Crawford, M.H., Foulk, J.W., Ohta, T., Spataru, C.D., Figiel, J.J., Smith, M.L., & Smith, M.L. (2018). Chemical Vapor Deposition of Hexagonal Boron Nitride (invited) [Conference Poster]. https://www.osti.gov/biblio/1525587

Schultz, P.A., Hjalmarson, H.P., Bussmann, E., Hopkins, M.M., Smith, S., Clem, P., Scrymgeour, D., Berg, M., Ohta, T., Moore, C.H., & Moore, C.H. (2018). Computing properties of Pt surfaces for understanding electron emission [Conference Poster]. https://www.osti.gov/biblio/1518545

Moore, C.H., Berg, M., Bussmann, E., Ohta, T., Scrymgeour, D., Smith, S., Schultz, P.A., Hjalmarson, H.P., Clem, P., Hopkins, M.M., & Hopkins, M.M. (2018). Advancing electrode models for PIC-DSMC simulation of vacuum discharge between real surfaces [Conference Poster]. https://www.osti.gov/biblio/1523774

Berg, M., Kephart, J.M., Munshi, A., Sampath, W.S., Ohta, T., Chan, C., & Chan, C. (2018). Local Electronic Structure Changes in Polycrystalline CdTe with CdCl2 Treatment and Air Exposure. ACS Applied Materials and Interfaces, 10(11), pp. 9817-9822. 10.1021/acsami.7b18963

Bussmann, E., Smith, S., Scrymgeour, D., Ohta, T., Hjalmarson, H.P., Schultz, P.A., Clem, P., Hopkins, M.M., Moore, C.H., & Moore, C.H. (2018). CHARACTERIZING THE INFLUENCE OF ELECTRODE SURFACE STRUCTURE ON FIELD EMISSION [Conference Poster]. https://www.osti.gov/biblio/1575338

Berg, M., Hjalmarson, H.P., Scrymgeour, D., Brumbach, M.T., Schultz, P.A., Clem, P., Hopkins, M.M., Moore, C.H., Ohta, T., Smith, S., Bussmann, E., & Bussmann, E. (2018). Work function of platinum thin films with disorder [Conference Poster]. https://www.osti.gov/biblio/1503439

Ohta, T., Berg, M., Chan, C., Kephart, J.M., Munshi, A., Sampath, W.S., & Sampath, W.S. (2018). Photoemission electron microscopy as a new tool to study the electronic properties of an inhomogeneous semiconductor for photovoltaics [Conference Poster]. https://www.osti.gov/biblio/1505280

Rice, A., Allerman, A., Crawford, M.H., Foulk, J.W., Ohta, T., Spataru, C.D., Figiel, J.J., Smith, M.L., & Smith, M.L. (2018). Metal-Organic Chemical Vapor Deposition of Hexagonal Boron Nitride (invited) [Conference Poster]. https://www.osti.gov/biblio/1513705

Ohta, T., Robinson, J.T., Culbertson, J., Berg, M., & Berg, M. (2017). WorkFunctionVariationsinTwistedGrapheneLayers [Conference Poster]. https://www.osti.gov/biblio/1513662

Crawford, M.H., Rice, A., Allerman, A., Foulk, J.W., Ohta, T., Medlin, D.L., Spataru, C.D., Figiel, J.J., Smith, M.L., & Smith, M.L. (2017). Properties of Hexagonal BN Grown by High Temperature Metal-Organic Vapor Phase Epitaxy [Conference Poster]. https://www.osti.gov/biblio/1482470

Ohta, T., Foulk, J.W., Smith, S., Berg, M., Chan, C., Liu, F., Mohite, A.D., Copeland, R., & Copeland, R. (2017). Standing-wave assisted sub-surface imaging using photoemission electron microscopy [Presentation]. https://www.osti.gov/biblio/1484565

Ohta, T. (2017). LEEM-PEEM: a new tool to study? [Presentation]. https://www.osti.gov/biblio/1509966

Rice, A., Allerman, A., Crawford, M.H., Foulk, J.W., Ohta, T., Medlin, D.L., Spataru, C.D., Figiel, J.J., Smith, M.L., & Smith, M.L. (2017). Effects of Deposition Temperature and Ammonia Flow on MOCVD Hexagonal Boron Nitride [Conference Poster]. https://www.osti.gov/biblio/1478153

Ohta, T., Berg, M., Chan, C., Keyshar, K., Gupta, G., Ajayan, P., Mohite, A., & Mohite, A. (2017). PEEM as a new tool to study the Electronic Properties of 2D Crystals on Silicon Oxide [Conference Poster]. https://www.osti.gov/biblio/1479184

Keyshar, K., Kunttal, ., Berg, M., Zhang, X., Xiang, ., Vajtai, R., Robert, ., Gupta, G., Gautam, ., Chan, C., Foulk, J.W., Ajayan, P.M., Pulickel, ., Mohite, A.D., D, A., Ohta, T., & Ohta, T. (2017). Experimental Determination of the Ionization Energies of MoSe₂, WS₂, and MoS₂ on SiO₂ Using Photoemission Electron Microscopy. ACS Nano, 11(8). 10.1021/acsnano.7b03242

