THRUST 3: Materials Integration and Components
development and understanding of integrated catalyst/light absorber assemblies
Researchers in Thrust 3 are synthesizing and characterizing photocatalytic assemblies to elucidate factors governing efficiency, selectivity, and stability, with the aim of providing high performance interfaces for photocatalytic CO2 reduction reaction. They are establishing a pipeline from new materials discovery to integrated (photo) electrochemical assemblies.
The approach involves the following themes:
- Understanding of materials interactions and processing sensitivities on performance.
- Study of the fundamental physics of charge transport from semiconductors to catalysts in semiconductor/catalyst/electrolyte assemblies.
- Establishing approaches for interface engineering that enable desired photovoltages, high charge extraction efficiencies, and durability under operational conditions.
- Elucidating the role of spatially inhomogeneous and temporally varying potentials on photocatalytic activity, selectivity, and stability.
- Integration of electrocatalysts into non-planar 3-D morphologies, allowing the interplay between optical absorption, photonic and plasmonic effects.
- Integration of new materials into functional photoelectrodes with high reproducibility at scales that reduce edge effects and enable failure mechanisms to be captured by experiment.
Thrust 3 Coordinator is Dr. Ian Sharp.
Loiudice, A. et al. Assembly and Photocarrier Dynamics of Heterostructured Nanocomposite Photoanodes from Multicomponent Colloidal Nanocrystals. Nano Letters (2015), DOI: 10.1021/acs.nanolett.5b03871 (2015).
Finely-tailored complex materials were studied to demonstrate their functionality as promising light absorbers.