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efficiency in outdoor-exposed technologies. His group has utilized VUV and optical spectroscopies, along with spectroscopic ellipsometry, to investigate the optical properties, electronic structure, and radiation durability of optical materials, polymers, ceramics, and liquids. He has earned patents for phase shift photomasks, transparent fluoropolymers for pellicles, photoresists and immersion fluids, and optical elements for photovoltaics. His research has contributed to the understanding of how these optical properties influence van der Waals quantum electrodynamical interactions, crucial in governing wetting phenomena and mesoscale assembly in nanotubes and biomolecular materials like DNA and proteins.
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performance and reliability of mono- and bi-facial silicon PERC modules and modeling PV fleet performance using spatio-temporal Graph Neural
Networks (stGNNs). Under his leadership, the SDLE Research Center has applied data science methodologies across a broad spectrum of energy and materials projects, including a DOE
218:
French has studied optical properties and electronic structures of ceramics, polymers, and biomolecules, employing spectroscopy and computational optics, and has explored radiation durability, photochemical degradation, and data-driven approaches to predict lifetime performance and enhance energy
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Akanbi, O. D., Bhuvanagiri, D. C., Barcelos, E. I., Nihar, A., Gonzalez
Hernandez, B., Yarus, J. M., & French, R. H. (2024). Integrating multiscale geospatial analysis for monitoring crop growth, nutrient distribution, and hydrological dynamics in large-scale agricultural systems. Journal of
226:
In the area of
Lifetime and Degradation Science (L&DS), French's focus has extended to examining long-lived environmentally-exposed materials, components, and systems, including PV technologies, roofing, and building exteriors. For projects under DOE-SETO, he has researched the lifetime
222:
French has developed non-relational, distributed computing environments based on Hadoop, Hbase, Ozone, Impala, and Spark for data science and analytics of complex systems. Through this framework, he has integrated real-world performance data with lab-based experimental datasets to elucidate
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Yue, W., Mehdi, M. R., Tripathi, P. K., Willard, M. A., Ernst, F., & French, R. H. (2024). Exploring 2D X-ray diffraction phase fraction analysis with convolutional neural networks: Insights from kinematic-diffraction simulations. MRS Advances,
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Karimi, A. M., Wu, Y., Koyuturk, M., & French, R. H. (2021, May). Spatiotemporal graph neural network for performance prediction of photovoltaic power systems. In
Proceedings of the AAAI conference on artificial intelligence, 35(17),
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degradation mechanisms and pathways active over the lifespan of technologies. His methods encompass network modeling, structural equations, and graphs to quantify and simulate global spatio-temporal systems such as PV power plants.
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Karimi, M. A., Pierce, G. B., Fada, S, J., Parrilla, A. N., French, H. R., Braid, L. J. (2020, May 8). “PVimage: Package for PV Image
Analysis and Machine Learning Modeling.” SDLE Res. Cntr., Case Western Reserve
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Ciardi, T. G., Nihar, A., Chawla, R., Akanbi, O., Tripathi, P. K., Wu, Y., ... & French, R. H. (2024). Materials data science using CRADLE: A distributed, data-centric approach. MRS Communications,
349:
French, R. H., Parsegian, V. A., Podgornik, R., Rajter, R. F., Jagota, A., Luo, J., ... & Zemb, T. (2010). Long range interactions in nanoscale science. Reviews of Modern
Physics, 82(2), 1887–1944.
335:
French, R. H., Glass, S. J., Ohuchi, F. S., Xu, Y. N., & Ching, W. Y. (1994). Experimental and theoretical determination of the electronic structure and optical properties of three phases of ZrO
146:. He received the 2020 Faculty Distinguished Research Award and the 2023 Innovation Week Inventor Award from Case Western Reserve University, in addition to being honored as a Senior Member of the
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in 1996. In 2010, he joined Case
Western Reserve University as the F. Alex Nason Professor and has been the Kyocera Professor of Ceramics at CWRU since 2016. He is also the director of the
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Materials Data
Science for Reliability and Degradation Center (MDS-Rely) and the NSF-sponsored IUCRC Center for Advancing Sustainable and Distributed Fertilizer Production (CASFER).