Rice, A., Allerman, A., Crawford, M.H., Foulk, J.W., Ohta, T., Spataru, C.D., Medlin, D.L., Figiel, J.J., Smith, M.L., & Smith, M.L. (2017). Effects of Deposition Temperature and Ammonia Flow on MOCVD Hexagonal Boron Nitride [Conference Poster]. https://www.osti.gov/biblio/1459602

Ohta, T. (2017). Photoemission electron microscopy as a new tool to study the electronic properties of transition metal dichalcogenides and inhomogeneous semiconductors [Presentation]. https://www.osti.gov/biblio/1460252

Rice, A., Allerman, A., Crawford, M.H., Foulk, J.W., Ohta, T., Medlin, D.L., Spataru, C.D., Figiel, J.J., Smith, M.L., & Smith, M.L. (2017). Vapor Phase Epitaxy of Hexagonal Boron Nitride [Conference Poster]. https://www.osti.gov/biblio/1462924

Berg, M., Ohta, T., Chan, C., Keyshar, K., Mohite, A.D., Bilgin, I., Liu, F., Yamaguchi, H., Vajtai, R., Gupta, G., Kar, S., Ajayan, P., & Ajayan, P. (2017). Layer-Dependent Band Alignment of MoS2 WS2 and MoSe2 Flakes on SiO2 Measured by Photoemission Electron Microscopy [Conference Poster]. https://www.osti.gov/biblio/1457891

Ohta, T., Berg, M., Chan, C., Keyshar, K., Gupta, G., Ajayan, P., Mohite, A., Robinson, J., Kephart, J.M., Sampath, W.S., & Sampath, W.S. (2017). PEEM as a new tool to study the Electronic Properties of 2D Crystals and Polycrystalline Semiconductor [Conference Poster]. https://www.osti.gov/biblio/1456494

Berg, M., Ohta, T., Chan, C., Keyshar, K., Mohite, A.D., Bilgin, I., Liu, F., Yamaguchi, H., Vajtai, R., Gupta, G., Kar, S., Ajayan, P., & Ajayan, P. (2017). Layer-dependent measurements of electronic band alignment for individual MoS2 flakes supported on SiO2 using photoemission electron microscopy (PEEM) with deep ultraviolet illumination [Conference Poster]. https://www.osti.gov/biblio/1456480

Rice, A., Allerman, A., Crawford, M.H., Foulk, J.W., Ohta, T., Medlin, D.L., Spataru, C.D., Figiel, J.J., Smith, M.L., & Smith, M.L. (2017). Effects of Temperature and Ammonia on MOCVD Hexagonal BN [Conference Poster]. https://www.osti.gov/biblio/1456484

Berg, M., Chan, C., Ohta, T., Kephart, J., Sampath, W.S., & Sampath, W.S. (2017). Effects of CdCl2 treatment on the local electronic properties of polycrystalline CdTe measured with photoemission electron microscopy [Conference Poster]. https://www.osti.gov/biblio/1456604

Ohta, T. (2017). PEEM‐iv vs hu‐scan: case study for graphene folds on SiO2. 10.2172/1346336

Ohta, T. (2017). graphene/SiO2/Si wafer PEEM summary sample#01. 10.2172/1346337

Foulk, J.W., Howell, S.W., Goldflam, M., Peters, D., Ohta, T., Nogan, J., McDonald, A., Hamilton, A.B., Ruiz, I., Shaffer, R., & Shaffer, R. (2017). Infrared Chameleon: Graphene Phonons & the Impact of their Interplay on Photodetection [Presentation]. https://www.osti.gov/biblio/1429446

Ohta, T., Berg, M., Keyshar, K., M Kephart, J., Foulk, J.W., Vajtai, R., Ajayan, P., Mohite, A.D., Sampath, W.S., Chan, C., & Chan, C. (2017). Photoemission electron microscopy as a new tool to study the electronic properties of 2D crystals and inhomogeneous semiconductors [Conference Poster]. 10.1017/S1431927617008182

Foulk, J.W., Goldflam, M., Peters, D., Howell, S.W., Ohta, T., Ruiz, I., Nogan, J., Hamilton, A.B., Shaffer, R., & Shaffer, R. (2016). Infrared Chameleon [Presentation]. https://www.osti.gov/biblio/1413577

Crawford, M.H., Allerman, A., Rice, A., Foulk, J.W., Ohta, T., Medlin, D.L., Spataru, C.D., Figiel, J.J., Smith, M.L., & Smith, M.L. (2016). Excitonic Properties of Hexagonal BN Grown by High-Temperature Metal-Organic Vapor Phase Epitaxy [Conference Poster]. https://www.osti.gov/biblio/1404793

