Dr. Brock has 7 years of experience in materials characterization and failure analysis of a variety of thin film technologies, including applications in consumer electronics, photovoltaics, fuel cells, and microelectromechanical systems (MEMS). He has expertise in investigation of failures associated with fracture and delamination of materials, including the effects of environmental stressors such as humidity, thermal cycling, and ultraviolet (UV) light exposure. Dr. Brock also has extensive experience in other forms of mechanical characterization, including nanoindentation and wafer curvature, as well as in high resolution microscopy and spectroscopy of engineering materials, including Atomic Force Microscopy (AFM), Scanning Electron Microscopy (SEM), X-ray Photoelectron Spectroscopy (XPS), and 3D Confocal Microscopy.
Prior to joining Exponent, Dr. Brock completed his Ph.D. at Stanford University in the department of Materials Science and Engineering, where his research focused on thermomechanical reliability of thin film devices, with a particular focus on the exploration of failure modes and quantification of related metrics in multijunction photovoltaic devices. This included studies of adhesion and delamination within antireflective structures, debonding of metal gridlines, and cohesive cracking of semiconductors. In addition to his experimental work, Dr. Brock has had an academic appointment in Materials Science and Engineering at Stanford University, where he taught the courses Mechanical Behavior Laboratory, Microstructure and Mechanical Properties, Nanomaterials Laboratory, and Materials Structure and Characterization while overseeing the undergraduate program in MSE.
CREDENTIALS & PROFESSIONAL HONORS
- Ph.D., Materials Science and Engineering, Stanford University, 2016
- M.S., Materials Science and Engineering, Northwestern University, 2011
- B.S., Materials Science and Engineering, Northwestern University, 2011
R. Brock, P. Hebert, J. Ermer, R. Dauskardt, “Degradation of Multijunction Photovoltaic Gridlines Induced via Thermal Cycling”, Solar Energy Materials and Solar Cells, 2018, 179C, p178.
R. Brock, R. Rewari, P. Hebert, J. Ermer, D. Miller, R. Dauskardt, “Quantitative Adhesion Characterization of Antireflective Coatings in Multijunction Photovoltaics”, Solar Energy Materials and Solar Cells, 2016, 153, p78.
R. Brock, F. Iacopi, A. Iacopi, L. Hold, R. Dauskardt, “Highly Compressed Nano-Layers in Epitaxial Silicon Carbide Membranes for MEMs Sensors", Proceedings of the IEEE IITC/AMC, 2014, p241.
F. Iacopi, R. Brock, A. Iacopi, L. Hold, R. Dauskardt, “Evidence of a highly compressed nanolayer at the epitaxial silicon carbide interface with silicon”, Acta Mat., 2013, 61 (17), p6533.
A. Antaris, J. Seo, R. Brock, M. Hersam, “Probing and tailoring pH-dependent interactions between block copolymers and single-walled carbon nanotubes for density gradient sorting”, J. Phys. Chem. C, 2012, 116 (37), p20103.
R. Brock*, et al, “Electronically monodisperse single-walled carbon nanotube thin films as transparent conducting anodes in organic photovoltaic devices”, Adv. Energy Mater., 2011, 1, p785. (Cover Article)
C. Tester, R. Brock, C. Wu, M. Krejci, S. Weigand, D. Joester, “In vitro synthesis and stabilization of amorphous calcium carbonate (ACC) nanoparticles within liposomes”, CrystEngComm, 2011, 13, p3975.
R. Brock, “Hands-on with Nanoindentation: An exploration of real-world mechanical properties”, North American Materials Education Symposium, 2018.
R. Brock, D. Miller, R. Dauskardt, “Adhesion of Antireflective Coatings in Multijunction Photovoltaics”, IEEE Photovoltaic Specialists Conference, 2016.
R. Brock, R. Dauskardt, et al, “Adhesion and Reliability of Complex Multijunction Photovoltaic Structures", MRS Spring Meeting, 2015.
R. Brock, R. Dauskardt, F. Iacopi, et al, “Highly Compressed Nano-Layers in Epitaxial Silicon Carbide Membranes for MEMs Sensors”, IEEE International Interconnect Technology Conference/Advanced Metallization Conference, 2014.
R. Brock, R. Dauskardt, et al, “Residual stress and fracture behavior of pressurized epitaxial SiC membranes", MRS Spring Meeting, 2014.
R. Brock, R. Dauskardt, et al, “Size-dependent tearing resistance of polymer membranes”, MRS Spring Meeting, 2013.
Lecturer, Materials Science and Engineering, Stanford University, 2016-2018