Roberto dos Reis, PhD
Scientific Officer, Materials Science and Engineering
Northwestern University
AB Wing AG1, Tech Institute
2145 Sheridan Road
Evanston, IL 60208-3113
Tel: (847) 491-7794
Email: roberto.reis@northwestern.edu
Educational/Research Background
| Current | Scientific Officer, Materials Science and Engineering (Northwestern University, USA) |
| 2014-2018 |
Materials Special Postdoc, NCEM/Molecular Foundry (LBNL, USA) |
|
2009-2013 |
PhD Physics (Federal University of Rio Grande do Sul, Brazil) |
| 2010-2013 | Visiting Scholar, Materials Science Division (LBNL, USA) |
| 2007-2009 | M.Sc. Physics (Federal University of Rio Grande do Sul, Brazil) |
| 2003-2007 | B.Sc. Physics, (Federal University of Rio Grande do Sul, Brazil) |
Research Objectives and Interests
Development and application of advanced methods for materials characterization based on Transmission Electron Microscopy, such as quantitative convergent-beam electron diffraction (CBED), High-Resolution (S)TEM, EDX and EELS, to unravel structure-property relationship in energy and electronic materials.
Application of new methods for electron diffraction, image simulation and analysis of multidimensional dataset using customized codes.
References and Publications
(for full list visit Google Scholar)
Selected Referred Journals
"Determination of the Structural Phase and Octahedral Rotation Angle in Halide Perovskites at Sub-Ångstrom Scale", dos Reis, H. Yang, C. Ophus, P. Ercius, G. Bizarri, D. Perrodin, T. Shalapska, E. Bourret, J. Ciston and U. Dahmen.
Applied Physics Letters, 112, 071901 (2018)
"Room-Temperature-Synthesized High-Mobility Transparent Amorphous CdO–Ga2O3 Alloys with Widely Tunable Electronic Bands"
Liu, Chao Ping, Chun Yuen Ho, Roberto dos Reis, Yishu Foo, Peng Fei Guo, Juan Antonio Zapien, Wladek Walukiewicz, and Kin Man Yu. ACS applied materials & interfaces 10, no. 8 (2018): 7239-7247 (2018)
"Stabilization of ferroelectric phase in tungsten capped Hf0. 8Zr0. 2O2", Golnaz Karbasian, Roberto dos Reis, Ajay K. Yadav, Ava J. Tan, Chenming Hu, and Sayeef Salahuddin.
Applied Physics Letters, 111, 022907 (2017)
"Crystalline Molybdenum Oxide Thin-Films for Application as Interfacial Layers in Optoelectronic Devices" Cauduro, A.L., dos Reis, R., Chen, G., Schmid, A.K., Méthivier, C., Rubahn, H.G., Bossard-Giannesini,L., Cruguel, H., Witkowski, N. and Madsen, M.
ACS Applied Materials & Interfaces,9(8), pp.7717-7724 (2017).
"Formation of nanoscale composites of compound semiconductors driven by charge transfer" Gao, W., dos Reis, R., Schelhas, L.T., Pool, V.L., Toney, M.F., Yu, K.M. and Walukiewicz, W.
Nano Letters,16(8), pp.5247-5254 (2016).
"Blue–green luminescent carbon nanodots produced in a silica matrix" Brito, J.B., Costa, T.M.H., Rodembusch,F.S., Konowalow, A.S., dos Reis, R.M.S., Balzaretti, N.M. and da Jornada, J.A.H.
"Electronic band structure of ZnO-rich highly mismatched ZnO1-xTex alloys" Ting, M., dos Reis, R., Jaquez, M., Dubon, O.D., Mao, S.S., Yu, K.M. and Walukiewicz, W.
Applied Physics Letters,106(9), p.092101 (2015).
"Structural defects in bulk GaN." Liliental-Weber, R. Dos Reis, M. Mancuso, C. Y. Song, I. Grzegory, S. Porowski, and M. Bockowski.
