Daniel L. Lepkowski
Engineering · The Ohio State University
Publications
34
Citations
479
Est. group size
—
Recurring co-author estimate
Active years
11
Publishing since 2014
This researcher works on high-efficiency solar cells that combine silicon with III-V semiconductor materials (compounds like gallium arsenide phosphide and gallium phosphide) to capture more sunlight than silicon alone. Much of the work focuses on growing these layered ('epitaxial') materials with fewer crystal defects, since defects reduce solar cell performance, using techniques such as metal-organic chemical vapor deposition (MOCVD) and molecular beam epitaxy. The research aims to improve tandem solar cell designs for applications including terrestrial power generation and space photovoltaics.
Publication output rose from 2017 through a peak in 2020, then declined sharply with no publications in 2022, 2023, or 2025 and only one in 2024, indicating a marked slowdown in recent years.
Generated by claude-sonnet-5 from public bibliographic data · Jul 20, 2026
- Design for Increased Defect Tolerance in Metamorphic GaAsP-on-Si Top Cells
IEEE Journal of Photovoltaics · 2024
- 23.4% monolithic epitaxial GaAsP/Si tandem solar cells and quantification of losses from threading dislocations
Solar Energy Materials and Solar Cells · 2021
- Correlation of early-stage growth process conditions with dislocation evolution in MOCVD-based GaP/Si heteroepitaxy
Journal of Crystal Growth · 2021
- Metamorphic Tunnel Junctions Grown Via MOCVD Designed for GaAs<sub>0.75</sub>P<sub>0.25</sub>/Si Tandem Solar Cells
IEEE Journal of Photovoltaics · 2021
- Recent Advances in GaAsP/Si Top Cell Enabling 27% Tandem Efficiency
2021
- Exploring Multiple Pathways to Low TDD GaP/Si for III-V/Si Photovoltaics
2021
- Reduced Dislocation Introduction in III–V/Si Heterostructures with Glide-Enhancing Compressively Strained Superlattices
Crystal Growth & Design · 2020
- The Critical Role of AlInP Window Design in III–V Rear-Emitter Solar Cells
IEEE Journal of Photovoltaics · 2020
- Designing an Epitaxially-Integrated DBR for Dislocation Mitigation in Monolithic GaAsP/Si Tandem Solar Cells
IEEE Journal of Photovoltaics · 2020
- Loss Analysis and Design Strategies Enabling >23% GaAsP/Si Tandem Solar Cells
2020
- Development of Low-TDD GaAsyP<sub>1-y</sub>/GaP/Si Metamorphic Materials for High-Efficiency III-V/Si Photovoltaics
2020
- Si-matched B<i>x</i>Ga1−<i>x</i>P grown via hybrid solid- and gas-source molecular beam epitaxy
Applied Physics Letters · 2020
- Improving GaAsP/Si Tandem Solar Cells Using Silicon Passivated Contacts
2020
- Investigation of Rear-Emitter GaAs<sub>0.75</sub>P<sub>0.25</sub> Top Cells for Application to III–V/Si Tandem Photovoltaics
IEEE Journal of Photovoltaics · 2019
- Modeling and experimental demonstration of short-wavelength carrier collection enhancement in Ga0.51In0.49P solar cells using graded (AlzGa1-z)xIn1-xP window-emitter structures
Solar Energy Materials and Solar Cells · 2019
- IEEE Journal of Photovoltaics×6
- 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC)×3
- Applied Physics Letters×2
- Solar Energy Materials and Solar Cells×2
- Crystal Growth & Design×1
- Jacob T. Boyer
Engineering · The Ohio State University
- Tyler J. Grassman
Physics and Astronomy · The Ohio State University
- M. Ryyan Khan
Engineering · Purdue University West Lafayette
- M. Tahir Patel
Engineering · Purdue University West Lafayette
- Steven A. Ringel
Physics and Astronomy · The Ohio State University
This profile was generated automatically from public scholarly data (OpenAlex). Group size and activity levels are estimates derived from co-authorship patterns.
Last updated Jul 19, 2026.
Claim or correct this profile