Lab Members

PhD Graduate Student, Chemistry and Biochemistry (UArizona)

PhD Candidate, Materials Science and Engineering

Bachelor’s of Science in Materials Engineering (2024) California Polytechnic University, San Luis Obispo.

I am studying the charge and mass transport properties of pi-conjugated polymers for use in optoelectronic devices and energy storage applications.

Contact: mhawley7@gatech.edu

Postdoctoral Fellow, GATech affiliate

Zhiting Chen received her Ph.D. in Materials Science and Engineering from the University of Arizona, where she worked with Prof. Erin Ratcliff on the spectroelectrochemical properties of soft semiconductors, specifically conjugated polymers. She is passionate about understanding complex electrode/electrolyte interfaces and aims to bridge fundamental electrochemistry with applied engineering principles. Her research focuses on developing in situ and operando characterizations to quantify and control electrochemical environments for clean fuel technologies.

Postdoctoral Fellow

Ph.D. in Materials Engineering (2019) Universidad de Antioquia, Colombia

Bachelor’s in Chemical Engineering (2014) Universidad de Antioquia, Colombia. 

Research Areas:

• studying charge-transport materials in perovskite solar cells, with a focus on stability;
• charge transfer works at interfaces in nanostructured optoelectronic devices; and
• scalable fabrication methods, like solution-based and high vacuum deposition, to boost perovskite solar cell efficiency and durability

Contact Juan: jjaramillo32@gatech.edu

Postdoctoral Fellow

Ph.D. in Energy Engineering, Hanyang University, Republic of Korea

Research Areas:

• Charge transfer in ground and excited states of conjugated polymers and organic molecules-
• Electronic and energy harvesting devices
• Solution processes for scalable and large-area film deposition

Postdoctoral Fellow

Ph.D. in Chemical Engineering, BITS-Pilani K K Birla Goa campus

Research Areas:

• Studying charge transfer dynamics in n-type semiconductor polymers for redox reactions and energy storage applications.
• Investigating photocatalytic materials for enhanced solar-driven H₂ production and pollutant degradation.
• Exploring structure-activity relationships in electrocatalysts for HER and OER, focusing on trimetallic and single-atom catalysts to enhance efficiency and selectivity.

Research Scientist

Prior Experience:

• Research Scientist IV (2022-2024) University of Arizona, USA.
• Postdoctoral Researcher (2020-2022) University of Arizona, USA.
• Postdoctoral Researcher (2016-2020) Georgia Institute of Technology, USA.
• Ph.D. in Analytical Chemistry (2015) Ghent University, Belgium.
• Master’s in Chemistry (2009) Ghent University, Belgium.

Research Areas:

• Development of in-line defect quantification method in semiconductor films;
• Study ion and charge carrier transport phenomena through advanced operando methodologies in semiconductor materials;
• Define the importance of interfacial processes within optoelectronic devices using (spectro)electrochemistry and;
• Examine active corrosion mechanisms in lead halide perovskites through
  near-ambient pressure X-ray photoelectron spectroscopy