JEOL 2100 Probe-Corrected Analytical Electron Microscope


  • Aberration-corrected STEM imaging for atomic structures
  • Elemental mapping with EDS
  • EELS/EFTEM for elemental mapping and thickness measurements


Tao Ma


Room G032 


Publications, presentations, and posters resulting from work on this instrument should state: “The authors acknowledge the financial support of the University of Michigan College of Engineering and NSF grant #DMR-0723032, and technical support from the Michigan Center for Materials Characterization.


  • Accelerating Voltage: 100 and 200 kV
  • Filament: Zirconated Tungsten (100) thermal field emission tip
  • Vacuum
    • Gun ~1.0 x 10-9 torr
    • Column ~1.0 x 10-7 torr
  • Resolution
    • CTEM 0.10 nm lattice / 0.0.19 nm point-to-point
    • STEM 0.10 nm Cs-Corrected HAADF (high angle annular dark field)
  • XEDS System
    • Horizontal Ultra-thin Window Si-Li X-ray detector (active area = 30 mm2) capable of detecting elements with Z >5.
    • EDAX r-TEM Detector with EDAX acquisition software
  • EELS System
    • Gatan #863 Tridiem Imaging Filter (GIF) for electron energy loss spectroscopy and imaging.
  • Image Acquisition & Analysis System
    • Gatan Ultrascan 1000 CCD TV camera (Post GIF)
  • Compatible sample Holders
    • JEOL Single-Tilt Stage
    • JEOL Double-Tilt Analytical Stage
    • Gatan #646 Double-Tilt (x=±35 degrees, y=±35 degrees) Low Background (Be) Stage with Faraday cup.
    • Gatan #636 Double-Tilt (x=±35 degrees, y=±35 degrees) Low Background (Be) Liquid-Nitrogen Stage.
    • Gatan #652 Heating Holder with a maximum operating temperature of 1000 degrees Celsius.
  • Other Accessories
    • Free lens control, fully independent control of all lenses.
    • TEMCon PC control software.


  1. Enhanced Optical Asymmetry in Supramolecular Chiroplasmonic Assemblies with Long-Range Order, J. Lu, Y. Xue, K. Bernardino, N-N. Zhang, W.R. Gomes, N.S. Ramesar, S. Liu, Z. Hu, T. Sun, A. Farias de Moura, N.A. Kotov, K. Liu, Science, 371(6536), 1368-1374
  2. Chloride Oxidation as an Alternative to the Oxygen-Evolution Reaction on HxWO3 Photoelectrodes, A.G. Breuhaus-Alvarez, Q. Cheek, J.J. Cooper, S. Maldonado, B.M. Bartlett, J. Phys. Chem. C, 125(16), 8543-8550, 2021
  3. Effects of Minor Alloying Elements on Alumina Transformation During the Transient Oxidation of β-NiAl, T.L. Barth, E.A. Marquis, Oxidation of Metals, 95, 293-309, 2021
  4. The Role of Co-injected Helium on Swelling and Cavity Evolution at High Damage Levels in Ferritic-Martensitic Steels, D. Woodley, S. Taller, Z. Jiao, K. Sun, G.S. Was, Journal of Nuclear Materials, 550, 152912, 2021
  5. Predicting Structural Material Degradation in Advanced Nuclear Reactors with Ion Irradiation, S. Taller, G. VanCoevering, B.D. Wirth, G.S. Was, Scientific Reports, 11, 2949, 2021
  6. Using Interaction of Nano Dipoles to Control the Growth of Nanorods, Y. Tang, S.M. Premathilaka, T. Weeraddana, S.R. Kandel, Z. Jiang, C.P. Neupane, H. Xi, W. Wan, L. Sun, J. Phys. Chem. Lett., 12, 1, 232-237, 2021
  7. Hierarchical Microstructures and Deformation Behavior of Laser Direct-Metal-Deposited Cu-Fe Alloys, A. Chatterjee, E. Sprague, J. Mazumder, A. Misra, Materials Science and Engineering A, 802, 140659, 2021
