Session 2.3.2

Direct solar energy conversion photoelectrochemical cells

Keywords

Photoelectrochemistry, photocatalysis, solar thermochemistry, semiconductor-liquid junctions, electrocatalysts, operando characterization, membrane separators, transport processes, device-physics modeling, numerical simulations, nanoparticles, nanowires, nanocrystals, photonics, artificial leaf, bionic leaf.

 

Speakers 

  • KN: Peidong YANG (UCAL Berkeley, USA)

  • IL1: Sophia HAUSSENER (EPFL, Lausanne, CH)

  • IL2: Lilac AMIRAV (Technion, Haifa, IL)

Abstract

State-of-the-art solar fuels constructs absorb sunlight, separate electronic mobile charge carriers, and use them to directly drive fuel-forming redox reactions at semiconductor–liquid junctions. These integrated assemblies require exquisite control over various aspects of lightdriven redox chemistry, including photon management, selective contacts for electronic charge separation, charge accumulation at redox-active electrocatalytic sites, multipleelectron/proton-coupled reactions, chemical species transport, ionic conduction, thermal effects, and mitigation of chemical crossover. This session will highlight the latest advances in understanding and controlling these complex coupled phenomena.