Erin L. Ratcliff

Portrait of Erin L. Ratcliff
eratcliff8@gatech.edu

Erin L. Ratcliff is a Full Professor in the School of Materials Science and Engineering and the School of Chemistry and Biochemistry at the Georgia Institute of Technology and holds a joint appointment at the National Renewable Energy Laboratory.  Prof. Ratliff is also the Associate Director of Scientific Continuity for Director of the currently funded Energy Frontier Research Center (EFRC) entitled “Center for Soft PhotoElectroChemical Systems (SPECS)”, a center which she directed at her prior appointment at University of Arizona.  

Her group “Laboratory for Interface Science for Printable Electronic Materials” uses a combination of applications and devices with electrochemistry, spectroscopies, microscopies, and synchrotron-based techniques to understand fundamental structure-property relationships of next-generation materials for energy conversion and storage and biosensing. Materials of interest include metal halide perovskites, π-conjugated materials, colloidal quantum dots, and metal oxides. Current research is focused on mechanisms of electron transfer and transport across interfaces, including semiconductor/electrolyte interfaces and durability of printable electronic materials.

Her research program has been funded by the Department of Energy Basic Energy Sciences, the Solar Energy Technology Office, Office of Naval Research, National Science Foundation, and the Nano Bio Materials Consortium.

Professor, School of Materials Science and Engineering
Professor, School of Chemistry and Biochemistry
IRI/Group and Role
Energy > Faculty Council
Energy > Research Community
Matter and Systems > Affiliated Faculty
Energy > Faculty
University, College, and School/Department
Georgia Institute of Technology > College of Engineering > School of Materials Science Engineering
Georgia Institute of Technology > College of Sciences > School of Chemistry & Biochemistry
Research Areas
Matter and Systems
  • Computing and Communication Technologies
Energy
  • Fuels
  • Water, Wind, and Solar
  • Energy Storage
  • Energy and National Security
  • Advanced Manufacturing for Energy

Casey Wichman

Casey Wichman's profile picture
wichman@gatech.edu

Dr. Casey Wichman is an applied microeconomist working on issues at the intersection of environmental and public economics. His research focuses on how people interact with the natural and built environment, and what that behavior reveals about the value of environmental amenities. His research spans water and energy demand, valuation of environmental resources and infrastructure, urban transportation, public goods provision, demand for outdoor recreation, and climate change. Methodologically, he relies on the application of program evaluation techniques, often using large micro-data sets, to estimate causal effects of environmental policies on economic behavior. 

Prior to joining Georgia Tech, Dr. Wichman served as the Research Director of the Energy and Environment Lab at the University of Chicago and as a Fellow at Resources for the Future, an environmental economics think-tank in Washington, DC. He received his Ph.D. from the University of Maryland in 2015, and his doctoral work earned outstanding doctoral dissertation awards from both the Association of Environmental and Resource Economists and the Association of Agricultural and Applied Economists.

Associate Professor, School of Economics
Additional Research

Applied EconometricsEnvironmental EconomicsPublic Economics

IRI/Group and Role
Energy > Faculty Council
Energy > Research Community
Energy
University, College, and School/Department
Georgia Institute of Technology > Ivan Allen College of Liberal Arts > School of Economics
Research Areas
Energy
  • Energy Economics, Policy, and Public Health

Beril Toktay

Beril Toktay's profile picture
beril.toktay@scheller.gatech.edu

Dr. Beril Toktay is Regents' Professor and the Brady Family Chairholder in the Scheller College of Business. She serves as Executive Director of the Brook Byers Institute for Sustainable Systems. A globally recognized leader in sustainable operations management, Dr. Toktay has dedicated her career to bridging academic excellence with real-world impact in sustainability research and education.