  8. Deformation Behavior of Nanoscale Al–Al2Cu Eutectics Studied by in situ Micropillar Compression, S.J. Wang, D.Y. Xie, J. Wang, A. Misra, Materials Science and Engineering A, 800, 140311, 2021
  9. Fast Organic Vapor Phase Deposition of Thin Films in Light-Emitting Diodes, B. Qu, K. Ding, S. Hou, S. Morris, M. Shtein, S.R. Forrest, ACS Nano, 14(10) , 14157-14163, 2020
  10. Microstructural Characterization of Cold-Worked 316 Stainless Steel Flux Thimble Tubes Irradiated up to 100 dpa in a Commercial Pressurized Water Reactor, M. Song, K.G. Field, R.M. Cox, G.S. Was, Journal of Nuclear Materials, 541, 152400, 2020
  11. Understanding Bubble and Void Nucleation in Dual Ion Irradiated T91 Steel using Single Parameter Experiments, S. Taller, G.S. Was, Acta Materialia, 198, 47-60, 2020
  12. Microstructural Responses of Alloy 625 and Alloy 625 Plus Under Ion and Proton Irradiations, L-J. Yu, E.A. Marquis, JOM, 72, 8, 2020
  13. Dislocation Loop Evolution and Radiation Hardening in Nickel-Based Concentrated Solid Solution Alloys, P. Xiu, Y.N. Osetsky, L. Jiang, G. Velisa, Y. Tong, H. Bei, W.J. Weber, Y. Zhang, L. Wang, Journal of Nuclear Materials, 538, 152247, 2020
  14. Evolution of Microstructure and Nanohardness of SiC Fiber-Reinforced SiC Matrix Composites under Au Ion Irradiation, C. Ye, J. Xue, T. Liu, R. Shu, Y. Yan, Y. Liao, Q. Ren, G. Ren, K. Sun, L. Jiang, P. Xiu, L. Wang, Ceramics International, 46(6), 8165-8173, 2020
  15. Thermally Induced Restructuring of Pd@CeO2 and Pd@SiO2 Nanoparticles as a Strategy for Enhancing Low-Temperature Catalytic Activity, A.J. Hill, C.Y. Seo, X. Chen, A. Bhat, G.B. Fisher, A. Lenert, J.W. Schwank, ACS Catalysis, 10, 1731-1741, 2020
  16. Hillock Formation in Co-deposited Thin Films of Immiscible Metal Alloy Systems, M. Powers, B. Derby, E. Raeker, N. Champion, A. Misra, Thin Solid Films, 137692, 2019
  17. A Single-Junction Cathodic Approach for Stable Unassisted Solar Water Splitting, Y. Wang, Y. Wu, J. Schwartz, S. Sung, R. Hovden, Z. Mi, Joule, 3(10), 2444-2456, 2019 
  18. Emulation of Fast Reactor Irradiated T91 using Dual Ion Beam Irradiation, S. Taller, Z. Jiao, K. Field, G.S. Was, Journal of Nuclear Materials, 527, 151831, 2019 
  19. Diverse Nanoassemblies of Graphene Quantum Dots and Their Mineralogical Counterparts, N.A. Kotov, Z-b. Qu, W-J. Feng, Y. Wang, F. Romanenko, Angewandte Chemie, 58, 2-11, 2019 
  20. Protection of GaInP2 Photocathodes by Direct Photoelectrodeposition of MoSx Thin Films, M. Lancaster, R. Mow, J. Liu, Q. Cheek, M.M. Macinnes, M.M. Al-Jassim, T.G. Deutsch, J.L. Young, S. Maldonado, ACS Applied Materials & Interfaces, 11(28), 25115-25122, 2019
  21. Oxide Growth and Dissolution on 316L Stainless Steel during Irradiation in High Temperature Water, R.D. Hanbury, G.S. Was, Corrosion Science, 157, 305-311, 2019
  22. Micro- and Nano-Scale Intermetallic Phases in AA2070-T8 and their Corrosion Behavior, Y. Zhu, K. Sun, J. Garves, L.G. Bland, J. Locke, J. Allison, G.S. Frankel, Electrochimica Acta, 319, 634-648, 2019 
  23. Radiation Damage and Irradiation-Assisted Stress Corrosion Cracking of Additively Manufactured 316L Stainless Steels, M. Song, M. Wang, X. Lou, R.B. Rebak, G.S. Was, Journal of Nuclear Materials, 513, 33-44, 2019
