Research Output per Year
Research Output per Year
Overview
Personal Profile
Aaron Ptak joined NREL in 2001 and has since worked on the growth and characterization of various materials and devices, including dilute nitrides and dilute bismides, coincident-site lattice matched alloys, and other novel materials for photovoltaic applications. He currently leads an effort to drastically reduce the cost of high-efficiency III-V solar cells, focused on the use of hydride vapor phase epitaxy to enable the use of highly efficient III-V materials in one-sun and low-concentration applications. Ptak has authored or co-authored more than 125 papers and 2 book chapters, given more than 100 invited and contributed presentations, and been awarded 6 patents.
Research Interests
Growth kinetics
New materials
Low-cost III-V deposition techniques
Photovoltaic materials and devices.
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Collaborations and Top Research Areas From the Past 5 Years
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24% Single-Junction GaAs Solar Cell Grown Directly on Growth-Planarized Facets Using Hydride Vapor Phase Epitaxy: Article No. 2302035
Braun, A., Boyer, J., Schulte, K., McMahon, W., Simon, J., Perna, A., Packard, C. & Ptak, A., 2024, In: Advanced Energy Materials. 14, 3, 9 p.Research output: Contribution to journal › Article › peer-review
5 Scopus Citations -
In Situ Smoothing of Facets on Spalled GaAs(100) Substrates during OMVPE Growth of III-V Epilayers, Solar Cells, and Other Devices: The Impact of Surface Impurities/Dopants
McMahon, W., Braun, A., Perna, A., Coll, P., Schulte, K., Boyer, J., Neumann, A., Geisz, J., Warren, E., Ptak, A., Merkle, A., Bertoni, M., Packard, C. & Steiner, M., 2024, In: Crystal Growth and Design. 24, 8, p. 3218-3227 10 p.Research output: Contribution to journal › Article › peer-review
2 Scopus Citations -
Toward High-Throughput Deposition of III-V Materials and Devices Using Halide Vapor Phase Epitaxy: Paper No. 1288102
Ptak, A. J., Hassanaly, M., Udwary, K., Leach, J. H., Dodson, G., Splawn, H., Schulte, K. L. & Simon, J., 2024. 5 p.Research output: Contribution to conference › Paper
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Toward High-Throughput Deposition of III-V Materials and Devices Using Halide Vapor Phase Epitaxy: Preprint
Ptak, A., Hassanaly, M., Udwary, K., Leach, J., Dodson, G., Splawn, H., Schulte, K. & Simon, J., 2024. 8 p.Research output: Contribution to conference › Paper
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AlInP-Passivated III-V Solar Cells Grown by Dynamic Hydride Vapor-Phase Epitaxy
Boyer, J., Schulte, K., Young, M., Ptak, A. & Simon, J., 2023, In: Progress in Photovoltaics: Research and Applications. 31, 3, p. 230-236 7 p.Research output: Contribution to journal › Article › peer-review
Open Access5 Scopus Citations