An Innovator at the Intersection of the Sciences

Rebekah Feist

R&D Manager, Formulation Science
Core R&D
To be a successful engineer, you need to be intuitive, curious, tenacious and almost dogged as you search for solutions.

Driven By Powerful Curiosity

Rebekah Feist can’t remember an exact moment that led her to a career in science, but she’s always been inquisitive by nature. She credits her family for supporting her curiosity in a positive way.

“Trips to the Science Museum of Minnesota were also a regular occurrence for our family. In school, I always enjoyed math and science classes and I would even find myself reading ahead, looking for more.”

Rebekah’s strong desire to learn has served her well, even if it has taken her down a path less traveled.

“After high school, I went to the University of Minnesota to pursue a degree in biochemistry and shortly thereafter I transferred into chemical engineering,” Rebekah said. “During an internship at Sandia National Labs, my mentor at that time gave me a great opportunity to work in a clean room studying different polymers and small molecules as detectors. I was really fortunate to have this experience at Sandia as it solidified my desire to go on to grad school and to focus my studies on semiconductor materials and thin film device fabrication.

“Upon returning to the University of Minnesota, I met Professor Steve Campbell, who gave me a job studying Permalloy Transformers in the then named Micro Fabrication Center. When it was time to apply for graduate school later that year, Steve was a huge supporter of mine and he helped me secure a NSF NanoIGERT Fellowship that enabled my pursuit of a Ph.D. in electrical engineering, and thereafter ultimately my career at Dow.

“I’m indebted to my family, teachers, and many mentors and the support they have given me throughout my life. I would not be where I am today without them.”

Since joining Dow in 2007, Rebekah’s interdisciplinary background and interests have provided her the opportunity to develop energy solutions.

“When I joined Dow, the company had just started a photovoltaics program to develop the DowTM POWERHOUSE™ Solar Shingle System. I remember when I first saw the shingle concept as a drawing on a piece of paper. And then a few years later, in 2011, after countless experiments were conducted and risks were retired, our team successfully commercialized it. Deployment of renewable energy sources for our world is vital,” she said.

“Our solar shingle system has given the world a new renewable energy option that can make a real difference. I’m proud of the Dow team that developed and commercialized this technology.”

Looking Ahead, Encouraging Others

Within her work at Dow, Rebekah encourages others to embrace challenge and risk.

“A huge part of what we do at Dow involves innovating at the intersections of different sciences, which means we work in interdisciplinary and cross-functional teams to solve relevant technical challenges. I encourage young scientists to follow their interests and to seek out great people to work with, people you can learn from and that want to help you learn, wherever they reside.”

In addition to developing new energy solutions, Rebekah truly enjoys mentoring young scientists.

“Helping others is one of the favorite parts of my job at Dow,” Rebekah said. “I work with amazing, talented people, and it is truly rewarding to see them be excited about their work and dominating it. When we are doing that, and we are aligned, I know we can solve any challenge.”

Awards

NSF NanoIGERT Graduate Fellow, 2002-2004

Minnesota American Council of Engineering Companies Scholarship, 2001

University of Minnesota Junior Chemical Engineering Student Scholarship, 2001

University of Minnesota Iron Range Scholarship, 1997-1999

Associations:

Member of Institute of Electrical and Electronics Engineers (IEEE)

Member of Society of Women Engineers (SWE)

Associate Editor of the Journal of Photovoltaics, 2013-present

Coach to Midland High School FIRST Robotics Team, 2010

Member HKN Honor Society

Member TBP Engineering Honor Society

US8604336B2: Photovoltaic device with transparent, conductive barrier layer

US8603581B2: Manufacture of n-type chalcogenide compositions and their uses in photovoltaic devices

WO2014058788A1: Photovoltaic devices incorporating thin chalcogenide film electrically interposed between pnictide-containing absorber layer and emitter layer

WO2014051889A1: Photo-voltaic device having improved shading degradation resistance

WO2014036422A1: Spectral light splitting module and photovoltaic system including concentrator optics

WO2014028312A1: Bi-component electrical connector

WO2014025826A2: High reliability photovoltaic device

WO2014006630A1: Flexible building integrated PV device

WO2013181248A2: High utilization photo-voltaic device

WO2013181244A2: High utilization photo-voltaic device

WO2013116323A2: Method of making photovoltaic devices incorporating improved pnictide semiconductor films

WO2013116320A2: Method of making photovoltaic devices with reduced conduction band offset between pnictide absorber films and emitter films

WO2013116315A1: Method of making photovoltaic devices incorporating improved pnictide semiconductor films using metallization/annealing/removal techniques

WO2013103479A1: Improved method of producing two or more thin-film based interconnected photovoltaic cells

WO2013095984A1: Improved method of producing two or more thin-film based interconnected photovoltaic cells

WO2013048758A2: Photovoltaic Cell Interconnect

WO2013048759A2: Photovoltaic Cell Interconnect

WO2013019608A1: Optoelectronic devices with thin barrier films with crystalline characteristics that are conformally coated onto complex surfaces to provide protection against moisture

WO2012134992A2: Light transmitting thermoplastic resins comprising down conversion material and their use in photovoltaic modules

US20110259416: Environmental barrier protection for devices

S. Athreya, et al, Proc. of the IEEE 39th PVSC (2013).

R. Feist, et al, “A Study of Thermal, Voltage, and Photoinduced Effects on the External Quantum Efficiency of CuInGaSe2 (CIGS) Photovoltaic Devices.” Proc. of the IEEE 38th PVSC (2012).