  24. Dual Ion Irradiation of Commercial and Advanced Alloys: Evaluating Microstructural Resistance for High Dose Core Internals, C.R. Lear, M. Song, M. Wang, G.S. Was, Journal of Nuclear Materials, 516, 125-134, 2019
  25. Interfacial Reactions of Titanium/Gold Ohmic Contacts with Sn-Doped β-Ga2O3, M. Lee, R.L. Peterson, APL Materials, 7(2), 022524, 2019
  26. Stability and Strain-Driven Evolution of β′ Precipitate in Mg-Y Alloys, E.L.S. Solomon, A.R. Natarajan, A.M. Roy, V. Sundararaghavan, A. Van der Ven, E.A. Marquis, Acta Materialia, 166, 148-157, 2019
  27. Annealing Induced Interfacial Evolution of Titanium/Gold Metallization on Unintentionally Doped β-Ga2O3, M. Lee, R.L. Peterson, ECS Journal of Solid State Science and Technology, 8(7), Q3176-Q3179, 2019
  28. Charge Transfer and Collection in Dilute Organic Donor-Acceptor Heterojunction Blends, K. Ding, X. Liu, S.R. Forrest, Nano Letters, 18(5), 3180-3184, 2018
  29. Radiation Tolerance of Commercial and Advanced Alloys for Core Internals: A Comprehensive Microstructural Characterization, M. Song, C.R. Lear, C.M. Parish, M. Wang, G.S. Was, Journal of Nuclear Materials, 510, 396-413, 2018
  30. The Influence of Helium on Cavity Evolution in Ion-Irradiated T91, A.M. Monterrosa, Z. Jiao, G.S. Was, Journal of Nuclear Materials, 509, 707-721, 2018
  31. The Influence of Carbon on Cavity Evolution in Ion-Irradiated Ferritic-Martensitic Steels, A.M. Monterrosa, D. Woodley, Z. Jiao, G.S. Was, Journal of Nuclear Materials, 509, 722-735, 2018
  32. Surface-Reactive Patchy Nanoparticles and Nanodiscs Prepared by Tandem Nanoprecipitation and Internal Phase Separation, D. Varadharajan, H. Turgut, J. Lahann, H. Yabu, G. Delaittre, Advanced Functional Materials, 28(39), 1800846, 2018
  33. Particle Growth in an Isoprene-Rich Forest: Influences of Urban, Wildfire, and Biogenic Air Masses, M.J. Gunsch, S.A. Schmidt, D.J. Gardner, A.L. Bondy, N.W. May, S.B. Bertman, K.A. Pratt, A.P. Ault, Atmospheric Environment, 178, 255-264, 2018
  34. Deformation Behavior of β′ and β′′′ Precipitates in Mg-RE Alloys, E.L.S. Solomon, E.A. Marquis, Materials Letters, 216, 67-69, 2018
  35. Heteroepitaxy of Fin-Shaped InGaN Nanoridge Using Molecular Beam Epitaxy, Y. Park, J. Gim, R. Yalisove, R. Hovden, Z. Mi, Crystal Growth and Design, 18, 5750-5756, 2018
  36. Intermetallic Phases in Aluminum Alloys and Their Roles in Localized Corrosion, Y. Zhu, K. Sun, G.S. Frankel, Journal of the Electrochemical Society, 165(11), C807-C820, 2018
  37. Probing Long-Range Ordering in Nickel-Base Alloys with Proton Irradiation, M. Song, Y. Yang, M. Wang, W. Kuang, C.R. Lear, G.S. Was, Acta Materialia, 156, 446-462, 2018
  38. Use of Nitrogen-Containing Carbon Supports to Control the Acidity of Supported Heteropolyacid Model Catalysts, X. Zhao, X. Li, J. Chen, M.A. Barteau, Industrial and Engineering Chemistry Research, 57(42), 13999-14010, 2018
  39. Synthesis and Enhanced Linear and Nonlinear Optical Properties of Chromophore-Au Metal Cluster Oligomers, R. Ho-Wu, K. Sun, T. Goodson III, Journal of Physical Chemistry C, 122, 2315-2329, 2018
  40. The Effect of Cold Rolling on Grain Boundary Structure and Stress Corrosion Cracking Susceptibility of Twins in Alloy 690 in Simulated PWR Primary Water Environment, W. Kuang, G.S. Was, C. Miller, M. Kaufman, T. Alam, B. Gwalani, R. Banerjee, Corrosion Science, 130, 126-137, 2018
