Lawrence Livermore National Laboratory

 +1 925-424-6781

Ph.D. Materials Physics
University of Science and Technology, Beijing, P. R. China
M.S. Materials Science and Engineering
North China Institute of Technology, P. R. China
B.S. Materials Science and Engineering
Zhejing University, Hangzhou, P. R. China

Research Interests

Dr. Dai is currently a Research Scientist of the Chemical & Isotopic Signatures Group within LLNL's Nuclear and Chemical Sciences Division. His research interest is to explore the relationship between microstructure of solid materials and their performances including process, behavior and mechanism. His research field deals with electron microscopy, nano-materials, nuclear forensics, energy and environmental science, and mineralogy and petrology of extraterrestrial materials.

Selected Publications

Z. R. Dai, J. C. Crowhurst, C. D. Grant, K. B. Knight, V. Tang, A. A. Chernov, E. G. Cook, J. P. Lotscher, and I. D. Hutcheon, "Exploring high temperature phenomena related to post-detonation using an electric arc", J. Appl. Phys., 114, 204901 (2013).

H. E. Mason, W. L. Du Frane, S. D.C. Walsh, Z. R. Dai, S. Charnvanichborikarn, S. A. Carroll, "Chemical and Mechanical Properties of Wellbore Cement Altered by CO2-Rich Brine Using a Multianalytical Approach ", ES & T, 47 (3), 1745-1752 (2013).

M. S. Snow, P. Zhao, Z. R. Dai, A. B. Kersting, M. Zavarin, "Neptunium(V) sorption to goethite at attomolar to micromolar concentrations", Journal of Colloid and Interface Science, 390, 176-182 (2013).

S. A. Carroll, W. W. McNab, Z. R. Dai, S. C. Torres, "Reactivity of Mount Simon Sandstone and the Eau Claire Shale Under CO2 Storage Conditions", ES & T, 47 (1), 252-261 (2013).

Z. M. Seeley, Z. R. Dai, J. D. Kuntz, N. J. Cherepy, S. A. Payne, "Phase stabilization in transparent Lu2O3:Eu ceramics by lattice expansion", Optical Materials, 35 (1), 74-78 (2012).

B.A. Powell, Z. Dai, M. Zavarin, P. Zhao, A. B. Kersting, "Stabilization of Plutonium Nano-Colloids by Epitaxial Distortion on Mineral Surfaces", ES&T 45:7, 2698–2703 (2011)

S. A. Awadalla, J. Mackenzie, H. Chen, B. Redden, G. Bindley,M. C. Duff, A. Burger, M. Groza, V. Buliga, J. P. Bradley, Z. R. Dai, N. Teslich, D. R. Black, "Characterization of detector-grade CdZnTe crystals grown by traveling heater method (THM.)", Journal of Crystal Growth 312(4), 507-513 (2010)

E. Voelkl, B. Jiang, Z. R. Dai, and J. P Bradley, "Improving Image Quality and Reducing Drift Problems via Automated Data Acquisition and Averaging in Cs-corrected TEM", Microscopy Today, 16 (6), 36-38 (2009).

J. P. Bradley, Z. R. Dai, "Analytical SuperSTEM for extraterrestrial materials research", Meteoritics & Planetary Science 44(10), 1627-1642 (2009).

M.C. Duff, D. B. Hunter, A. Burger, M. Groza, V. Buliga, J.P. Bradley, G. Graham, Z. Dai, N. Teslich, D. R. Black, A. Lanzirotti, "Characterization of heterogeneities in detector-grade CdZnTe crystals", Journal of Materials Research 24 (4), 1361-1367 (2009).

Z. W.Pan, J. D. Budai , Z. R. Dai, W. J. Liu, M. P. Paranthaman, S. Dai, "Zinc Oxide Microtowers by Vapor Phase Homoepitaxial Regrowth, Advanced Materials 21(8), 890-896 (2009).

H. Leroux, R. M. Stroud, Z. R. Dai, G. A. Graham, D. Troadec, J. P. Bradley, N. Teslich, J. Borg, A. T. Kearsley, and F. Hörz, "Transmission electron microscopy of cometary residues from micronsized craters in the Stardust Al foils", Meteoritics & Planetary Science 43, Nr 1/2, 1–18 (2008)

N. Zaitseva, S. Hamel, Z. R. Dai, C. Saw, A. Williamson, and G. Galli, "Effect of Nitrogen on the Stability of Silicon Nanocrystals Produced by Decomposition of Alkyl Silanes", J. Phys. Chem. C 112, 3585-3590 (2008).

H. A. Ishii, J. P. Bradley, Z. R. Dai, M. Chi, A. T. Kearsley, M. J. Burchell, N. D. Browning, F. Molster, "Comparison of comet 81P/Wild 2 dust with interplanetary dust from comets", Science 319, 447-450 (2008).

N. Zaitseva, Z. R. Dai, C. D. Grant, J. Harper, C. Saw, "Germanium nanocrystals synthesized in high-boiling-point organic solvents", Chemistry of Materials, 19( 21), 5174-5178 (2007).