M. Mushrush, et al, “Development of a High-Pressure CdS Sputtering Process for Improved Efficiency in CIGS-Based Photovoltaic Devices.” Proc. of the IEEE 38th PVSC (2012).

B. Tosun, et al, “Tin dioxide as an alternative window layer for improving the Damp-Heat Stability of Copper Indium Gallium Diselenide Solar Cells.” Journal of Vacuum Science and Technology A, 30:4 (2012).

R. Feist, et al, “Methodology for Delivering Reliable CIGS based Building Integrated Photovoltaic (BIPV) Products.” Proc. of the IEEE IRPS (2012).

B. Tosun, et al, “Improving the Damp-Heat Stability of Copper Indium Gallium Diselenide Solar Cells with a Semicrystalline Tin Dioxide Overlayer.” Solar Energy Materials and Solar Cells, 101, pg 270-276 (2012).

B. Tosun, et al, “Sputter Deposition of Semicrystalline Tin Dioxide Films.” Thin Solid Films, 520:7, pg 2554-2561 (2012).

B. Tosun, et al, “Sputter Deposition of Amorphous and Nanocrystalline Tin Dioxide Films.” AIChE Conference Proc. (2011).

B. Tosun, et al, “Improving the Damp-Heat Stability of Copper Indium Gallium Diselenide Solar Cells.” AVS Conference Proc. (2011).

R. Feist, et al, “Comparison of solar cell device thermal degradation and low-irradiance performance.” Proc. of the IEEE 37th PVSC (2011).

S. Song, et al, “Simultaneous interface and bulk trap characterization in CIGS solar cells.” Proc. of the IEEE 37th PVSC (2011).

R. Feist, et al, “Thermal degradation and light capture performance of CIGS and c-Si devices.” Proc. of the IEEE 36th PVSC (2010).

S. Song, et al, “Structure optimization for a high efficiency CIGS solar cell.” Proc. of the IEEE 36th PVSC (2010).

R. Gaston, et al, “Product reliability and thin-film photovoltaics.” Proceedings of SPIE Photovoltaics (2009).

R. Feist, et al, “Further examination of the lifetime-limiting failure mechanisms in CIGSS-based PV devices under environmental stress.” Proc. of the IEEE 35th PVSC (2009).

M. DeGroot, et al, “High throughput methodology for evaluation of the moisture barrier performance of thin-films for PV applications.” Proc. of the IEEE 35th PVSC (2009).

U. Kortshagen, R. Ligman, et al, “Plasma synthesis of group IV quantum dots for luminescence and PV applications.” Pure and Applied Chemistry 80: 1901-1908 (2008).

R. Feist, et al, “Examination of lifetime-limiting failure mechanisms in CIGSS-based PV cells under environmental stress for preferred packaging design.” Proc. of the IEEE 34th PVSC (2008).

B. Nichols, et al, “Exploration of binary & ternary photosensitive thin film sliver selenides: prediction, preparation, and characterization.” Proc. of the IEEE 34th PVSC (2008).

X. Pi, et al, “Full Spectrum Emission and Hybrid OLEDs from Silicon Nanoparticles.” Proc. of the 4th International Conference on Group IV Photonics Workshop, IEEE/LEOS (2007).

R. Ligman, et al, “Characterization of energy transfer processes occurring between pi-conjugated polymers and surface oxidized silicon nanoparticles.” Proc. of NSTI (2007).

R. Ligman, et al, “Electroluminescence from Surface Oxidized Silicon Nanoparticles Dispersed Within a Polymer Matrix.” Applied Physics Letters 90: 061116 (2007).

R. Ligman, et al “Characterization of electrostatically chucked EUVL mask blanks.” Proc. of SPIE Microlithography, 5751 (2005).

H. Fissan, et al, “Developments towards parallel productions of nanostructured gas sensors.” Advanced European Studies Workshop (2004).

H. Fissan, et al, “Development of nanostructured multi-gas sensors for fire detection.” 13th International Conference on Automatic Fire Detection (2004).

H. Fissan, et al, “Nanoparticles as building blocks for sensing layers.” Book of Abstracts, Chemical Nanotechnology Talks IV, S. 15 (2003).