  41. Multi-Building Block Janus Synthesized by Seed-Mediated Self-Assembly for Enhanced Photothermal Effects and Colored Brownian Motion in an Optical Trap, K. Sansanaphongpricha, M.C. DeSantis, H.W. Chen, W. Cheng, K. Sun, B. Wen, D.X. Sun, Small, 13(6), 1602569, 2017
  42. Assembly of Mesoscale Helices with Near-Unity Enantiomeric Excess and Light-Matter Interactions for Chiral Semiconductors, W. Feng, J. Kim, X. Wang, H.A. Calcaterra, Z. Qu, L. Meshi, N.A. Kotov, Science Advances, 3, 1601159, 2017
  43. 1.3 μ m Optical Interconnect on Silicon: A Monolithic III-Nitride Nanowire Photonic Integrated Circuit, A. Hazari, F.C. Hsiao, L. Yan, J. Heo, J.M. Millunchick, J.M. Dallesasse, P. Bhattacharya, IEEE Journal of Quantum Electronics, 53(4), 1-9, 2017
  44. Shape Evolution of Highly Lattice-Mismatched InN/InGaN Nanowire Heterostructures, L. Yan, A. Hazari, P. Bhattacharya, J.M. Millunchick, Journal of Electronic Materials, 47(2), 966-972, 2017
  45. Structural Differences between Capped GaSb Nanostructures Grown by Stranski-Krastanov and Droplet Epitaxy Growth Modes, M. DeJarld, L. Yan, M. Luengo-Kovac, V. Sih, J. Millunchick, Journal of Applied Physics, 121(3), 34301, 2017
  46. Droplet Induced Compositional Inhomogeneities in GaAsBi, C. Ryan Tait, Lifan Yan, and J.M. Millunchick, Applied Physics Letters, 111(4), 42105, 2017
  47. Enhanced Photocatalytic Hydrogen Generation of Nano-Sized Mesoporous InNbO4 Crystals Synthesized via a Polyacrylamide Gel Route, M. Zhou, X.T. Zu, K. Sun, W. Liu, X. Xiang, Chemical Engineering Journal, 313, 99-108, 2017
  48. Characterization of M2X formed during 5 MeV Fe2+ Irradiation, E. Getto, K. Sun, G. Was, Journal of Nuclear Materials, 485, 154-158, 2017
  49. The Effect of Injected Interstitials on Void Formation in Self-Ion Irradiated Nickel Containing Concentrated Solid Solution Alloys, T. Yang, C. Lu, K. Jin, Y. Zhang, H. Bei, L. Wang, Journal of Nuclear Materials, 488, 328-337, 2017
  50. Misfit-Driven β′′′ Precipitate Composition and Morphology in Mg-Nd Alloys, S. DeWitt, E.L.S. Solomon, A.R. Natarajan, V. Araullo-Peters, S. Rudraraju, L.K. Aagesen, B. Puchala, E.A. Marquis, A. Van der Ven, K. Thornton, J.E. Allison, Acta Materialia, 136, 378-389, 2017
  51. Early Precipitate Morphologies in Mg-Nd-(Zr) Alloys, E.L.S. Solomon, V. Araullo-Peters, J.E. Allison, E.A. Marquis, Scripta Materialia, 128, 14-17, 2017
  52. The Co-Evolution of Microstructure Features in Self-Ion Irradiated HT9 at Very High Damage Levels, E. Getto, G. Vancoevering, G.S. Was, Journal of Nuclear Materials, 484, 193-208, 2017
  53. Engineering the Optical and Catalytic Properties of Co-Catalyst/Semiconductor Photocatalysts, P.A. Hernley, S.A. Chavez, J.P. Quinn, S. Linic, ACS Photonics, 4, 979-985, 2017
  54. The Oxidation of Alloy 690 in Simulated Pressurized Water Reactor Primary Water, W. Kuang, M. Song, P. Wang, G.S. Was, Corrosion Science, 126, 227-237, 2017
  55. Direct Observation of Hydrogenation and Dehydrogenation of a Zirconium Alloy, H.H. Shen, X.T. Zu, B. Chen, C.Q. Huang, K. Sun, Journal of Alloys and Compounds, 659, 23-30, 2016
