Research Staff
Our silicon group members have backgrounds in physics, chemistry, mathematics, materials science, and electrical engineering.
- William Nemeth
- Matt Page
- Lorenzo Roybal
- Pauls Stradins, (Group Manager)
Pauls Stradins
Senior Scientist II
Group Manager
Primary Research Interests
- Film silicon photovoltaics: Epitaxial growth and defect formation mechanisms, device physics, light trapping
- Nanostructured semiconductor materials for photovoltaics: Quantum dots (Si and PbS), nanowires, "black" silicon, advanced light-trapping structures
- Thin-film silicon photovoltaics and physics of disordered silicon: Light-induced structural changes, defects, hydrogen, electronic transport
Read a short profile or view the NREL Publications of Pauls Stradins.
Russell Bauer
Master Research Technician
Primary Research Interests
- Silicon wafer processing
- Database development for scientific applications
- Lab equipment automation
Read a short profile or view the NREL Publications of Russell Bauer.
Howard Branz
Principal Scientist
Primary Research Interests
- Film crystal silicon photovoltaics
- Defects, metastability, and diffusion in semiconductors
- Amorphous semiconductors
- Solar hydrogen production
- Nanostructured black silicon antireflection
Read a short profile or view the NREL Publications of Howard Branz.
Sachit Grover
Postdoctoral Researcher
Primary Research Interests
- Film-silicon solar cells
- Physics, fabrication, and characterization of novel electronic devices
- Nanoscale electronics and plasmonics
Read a short profile of Sachit Grover.
Vincenzo LaSalvia
Research Technician II
Primary Research Interests
- Microfabrication techniques
- Silicon epitaxy
- Photovoltaic characterization
- Semiconductor physics
Read a short profile of Vincenzo LaSalvia.
Benjamin Lee
Postdoctoral Researcher
Primary Research Interests
- Light trapping in thin silicon solar cells
- Optical and electronic properties of silicon quantum dots
- Epitaxial-film silicon solar cell design, fabrication, and characterization
Read a short profile or view the NREL Publications of Benjamin Lee.
William Nemeth
Research Engineer
Primary Research Interests
- Silicon solar cell fabrication and testing
- Thin-film deposition
- Bulk crystal growth
- Research equipment
Read a short profile or view the NREL Publications of William Nemeth.
Matt Page
Research Scientist II
Primary Research Interests
- Silicon solar cell fabrication and design
- Silicon feedstock
- Research equipment
Read a short profile or view the NREL Publications of Matt Page.
Lorenzo Roybal
Master Research Technician
Primary Research Interests
- Photolithography process and design
- Solar cell fabrication
- Solar hybrid system design and application
Read a short profile or view the NREL Publications of Lorenzo Roybal.
Charles (C.W.) Teplin
Senior Scientist
Primary Research Interests
- Low-temperature silicon epitaxy and heteroepitaxy
- Nonlinear optical characterization of semiconductor interfaces and charge transport
- Texture formation in film crystal growth
Read a short profile or view the NREL Publications of Charles Teplin.
Qi Wang
Primary Research Interests
- High-efficiency c-Si heterojunction solar cells
- Thin-film Si solar cells, diodes, and TFTs
- High-throughput thin-film deposition cluster tools
Read a short profile or view the NREL Publications of Qi Wang.
David Young
Senior Scientist
Primary Research Interests
- Electronic defect characterization
- Solar cell device physics and characterization
- Film silicon and III-V solar cell design
Read a short profile or view the NREL Publications of David Young.
Hao-Chih Yuan
Research Scientist
Primary Research Interests
- Silicon solar cell design, fabrication, and characterization
- Interdigitated back contact cell structure
- Silicon heterojunction solar cells
- Single crystal silicon growth
Read a short profile or view the NREL Publications of Hao-Chih Yuan.