Since joining Georgia Tech in 2005, Dr. Toktay has established herself as an influential leader in sustainability scholarship and cross-institute initiatives. She founded the Ray C. Anderson Center for Sustainable Business and co-created the Center for Serve-Learn-Sustain (SLS). Under her leadership as Executive Faculty Co-Director, the SLS team expanded sustainability-focused academic community engagement across Georgia Tech until its 2024 institutionalization as the Center for Sustainable Communities Research and Education within BBISS. Most recently, she co-chaired Georgia Tech's Sustainability Next Strategic Plan Implementation Team, under which Georgia Tech recommitted to growing BBISS, elevated and restructured the Office of Sustainability, and launched the Sustain-X startup accelerator, educational innovation and transdisciplinary research seed grant programs, the Climate Action Plan, and the Sustainability Education Curriculum Committee.

A Distinguished Fellow of the INFORMS Manufacturing and Service Operations Management Society, Dr. Toktay is internationally recognized for her research in sustainable operations management spanning circular economy models and climate mitigation strategies. Her circular economy research includes developing improved Extended Producer Responsibility cost allocation mechanisms recommended for adoption by the UK government. Her climate mitigation work features in a multi-university project that identified Georgia's top twenty decarbonization solutions, catalyzing the creation of the 70-member Drawdown Georgia Business Compact facilitated by the Ray C. Anderson Center.

Dr. Toktay serves on the boards of the New York Climate ExchangeGeorgia Cleantech Innovation Hub, and Alliance for Research on Corporate Sustainability. Her former professional service includes VP for Marketing, Communications and Advocacy at INFORMS, Department Co-Editor for "Health, Environment, and Society" at Manufacturing & Service Operations Management and Area Editor for "Environment, Energy, and Sustainability" at Operations Research. She served as the Scheller College of Business ADVANCE Professor from 2012-2020.

Dr. Toktay’s research has earned recognition including being named among the World's Top Business and Management Scientists (Research.com, 2024),the  M&SOM Best Paper Award (2021), the M&SOM Responsible Research Award (2019), and the Management Science Best Paper in Operations Management Award (2015).

Her commitment to developing the next generation of sustainability leaders earned her Georgia Tech's Outstanding Doctoral Thesis Advisor Award (2018) and recognition as a E3 Impact Award Finalist (2019) by the Metro Atlanta Chamber of Commerce for Serve-Learn-Sustain's impact on Atlanta communities. She co-developed the Carbon Reduction Challenge, an interdisciplinary program that engages undergraduate students in climate intrapreneurship and which earned top ten finalist recognition from Reimagine Education among 1,184 projects from 39 countries.

Dr. Toktay holds a Ph.D. in Operations Research from MIT, an M.S. in Industrial Engineering from Purdue University, and B.S. degrees in Industrial Engineering and Mathematics from Bogazici University.

Executive Director, Brook Byers Institute for Sustainable Systems
Professor of Operations Management and Brady Family Chair
Regents' Professor and Brady Family Chairholder
Phone
404.385.0104
Office
800 West Peachtree Street, N.W., Room 4426
Additional Research

Sustainable operations; closed-loop supply chains; supply chain management; Strategic Planning

IRI/Group and Role
Sustainable Systems > Staff
Manufacturing > Affiliated Faculty
Energy > Faculty Council
Energy > Research Community
University, College, and School/Department
Georgia Institute of Technology > Scheller College of Business
Research Areas
Sustainable Systems
  • Economics and Business of Sustainability
Energy
  • Sustainable Communities

Brigitte Stepanov

Brigitte Stepanov's profile picture
bstepanov@gatech.edu

Dr. Brigitte Stepanov is a war researcher and Assistant Professor of Francophone Studies. She is the founder and director of the Energy Today Lab, an interdisciplinary research hub that reflects creatively and analytically on the energy - broadly defined from labor to thermodynamics - of our contemporary world. Her research interests focus on 20th- and 21st-century French, North African, and Sub-Saharan African literary and visual culture. Trained as a scholar of French and Francophone Studies and as a mathematician, she holds degrees from Queen’s University at Kingston in Canada and a PhD from Brown University. At Brown, she was a Fellow at the Cogut Institute for the Humanities and awarded an Archambault Award for Teaching Excellence.