Journal of Crystal Growth 403: 66-71 (2014).
"Direct atomic imaging of antiphase boundaries and orthotwins in orientation-patterned GaAs" dos Reis, R., Ophus, C., Jimenez, J., Snure, M., Gérard, B. and Liliental-Weber, Z.
Applied Physics Letters,102(8), p.081905 (2013).
"Structural studies of GaN1‐x Asx and GaN1‐x Bix alloys for solar cell applications." Liliental‐Weber, Z., R. dos Reis, A. X. Levander, K. M. Yu, W. Walukiewicz, S. V. Novikov, and C. T. Foxon.
Physica status solidi c 9, (7): 1586-1589 (2012).
"Doping of GaN1− xAsx with high As content." Levander, A. X., S. V. Novikov, Z. Liliental-Weber, R. Dos Reis, O. D. Dubon, J. Wu, C. T. Foxon, K. M. Yu, and W. Walukiewicz.
Journal of Applied Physics 110,(9): 093702 (2011).
"Carbon redistribution in nanometric Si1-xCx layers upon ion beam synthesis of SiC by C implantation into SIMOX (1 1 1). dos Reis, R.M.S., Maltez, R.L. and Boudinov, H.
Journal of Physics D: Applied Physics, 43(39), p.395401 (2010).
Selected Conference articles (proceedings, transaction or abstract)
"Three-Dimensional Polarization by Means of Scanning HOLZ-CBED Technique" dos Reis, R., Hsu, S.L., Ophus, C., Ramesh, R. and Ciston, J.
Microscopy and Microanalysis, 24(S1), pp.178-179 (2018).
"Unraveling the Crystal Structure of All-Inorganic Halide Perovskites using CBED and Electron Ptychography" dos Reis, R., Yang, H., Ophus, C., Shalapska, T., Bizarri, G., Perrodin, D., Ercius, P., Ciston, J., Bourret, E. and Dahmen, U.
Microscopy and Microanalysis, 23(S1), pp.1468-1469 (2017).
"Towards Identification of Oxygen Point Defects by Means of Position Averaged CBED" dos Reis, R., Ophus, C., Ciston, J., Ercius, P. and Dahmen, U.
Microscopy and Microanalysis, 21(S3), pp.1097-1098 (2015).
Selected Conference (Meeting) presentations and invited talks/seminars
68th Annual Meeting of the American Crystallographic Association 2018
"Probing Properties and Structure of Complex Oxides Superlattices using Scanning Electron Nanodiffraction"
2018 Microscopy and Microanalysis Meeting
"Three-Dimensional Polarization by Means of Scanning HOLZ-CBED Technique"
67th Annual Meeting of the American Crystallographic Association 2017,
"Symmetry Group Determination and Direct Imaging of All-Inorganic Halide Perovskites CsPb(Br1-xClx)3"
2017 Microscopy and Microanalysis Meeting
"Unraveling the Crystal Structure of All-Inorganic Halide Perovskites using CBED and Electron Ptychography"
2016 Microscopy and Microanalysis Meeting
"Revealing Point Defects in a Large-Scale Scanning Diffraction Dataset"
2016 Molecular Foundry Annual User Meeting, Lawrence Berkeley National Laboratory
“Probing Properties of Matter at the Nanoscale by Scanning Electron Diffraction”
2016 Seminar at National Center for Electron Microscopy/ Lawrence Berkeley National Laboratory
“Unraveling Materials Properties by Using Reciprocal Space Information”
2015 Microscopy and Microanalysis Meeting
"Towards Identification of Oxygen Point Defects by Means of Position Averaged CBED"
MRS Spring Meeting 2015
"Tailoring the optical characteristic of ZnO nanowires by using different substrates"
MRS Spring Meeting 2013, San Francisco, CA –USA
“Transmission Electron Microscopy Studies of the orientation patterned GaAs”
Back to top