499:
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Bryant, C., Wheeler, R. N., Rubel, F., & French, H. R. (2017, December 20). “kgc: Koeppen-Geiger
Climatic Zones.” SDLE Res. Cntr., Case Western Reserve University.
332:
McNeil, L. E., Grimsditch, M., & French, R. H. (1993). Vibrational spectroscopy of aluminum nitride. Journal of the
American Ceramic Society, 76(5), 1132–1136.
654:"Optical element producing a modulated region of increased light intensity and optically enhanced photovoltaic cell and LED lighting device including the same"
878:
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Wang, M., et al. (2021, April 30). “SunsVoc: Constructing Suns-Voc from Outdoor Time-series I-V Curves.” SDLE Res. Cntr., Case Western Reserve University. h
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French, R. H., & Tran, H. V. (2009). Immersion lithography: photomask and wafer-level materials. Annual Review of Materials Research, 39(1), 93–126.
147:
873:
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584:"Optical Properties and London Dispersion Forces of Amorphous Silica Determined by Vacuum Ultraviolet Spectroscopy and Spectroscopic Ellipsometry"
420:
668:"van der Waals–London dispersion interactions for optically anisotropic cylinders: Metallic and semiconducting single-wall carbon nanotubes"
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Huang, W. H., et al. (2023, September 6). “netSEM: Network Structural Equation Modeling.” SDLE Res. Cntr., Case Western Reserve University.
187:
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Fan, Y., Yu, Xuanji., Weiser, R., Wu, Y., French, H. R. (2023). “PVplr-stGNN: Python.” SDLE Res. Cntr., Case Western Reserve University.
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Bradley, H. A., et al. (2024, June 18). “FAIRmaterials: Python.” SDLE Res. Cntr., Case Western Reserve University, Cleveland OH, USA.
437:
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Huang, W. H., et al. (2021, April 14). “ddiv: Data Driven I-V Feature Extraction.” SDLE Res. Cntr., Case Western Reserve University.
203:
186:. From 1993 to 2002, while still working at DuPont, he was a Visiting Scientist for a month a year in Manfred RĂĽhle's lab at
167:
69:
682:"Optical properties and electronic transitions of DNA oligonucleotides as a function of composition and stacking sequence"
710:"Evaluation of PV Module Packaging Strategies of Monofacial and Bifacial PERC Using Degradation Pathway Network Modeling"
500:"Case Western Reserve wins $ 14.2 million federal grant to launch innovative materials data science Center of Excellence"
640:"Use of partially fluorinated polymers in applications requiring transparency in the ultraviolet and vacuum ultraviolet"
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Center of Excellence for Materials Data Science for Stockpile Stewardship, and a Co-Principal Investigator of both the
738:"Using spatio-temporal graph neural networks to estimate fleet-wide photovoltaic performance degradation patterns"
104:
84:
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598:"Optical properties of AlN determined by vacuum ultraviolet spectroscopy and spectroscopic ellipsometry data"
808:"Systems and methods for data analytics for virtual energy audits and value capture assessment of buildings"
298:
Gordon, E. J., et al. (2024, June 18). “FAIRmaterials: R.” SDLE Res. Cntr., Case Western Reserve University.