E. M. Bringa, S.O. Kucheyev, M.J. Loeffler, R.A. Baragiola, A. G. Tielens, Z.R. Dai, G. A. Graham, S. Bajt, J.P. Bradley, C.A. Dukes, T.E. Felter, D.F. Torres, W. van Breugel, "Energetic processing of interstellar silicate grains by cosmic rays", The Astrophysical Journal, 662 (1): Part 1, 372-378 (2007).

A.T. Kearsley, G.A. Graham, M.J. Burchell, M.J. Cole, Z.R. Dai, N. Teslich, J.P. Bradley, R. Chater, P.A. Wozniakiewicz, J. Spratt, G. Jones, "Analytical scanning and transmission electron microscopy of laboratory impacts on Stardust aluminum foils: Interpreting impact crater morphology and the composition of impact residues", Meteoritics & Planetary Science 42(2), 191-210 (2007)

D. Brownlee,…Z. R. Dai, et al., "Comet 81P/Wild 2 under a microscope", Science 314, 1711-1716 (2006).

S. Bajt, Z. R. Dai, E. J. Nelson, M. A. Wall, J. B. Alameda, N. Q. Nguyen, S. L. Baker, J. C. Robinson, J. S. Taylor, "Oxidation resistance and microstructure of ruthenium-capped extrem ultraviolet lithography multilayers", J. Microlith. Microfab. Microsyst. 5 (2), APR-JUN (2006).

N. Zaitseva, Z. R. Dai, F. R. Leon, and D. Krol. Optical Properties of CdSe Superlattices, J. Am. Chem. Soc. 127, 10221-10226 (2005).

R. Erni, N. D. Browning, Z. R. Dai, and J. P. Bradley, "Analysis of Extraterrestrial Particles using Monochromated Electron Energy-Loss Spectroscopy", Micron 36, 369-379 (2005).

J. Bradley, Z. R. Dai, R. Erni, N. Browning, G. Graham, P. Weber, J. Smith, I. Hutcheon, H. Ishii, S. Bajt, C. Floss, F. Stadermann and S. Sandford, "An Astronomical 2175 Å Feature in Interplanetary Dust Particles", Science 307, 244-247 (2005).

C. Floss, F. J. Stadermann, J. P. Bradley, Z. R. Dai, S. Bajt and G. Graham, "Carbon and Nitrogen Isotopic Anomalies in an Anhydrous Interplanetary Dust Particle", Science 303, 1355 (2004).

Z. R. Dai, Z. W. Pan and Z. L. Wang, "Novel Nanostructures of Functional Oxides by Thermal Evaporation", Adv. Fun. Mater. 13, 9-25 (2003).

Z. R. Dai, Z. W. Pan and Z. L. Wang, "Growth and Structure Evolution of Novel Tin Oxide Diskettes", J. Am. Chem. Soc. 124, 8673 (2002).

Z. R. Dai, J. P. Bradley, D. J. Joswiak, D. E. Brownlee, H. G. M. Hill and M. J. Genge, "Possible in situ formation of meteoritic nanodiamonds in the early Sola System", Nature 418, 157-159 (2002).

Z. R. Dai, Z. L. Wang, and S. Sun, Shapes, "Multiple Twins and Surface Structures of Monodispersive FePt Magnetic Nanocrystals", Surf. Sci. 505, 325 (2002).

Z. W. Pan, Z. R. Dai, C. Ma, and Z. L. Wang, "Molten Gallium as A Catalyst for the Large-Scale Growth of Highly Aligned Silica Nanowires", J. Am. Chem. Soc. 124, 1817 (2002).

Z. W. Pan, Z. R. Dai, and Z. L. Wang, "Lead Oxide Nanobelts and Phase Transformation Induced by Electron Beam Irradiation", Appl. Phys. Lett. 80, 309 (2002).

Z. R. Dai, Z. W. Pan, and Z. L. Wang, "Gallium Oxide Nanoribbons and Nanosheets", J. Phys. Chem. B 106, 902 (2002).

Z. R. Dai, J. L. Gole, J. D. Stotut, and Z. L. Wang, "Tin Oxide Nanowires, Nanoribbons and Nanotubes", J. Phys. Chem. B 106, 1274 (2002).

Z. R. Daiv and J. P. Bradley, "Iron-nickel sulfides in anhydrous interplanetary dust particles", Geochim. et Cosmochim. Acta 65, 3601 (2001).

Z. R. Dai, Z. W. Pan and Z. L. Wang, "Ultra-long Single Crystalline Nanoribbons of Tin Oxide", Solid State Comm. 118, 351 (2001).

Z. R. Dai, Z. L. Wang, and S. Sun, "Phase Transformation, Coalescence and Twinning of Monodispersive FePt Nanocrystals", Nano Letters 1, 443 (2001).

Z. W. Pan, Z. R. Dai and Z. L. Wang, "Nanobelts of Semiconducting Oxides", Science 291, 1947 (2001).

Z. L. Wang, Z. R. Dai and S. Sun, "Polyhedral Shapes of Cobalt Nanocrystals and Their Effect on Ordered Assembly", Adv. Mater. 12(24), 1944 (2000).

Z. L. Wang, Z. R. Dai, Z. G. Bai, R. P. Gao and J. L. Gole, "Side-by-Side Silicon Carbide-Silica Biaxial Nanowires: Structure, structural evolution and mechanical properties", Appl. Phys. Lett. 77, 3349 (2000).

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