About Us

The overarching goals of Julio D’Arcy’s laboratory are to discover and apply novel functional nanostructured organic and inorganic materials utilizing universal synthetic chemistry protocols that control chemical structure, nanoscale morphology as well as intrinsic chemical and physical properties.

We study capacitive, pseudocapacitive and semiconducting nanostructured materials and develop synthetic strategies that enhance charge carrier transport, ion transport, surface area, thermal and mechanical stability. Our laboratory produces organic and inorganic materials as well as composites thereof via a multi-pronged interdisciplinary approach using solution, electrochemical and vapor phase processing.

Research in the D’Arcy lab probes interfacial self-assembly techniques that control chemistry at the liquid/liquid, liquid/vapor and liquid/solid interface affording a versatile approach for assembling polymeric nanostructures into thin films of functional nanostructured materials. Coatings serve as active layers in electrodes for engineering state-of-the-art energy storage devices such as supercapacitors and pseudocapacitors.

Recent News

September 29, 2020 (Links to an external site)

September 29, 2020
Low-cost poly (3,4 ethylenedioxythiophene) (PEDOT) films with a high electronic conductivity of 1021 S/cm were successfully deposited via iron oxide-based vapor-phase polymerization and used as a counter electrode (CE) in dye-sensitized solar cells for the first time. Reaching a high efficiency of 8.4%, the CE showed outstanding catalytic activity in iodine/triiodide (I–/I3–) reduction, with a […]

August 11, 2020 (Links to an external site)

August 11, 2020
D’Arcy and colleagues, including Washington University graduate student Hongmin Wang, first author of the new study, showed how to convert red bricks into a type of energy storage device called a supercapacitor. The red pigment in bricks — iron oxide, or rust — is essential for triggering the polymerisation reaction. The authors’ calculations suggest that […]

August 9, 2020 (Links to an external site)

August 9, 2020
New methods for engineering microsupercapacitors developed by Julio M. D’Arcy, assistant professor in the Department of Chemistry, and collaborators at Washington University’s Institute of Materials Science & Engineering combine conventional microfabrication techniques with cutting-edge polymerization. The team’s microsupercapacitors show exceptional electrical conductivity and energy density, producing the highest such values of any conducting polymer-based microsupercapacitors. The results are published […]

January 9, 2020 (Links to an external site)

January 9, 2020
A drugstore solution for synthesizing stable semiconducting polymers D’Arcy Lab develops an elegant, inexpensive approach that uses aerosolized water vapor as a template for creating uniform plastic nanoparticles. Current methods for producing conducting plastics typically deposit the material onto a flat surface, resulting in differences in shape between the top and bottom of the particles. […]

December 5, 2019 (Links to an external site)

December 5, 2019
Fall 2019 LEAP Cycle Winners Announced D’Arcy Lab wins 2019 Leap Funding On December 5, 2019, for the first time the Skandalaris Center’s Leadership and Entrepreneurial Acceleration Program, better known as LEAP, announced the funded teams the day of cycle finals.  Twenty-five teams from a variety of backgrounds presented their projects and were judged on […]