Before coming to Georgia Tech, she was an Andrew W. Mellon Postdoctoral Fellow with the Department of French and Arabic at Grinnell College, where she organized the Theories of Decolonization working group with the support of a grant from Grinnell’s Center for the Humanities. She has been a Silas Palmer Fellow at the Hoover Library and Archives at Stanford University, a Lecturer at the Université Lumière Lyon 2 in France, and a selected participant of the National Endowment for the Humanities seminar “The Search for Humanity after Atrocity.” Additionally, she has trained in conflict mediation, having most recently taken part in the Peacebuilding Institute hosted by the Center for Justice and Peacebuilding at EMU.

Her current book project, Cruelty, War, Fiction: Redefining the In-Human, explores excessive forms of violence in warfare and their representation in fiction and visual media from Algeria, Rwanda, and France. She argues that the concept of cruelty is fundamental to any discussion of political instability, war, and crimes against humanity. More broadly, this project examines the relationship between the evolution of warfare over the last eighty years and shifting conceptions of the human in the face of “universal” manifestations of violence. This work is closely tied to her second research project, which examines literary, artistic, and cultural responses to radioactive fallout and its ensuing ecological crisis following France’s nuclear arsenal testing in Algeria and the South Pacific. Dr. Stepanov’s scholarship has appeared in Contemporary French & Francophone Studies, The French Review, Voix plurielles, and in the volume Memory, Voice, and Identity: Muslim Women’s Writing from Across the Middle East (Routledge, 2021). Dr. Stepanov is also the translator of works by Peter Szendy and Laura Odello and has worked with the Derrida Seminar Translation Project.

Finally, she is a photographer, focusing on archiving memory and the geometry of ecological forms. Both facets of her work are preoccupied with minute documentation – be it to collect visual reminders of patches of lichen or the detailed brickwork of a monument. Among other venues, her work has been exhibited at the Houston Center for Photography, the Ukrainian Institute of Modern Art in Chicago, the Granoff Center for the Creative Arts and AS220 in Providence. Her recent exhibit, “Why I’ll Always Dream of Poland,” supported by a grant from the Program in Judaic Studies at Brown, features photographs she took while conducting research on Holocaust remembrance in Israel, Germany, France, Ukraine, Poland, Canada, and the US. Shedding light on public mourning and memorialization, the project also reflects on personal loss and family histories and attempts to bridge the gap between private experiences and public sites of inhuman violence.

Assistant Professor, School of Modern Languages
Director, Energy Today Lab
IRI/Group and Role
Sustainable Systems > Initiative Lead
Sustainable Systems
Energy > Faculty Council
Energy > Faculty Council
Energy > Research Community
University, College, and School/Department
Georgia Institute of Technology > Ivan Allen College of Liberal Arts > School of Modern Languages
Research Areas
Sustainable Systems
  • Global Sustainable Development
Energy
  • Sustainable Communities
  • Energy and National Security

Ilan Stern

Ilan Stern's profile picture
ilan.stern@gtri.gatech.edu
Research Scientist, Georgia Tech Research Institute
Phone
(404) 407-7205
Additional Research

Solar

IRI/Group and Role
Sustainable Systems > Emeritus Fellows
Energy > Faculty Council
Energy > Research Community
GTRI
Geogia Tech Research Institute
Research Areas
Sustainable Systems
  • Resource and Materials Use
Energy
  • Water, Wind, and Solar

Maryam Saeedifard

Maryam Saeedifard's profile picture
maryam@ece.gatech.edu

Maryam Saeedifard received the B.S. and M.S. degrees from Isfahan University of Technology, Isfahan, Iran, in 1998 and 2002, respectively, and the Ph.D. degree from the University of Toronto, Canada, in 2008, all in electrical engineering.

