Alex Welch

Graduate Student

626-395-2821



Alex is a graduate student in Material Science and joined the Atwater group in September 2016.  She graduated from Stanford University in 2016with a BS in Engineering Physics.  Her previous research focused on using plasmonic hot carriers to create a photon upconverter.  In the Atwater group she will be a part of JCAP (Joint Center for Artificial Photosynthesis), and she is supported by the NSF Graduate Research fellowship.  When she is not doing science, Alex is likely to be running or hanging out with friends.

Available Publications


Bicarbonate or Carbonate Processes for Coupling Carbon Dioxide Capture and Electrochemical Conversion

Alex J. Welch, Emily Dunn, Joseph S. DuChene, and Harry A. Atwater
ACS Energy Lett. 2020, 5, 940−945 (2020)

Optical Excitation of a Nanoparticle Cu/p-NiO Photocathode Improves Reaction Selectivity for CO2 Reduction in Aqueous Electrolytes

Joseph S. DuChene, Giulia Tagliabue, Alex J. Welch, Xueqian Li, Wen-Hui Cheng, and Harry A. Atwater
Nano Letters (2020)

Radiation Tolerant Nanowire Array Solar Cells

Pilar Espinet-Gonzalez, Enrique Barrigón, Gaute Otnes, Giuliano Vescovi, Colin Mann, Ryan M. France, Alex J. Welch, Matthew S. Hunt, Don Walker, Michael D. Kelzenberg, Ingvar Åberg, Magnus T. Borgström, Lars Samuelson, and Harry A. Atwater
ACS Nano (2019)

Nanoporous Gold as a Highly Selective and Active Carbon Dioxide Reduction Catalyst

Alex J. Welch, Joseph S. DuChene, Giulia Tagliabue, Artur Davoyan, Wen-Hui Cheng and Harry A. Atwater
ACS Applied Energy Materials (2018) - Photocatalysis

Quantifying the role of surface plasmon excitation and hot carrier transport in plasmonic devices

Giulia Tagliabue, Adam S. Jermyn, Ravishankar Sundararaman, Alex J. Welch, Joseph S. DuChene, Ragip Pala, Artur R. Davoyan, Prineha Narang and Harry A. Atwater
Nature Communications (2018) - Plasmonics