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French graduated with a Bachelor of Science with Distinction in Materials Science and Engineering from
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752:"Photovoltaic lifetime and degradation science statistical pathway development: acrylic degradation"
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and electronic structure, degradation science of materials in outdoor-exposed technologies such as
724:"Parallel-friendly Spatio-Temporal Graph Learning for Photovoltaic Degradation Analysis at Scale"
142:, registering multiple patents. His publications comprise research articles and a book entitled
888:
198:. His academic career began as an adjunct professor in the Materials Science Department at the
766:"Spatiotemporal Graph Neural Network for Performance Prediction of Photovoltaic Power Systems"
454:
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1989 – R&D Award for LPLS-521 VUV-LPLS Spectrophotometer, Research & Development World
779:
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Van Benthem, K., Elsässer, C., & French, R. H. (2001). Bulk electronic structure of SrTiO
123:
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is a materials scientist, engineer, academic and author. He is the Kyocera Professor in the
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329:, with comparison to AlO and AIN. Journal of the American Ceramic Society, 73(3), 477–489.
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696:"Statistical and Domain Analytics Applied to PV Module Lifetime and Degradation Science"
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626:"Ultraviolet and vacuum ultraviolet transparent polymer compositions and their uses"
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Durability and Reliability of Polymers and Other Materials in Photovoltaic Modules
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in 1979, and in 1985 obtained a PhD in Materials Science and Engineering from the
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Durability and Reliability of Polymers and Other Materials in Photovoltaic Modules
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French began his research career in 1985 in Central Research and Development at
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2020 – Faculty Distinguished Research Award, Case Western Reserve University
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346:: Experiment and theory. Journal of applied physics, 90(12), 6156–6164.
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2023 – Innovation Week Inventor Award, Case Western Reserve University
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514:"Center for Materials Data Science for Stockpile Stewardship–People"
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612:"Photomask blanks comprising transmissive embedded phase shifter"
438:"Roger French receives University Distinguished Researcher Award"
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556:"Bulk electronic structure of SrTiO 3: Experiment and theory"
130:. While at DuPont he worked on semiconductor lithography,
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French, R. H. (1990). Electronic band structure of Al
29:Materials scientist, engineer, academic and author
231:funded initiative on building energy efficiency.
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368:Geovisualization and Spatial Analysis, 8(1), 9.
255:1998 – Fulrath Award, American Ceramics Society
836:"Richard M. Fulrath Award–History of Awardees"
570:"Vibrational Spectroscopy of Aluminum Nitride"
879:Massachusetts Institute of Technology alumni
469:"Fellows of The American Ceramic Society"
390:"Case School of Engineering–Roger French"
110:French's research interests at CWRU span
874:Case Western Reserve University faculty
869:Fellows of the American Ceramic Society
188:Max-Planck-Institut fĂĽr Metallforschung
55:PhD., Materials Science and Engineering
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105:Case Western Reserve University (CWRU)
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794:"Environmental Security Technology"
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859:Materials scientists and engineers
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780:"Making solar panels last longer"
339:. Physical Review B, 49(8), 5133.
118:, and employing data science and
822:"R&D 100 Archive of Winners"
407:"Google Scholar–Roger H. French"
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421:"Google Patents–Roger French"
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542:"CASFER–Roger French, PhD"
200:University of Pennsylvania
128:high-performance computing
101:Case School of Engineering
884:Cornell University alumni
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152:American Ceramic Society
528:"MDS-Rely–Roger French"
150:and as a Fellow of the
486:"IEEE–Roger H. French"
455:"CWRU–Innovation Week"
97:Roger Harquail French
20:Roger Harquail French
38:Academic background
241:James Bruce French
164:Cornell University
112:optical properties
66:Cornell University
316:Selected articles
271:Software packages
247:Awards and honors
239:He is the son of
132:phase shift masks
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140:photoresists
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81:Institutions
280:University.
124:distributed
52:Engineering
853:Categories
373:References
61:Alma mater
192:Stuttgart
158:Education
136:pellicles
43:Education
214:Research
204:DOE-NNSA
196:Germany
229:ARPA-E
184:DuPont
178:Career
138:, and
122:using
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360:1–11.
303:Books
46:BS.,
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148:IEEE
126:and
50:and
208:NSF
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