From 2007 to 2008, she was with ABB Corporate Research Center, Dattwil-Baden, Switzerland, working in the power electronic systems group. She joined Purdue University in January 2010, where she served as an assistant professor in the School of Electrical and Computer Engineering. Since January 2014, she has been on the ECE faculty at the Georgia Institute of Technology.

Her main research focus has been in the area of Power Electronics and Applications of Power Electronics in Power Systems and Transportation Systems. She has served on the technical program committees of the IEEE Power Electronics Society, IEEE Applied Power Electronics Conference and Exposition (APEC), and IEEE Industrial Electronics Conference (IECON). She is an editor for IEEE Trans. on Sustainable Energy, IEEE Trans. on Power Delivery, and IEEE Trans. on Power Electronics.

Professor, School of Electrical and Computer Engineering
Phone
(404) 894-4834
Office
VL E168
Additional Research

Electric Vehicles; Electrical Grid; Electronics

IRI/Group and Role
Energy > Faculty Council
Energy > Research Community
Energy
University, College, and School/Department
Georgia Institute of Technology > College of Engineering > School of Electrical and Computer Engineering
Research Areas
Energy
  • Energy Systems, Grid Resilience, and Cybersecurity
  • Electric Vehicles

Tarek Rakha

Tarek Rakha's profile picture
rakha@design.gatech.edu
Associate Professor, School of Architecture
Director, High Performance Building Lab
IRI/Group and Role
Energy > Faculty Council
Energy > Research Community
Energy
University, College, and School/Department
Georgia Institute of Technology > College of Design > School of Architecture
Research Areas
Energy
  • Built Environment
  • Sustainable Communities

Kate Pride Brown

Kate Pride Brown's profile picture
k.p.brown@gatech.edu

Kate Pride Brown is an environmental and political sociologist whose research focuses on a range of issues, including environmental activism in Russia and conservation policy in the United States. She received her doctorate from Vanderbilt University and completed a postdoctoral fellowship at the Vanderbilt Institute for Energy and Environment. Her book, Saving the Sacred Sea: The Power of Civil Society in an Age of Authoritarianism and Globalization (Oxford University Press, 2018), examines the conflict between local and transnational environmentalists, multinational corporations, and the Russian government over the future of Lake Baikal, the largest, deepest and oldest freshwater lake on Earth. While she continues to study environmental issues in Russia, especially around Lake Baikal, Dr. Brown has also published research on water and energy politics and policy in the United States. She is currently studying the "nuclear renaissance" in the southeastern United States. Among other honors, she has received a Fulbright Fellowship, a Critical Language Scholarship from the U.S. Department of State, and funding from the Horowitz Foundation for Social Policy and the National Council for Eurasian and East European Research. Her research has appeared in Communist and Post-Communist Studies, Energy Research and Social Science, Environmental Politics, Environmental Sociology, Ethnography, Memory Studies, Nature and Culture, Research in Political Sociology, Social Movement Studies, Sustainability: Science, Practice and Policy, Water Policy and WIREs Water.

Associate Professor, School of History and Sociology
Phone
(404) 894-0616
IRI/Group and Role
Sustainable Systems > Emeritus Fellows
Energy > Faculty Council
Energy > Research Community
University, College, and School/Department
Georgia Institute of Technology > Ivan Allen College of Liberal Arts
Research Areas
Sustainable Systems
  • Ecosystem and Environmental Health
Energy
  • Energy Economics, Policy, and Public Health
  • Sustainable Communities

