Publications by Hannah Elizabeth Johnson

Transparent Porous Conductive Substrates for Gas-Phase Photoelectrochemical Hydrogen Production

Kevin Sivula, Jun Ho Yum, Marina Caroline Michèle Caretti, Benjamin Goldman, Rebekah Anne Wells, Simon Nussbaum, Emeline Cécile Rideau, Loï Charles Carbone, Elizaveta Potapova Mensi, Linda Lazouni

Gas diffusion electrodes are essential components of common fuel and electrolysis cells but are typically made from graphitic carbon or metallic materials, which do not allow light transmittance and thus limit the development of gas-phase based photoelectr ...

Wiley-V C H Verlag Gmbh2023

Precious metal-free (photo)electrochemistry for green hydrogen production

Hannah Elizabeth Johnson

Climate change caused by anthropogenic greenhouse gas emissions necessitates a transition from fossil resources to greener fuels and chemicals. Hydrogen is a promising green energy vector due to its high gravimetric energy density, its potential use in fue ...

EPFL2023

Rational Design of Photoelectrodes for the Fully Integrated Polymer Electrode Membrane-Photoelectrochemical Water-Splitting System: A Case Study of Bismuth Vanadate

Hannah Elizabeth Johnson

Photoelectrochemical (PEC) reactors based on polymer electrolyte membrane (PEM) electrolyzers are an attractive alternative to improve scalability compared to conventional monolithic devices. To introduce narrow band gap photoabsorbers such as BiVO4 in PEM ...

2021

Roll-to-Roll Deposition of Semiconducting 2D Nanoflake Films of Transition Metal Dichalcogenides for Optoelectronic Applications

Kevin Sivula, Rebekah Anne Wells, Charles Roger Jean Lhermitte, Hannah Elizabeth Johnson

Exfoliated transition metal dichalcogenide (TMD) nanomaterials possess remarkable and tunable semiconducting properties which make them competitive for use in ultrathin, flexible devices such as photodetectors, sensors, and photoelectrodes for solar energy ...

2019