  56. Tuning Ionic Transport in Memristive Devices by Graphene with Engineered Nanopores, J. Lee, C. Du, K. Sun, E.M. Kioupakis, W.D. Lu, ACS Nano, 10(3), 3571-3579, 2016
  57. Pd-W Alloy Electrocatalysts and their Catalytic Property for Oxygen Reduction, Y. Dai, P. Yu, Q. Huang, K. Sun, Fuel Cells, 16(2), 165-169, 2016
  58. Enhanced Emission from Single Isolated Gold Quantum Dots Investigated using Two-Photon-Excited Fluorescence Near-Field Scanning Optical Microscopy, N. Abeyasinghe, S. Kumar, K. Sun, J. F. Mansfield, R. Jin, T. Goodson III, Journal of American Chemical Society, 138(50), 16299-16307, 2016
  59. Kinetic Trapping of Immisicible Metal Atoms into Bimetallic Nanoparticles through Plasmonic Visible Light-Mediated Reduction of a Bimetallic Oxide Precursor: Case Study of Ag-Pt Nanoparticle Synthesis, U. Aslam, S. Linic, Chemistry of Materials, 28(22), 8289-8295, 2016
  60. Methodology for Determining Void Swelling at Very High Damage under Ion Irradiation, E. Getto, K. Sun, S. Taller, A.M. Monterrosa, Z. Jiao, G.S. Was, Journal of Nuclear Materials, 477, 273-279, 2016
  61. Void Swelling and Microstructure Evolution at Very High Damage Levels in Self-Ion Irradiated Ferritic-Martensitic Steels, E. Getto, K. Sun, A.M. Monterrosa, Z. Jiao, M.J. Hackett, G.S. Was, Journal of Nuclear Materials, 480, 159-176, 2016
  62. Lake Spray Aerosol: A Chemical Signature from Individual Ambient Particles, J.L. Axson, N.W. May, I.D. Colón-Bernal, K.A. Pratt, A.P. Ault, Environmental Science and Technology, 50(18), 9835-9845, 2016
  63. An InN/InGaN/GaN Nanowire Array Guided Wave Photodiode on Silicon,  A. Hazari, M.Z. Baten, L. Yan, J.M. Millunchick, P. Bhattacharya, Applied Physics Letters, 109(19), 191102, 2016
  64. On the Early Stages of Precipitation in Dilute Mg-Nd Alloys, A.R. Natarajan, E.A. Solomon, B. Puchala, E.A. Marquis, A. Van der Ven, Acta Materialia, 2016
  65. Towards an Understanding of Tensile Deformation in Ti-Based Bulk Metallic Glass Matrix Composites with BCC Dendrites, J. Kolodziejska, H. Kozachkov, K. Kranjc, A.H. Hunter, E.A. Marquis, K. Flores, W. Johnson, D. Hofmann, Scientific Reports, 2016
  66. Engineering Complex, Layered Metal Oxides: High Performance Nickelate Nanostructures for Surface Oxygen Exchange and Reduction, J. Ma, X. Carneiro, K. Gu, H. Qin, H. L. Xin, K. Sun, E. Nikolla, ACS Catalysis, 5, 4013-4019, 2015
  67. High-Quality II-VI Films Grown on Amorphous Substrates Using Tunable Tetradymite Templates, A. Stoica, L. Endicott, H.H. Shen, W. Liu, K. Sun, C. Uher, R. Clarke, Applied Physics Letters, 105(22),  221606, 2014
  68. Ordered Horizontal Sb2Te3 Nanowires Induced by Femtosecond Lasers, W. Li, V.A. Stoica, K. Sun, W. Liu, L. Endicott, J. Walrath, Y.H. Lin, K.P. Pipe, R. Goldman, C. Uher, R. Clarke, Applied Physics Letters, 105(20), 201904, 2014
  69. Origins of Interlayer Formation and Misfit Dislocation Displacement in the Vicinity of InAs/GaAs Quantum Dots, S. Huang, S.J. Kim, X.Q. Pan, and R.S. Goldman, Applied Physics Letters, 105, 032107, 2014
  70. Direct Fabrication of Graphene on SiO2 Enabled by Thin Film Stress Engineering, D.Q. McNerny, B. Viswanath, D. Copic, F.R. Laye, C. Prohoda, A.C. Brieland-Shoultz, E.S. Polsen, N.T. Dee, V.S. Veerasamy, A.J. Hart, Scientific Reports, 4, 5049, 2014