Pamela Peralta-Yahya

Pamela Peralta-Yahya's profile picture
pperalta-yahya@chemistry.gatech.edu

Peralta-Yahya has been part of Georgia Tech since 2012. Her diverse research group composed of chemists, biologists, and chemical engineers works in the area of engineering biology, drawing from principles of biochemistry and engineering to build systems for chemical detection and production. Specifically, her group focuses on the development of G protein-coupled receptors for biotechnology and biomedical applications, and the engineering of biological systems for the production of fuels and functionalized plant natural products. Early on, her work was recognized with several awards including a DARPA Young Faculty Award, a DuPont Young Professor Award, a Kavli Fellowship by the US Academy of Science, and an NIH MIRA award. Her group’s key accomplishments are 1) the standardization of GPCR-based sensors in yeast to reduce the cost and accelerate the pace of drug discovery for these receptors, which are the target of over 30% of FDA approved drugs, and 2) the development of advanced biofuels, including pinene, which, when dimerized, has sufficient energy content to power rockets and missiles.  Today, her group is funded to work on these and other cutting edge areas – including how to power a rocket returning from Mars and how to make synthetic cells learn without evolution – by the National Institutes of Health, the National Science Foundation, the Department of Energy, and NASA.

Associate Professor, School of Chemistry and Biochemistry
Phone
404.894.4228
Office
MoSE 2100P
Additional Research

Bio-Inspired Materials; Biofuels; Cell biophysics; Cellular Materials; Biochemistry; Biomanufacturing; Energy; Biomaterials

IRI/Group and Role
Bioengineering and Bioscience > Faculty
Renewable Bioproducts > Affiliated Faculty
Energy > Faculty Council
Energy > Research Community
Bioengineering and Bioscience
Energy
University, College, and School/Department
Georgia Institute of Technology > College of Engineering > School of Chemical and Biomolecular Engineering
Research Areas
Energy
  • Fuels
Renewable Bioproducts
  • Bioindustrial Manufacturing and Biorefining
  • Circular Materials

Leigh McCook

Leigh McCook's profile picture
Leigh.McCook@gtri.gatech.edu

Leigh McCook, principal research associate at Georgia Tech, also serves as deputy director for IPaT, director of STEM programs for the Georgia Tech Research Institute (GTRI), and previously served as division chief for fifteen years in GTRI’s socio-technical systems division in the Information and Communications Lab. She has been with Georgia Tech for more than 30 years.

As deputy director in IPaT, McCook works to build new research partnerships across campus as well as develop government, industry, and international programs. While she continues to conduct research, McCook's focus has centered on growing IPaT’s research portfolio of state government and industry projects, particularly in education, humanitarian systems, health and smart cities.

McCook’s GTRI activities include directing research and outreach programs for regional and national centers and managing a variety of research and STEM programs funded by federal, state, and local agencies.

Her career expertise includes technology transfer, research translation, outreach, planning, and program management, specifically in areas related to emergency preparedness and response, homeland security, community resiliency, and education. She has managed researchers working a variety of programs in health, learning technology, planning, technology assessment, and integration, policy analysis and research, technology transfer, education, training, public safety, humanitarian, and emergency response.

McCook served as program manager for the Georgia Emergency Management Agency (GEMA) Homeland Security/Emergency Response programs at the Georgia Tech Research Institute since 2000. Twenty years of program support to GEMA has resulted in over $53M work of funded project work at GTRI.

McCook’s experience also includes having served as associate director for technology transfer and outreach for EPA’s Hazardous Substance Research Centers (South & Southwest). In this capacity she led technology transfer, research translation, and outreach activities for the five-university consortium.

McCook has served as principal investigator (PI) or co-PI on projects for the Centers for Disease Control and Prevention, the Georgia Department and Family and Child Services, the Governor’s Office of Student Achievement, the Atlanta Urban Area Security Initiative, and the Department of Homeland Security (DHS) Southeast Regional Research Initiative.

Division Chief, Information and Communications Laboratory, GTRI
Deputy Director, Institute for People and Technology (IPaT)
Phone
404-407-7898
Additional Research

Education; Humanitarian Systems

IRI/Group and Role
People and Technology > Affiliated Faculty
People and Technology > Leadership
Energy > Faculty Council
Energy > Research Community
People and Technology
Energy
GTRI
Geogia Tech Research Institute
Research Areas
Artificial Intelligence
Energy
  • Energy Economics, Policy, and Public Health
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