Berg, M., Ohta, T., Chan, C., Keyshar, K., Mohite, A.D., Bilgin, I., Liu, F., Yamaguchi, H., Vajtai, R., Gupta, G., Kar, S., Ajayan, P., & Ajayan, P. (2016). Electronic band alignment of few-layer MoS2 on SiO2 [Conference Poster]. https://www.osti.gov/biblio/1394727

Ahmed, A.S., Wen, H., Ohta, T., Zhu, T., Foulk, J.W., Kawakami, R.K., & Kawakami, R.K. (2016). Molecular beam epitaxy growth of SrO buffer layers on graphite and graphene for the integration of complex oxides. Journal of Crystal Growth, 447(C), pp. 5-12. 10.1016/j.jcrysgro.2016.04.057

Foulk, J.W., Shaffer, R., McDonald, A., Hamilton, A.B., Nogan, J., Ohta, T., Howell, S.W., & Howell, S.W. (2016). Self-Heating and Failure in Scalable Graphene Devices. Scientific Reports, 6. 10.1038/srep26457

Foulk, J.W., Shaffer, R., Howell, S.W., Ohta, T., Nogan, J., McDonald, A., Diaconescu, B., Hamilton, A.B., Robinson, J.T., & Robinson, J.T. (2016). The Flat Chameleon: Graphene & the Primacy of Interlayer Interactions [Presentation]. https://www.osti.gov/biblio/1368733

Ohta, T. (2016). Developing Surface Micro-Spectroscopy to study Nanomaterials? Electronic Structure [Presentation]. https://www.osti.gov/biblio/1367037

Foulk, J.W., Kowalski, B., Brumbach, M.T., McDonald, A., Spataru, C.D., Howell, S.W., Ohta, T., Pask, J., Kalugin, N., & Kalugin, N. (2016). Oxidation of Ultrathin GaSe [Conference Poster]. 10.1063/1.4934592

Foulk, J.W., McDonald, A., Ohta, T., Howell, S.W., Spataru, C.D., Kalugin, N.G., & Kalugin, N.G. (2015). Oxidation of ultrathin GaSe. Applied Physics Letters, 107(17). 10.1063/1.4934592

Ohta, T. (2015). Strategic Development of the Idea. LEEM-PEEM Studies of InGaN-based Heterostructures. 10.2172/1221950

Armstrong, A., Ohta, T., & Ohta, T. (2015). Advanced UWBG Heterostructure Characterization [Presentation]. https://www.osti.gov/biblio/1328170

Peters, D., Kim, J.K., Leonhardt, D., Foulk, J.W., Howell, S.W., Wendt, J.R., Ohta, T., Montoya, J., & Montoya, J. (2015). Plasmonic Nanoantennas for Enhanced Midwave and Longwave Infrared Imaging [Conference Poster]. https://www.osti.gov/biblio/1331670

Ohta, T. (2014). LARGE-AREA EPITAXIAL GRAPHENE LAYER [Presentation]. https://www.osti.gov/biblio/1244915

Ohta, T., Diaconescu, B., & Diaconescu, B. (2014). Atomically thin heterostructures based on single-layer tungsten diselenide and graphene. Nano Letters, 14(12), pp. 6936-6941. 10.1021/nl503144a

Diaconescu, B., Ohta, T., Foulk, J.W., Swartzentruber, B., Bartelt, N.C., Feibelman, P.J., & Feibelman, P.J. (2014). Growth of atomically thick protected metal films at the buffer layer/SiC interface [Conference Poster]. https://www.osti.gov/biblio/1315148

Ohta, T., Lee, S.R., Smith, M.L., Koleske, D., Diaconescu, B., Crawford, M.H., & Crawford, M.H. (2014). LEEM-PEEM study of surface defects surface potential and compositional inhomogeneities in InGaN-based heterostructures [Conference Poster]. https://www.osti.gov/biblio/1315256

Howell, S.W., Foulk, J.W., Ohta, T., Hattar, K., Dickerson, J., & Dickerson, J. (2014). Continued Development of Dual-Gated Bilayer Graphene Device Structures [Conference Poster]. https://www.osti.gov/biblio/1315011

Chan, C., Ohta, T., Kellogg, G., Mansfield, L., Ramanathan, K., Noufi, R., & Noufi, R. (2014). Direct Observation of Grain Boundary PN Junction Potentials in CIGS Using Photoemission and Low Energy Electron Microscopy (PELEEM) [Conference Poster]. 10.1109/PVSC.2014.6925298

Chan, C., Ramanathan, K., Korgel, B., Ohta, T., Modine, N.A., Dwyer, D., & Dwyer, D. (2014). Spectroscopic Photoemission Electron Microscopy (Spec-PEEM) for Imaging Nanoscale Variations in the Chemical and Electronics States of Thin-Film Photovoltaics: CY14 Q1 Update [Presentation]. https://www.osti.gov/biblio/1496688