Publication
Theoretical maximum photogeneration efficiency and performance characterization of InxGa1-xN/Si tandem water-splitting photoelectrodes
Related publications (35)
Interface connection of functionalized carbon nanotubes for efficient and stable perovskite solar cells
Mohammad Khaja Nazeeruddin, Jianxing Xia, Ruiyuan Hu
The ionic defects of hetero-junction interfaces always attract and trap carriers via surface electrostatic forces, which are crucial for the efficiency and intrinsic stability of perovskite solar cells (PSCs). Herein, functionalized carbon nanotubes (CNTs) ...
ROYAL SOC CHEMISTRY2023Multiple Effects Induced by Mo6+ Doping in BiVO4 Photoanodes
Kevin Sivula, Charles Roger Jean Lhermitte, Nukorn Plainpan, Annalisa Polo, Ivan Grigioni
Mo6+ doping increases the photoelectrochemical performance of BiVO4 photoanodes in water oxidation. Herein, the underlying mechanisms is elucidated through a systematic structural, morphological, and photoelectrochemical investigation on photoelectrodes of ...
WILEY-V C H VERLAG GMBH2022Novel Interfacial Characterization and Surface Engineering in Semiconductor Electrodes for Optimized Solar Fuel Production
Harvesting sunlight, the ultimate renewable power source, in a cost-effective way has been long recognized as a necessary route to meet the global energy challenges. Solar energy can be transformed into electricity by means of photovoltaic devices to suppl ...
EPFL2021Rapid Performance Optimization Method for Photoelectrodes
Sophia Haussener, Yannick Kenneth Gaudy
We report the development of a rapid method for the performance optimization of photoelectrodes. The method requires as an input incident photon-to-current efficiency (IPCE) measurements of a material at two or more wavelengths, an estimation of the comple ...
2019A multi-technique approach to study the microstructural properties of tin-based transparent conductive oxides
Transparent conductive oxides (TCOs) are semiconductor-like materials that exhibit high electrical conductivity and high optical transparency combined. They are adopted in various applications ranging from gas sensors, to electrochromic windows, to photovo ...
EPFL2019Defect passivation in zinc tin oxide: improving the transparency-conductivity trade-off and comparing with indium-based materials
Oscar Esteban Rucavado Leandro
Transparent conductive oxides (TCOs) are essential in technologies coupling light and electricity. Due to their good optoelectronic properties and the production scalability, Sn-doped indium oxide (In2O3:Sn) is the preferred TCO in industrial applications. ...
EPFL2019Alignment of energy levels in amorphous oxides and at semiconductor-water interfaces
We conduct a detailed investigation of defects in two representative amorphous oxides: amorphous Al2O3 (am-Al2O3) and TiO2 (am-TiO2), by combining ab initio molecular dynamics (MD) simulations and hybrid functional calculations. Our results indicate that o ...
EPFL2019Determination and optimization of material parameters of particle-based LaTiO2N photoelectrodes
Sophia Haussener, Ulrich Aschauer, Yannick Kenneth Gaudy
We developed a validated numerical model capable of predicting the photocurrent-voltage characteristics of oxide and oxynitride particle-based photoelectrodes and identifying the critical parameters affecting the performance of those photoelectrodes. We us ...
2018Defect chemistry of methylammonium lead iodide
The present work deals with the defect chemistry and charge transport properties in halide perovskites, and in particular in the archetypal methylammonium lead iodide. These materials are extensively researched due to their very promising application as li ...
EPFL2018Enhancing the optoelectronic properties of amorphous zinc tin oxide by subgap defect passivation: A theoretical and experimental demonstration
Christophe Ballif, Aïcha Hessler-Wyser, Quentin Thomas Jeangros, Monica Morales Masis, Jakub Holovsky, Martial Duchamp, Oscar Esteban Rucavado Leandro, Federica Landucci
The link between sub-bandgap states and optoelectronic properties is investigated for amorphous zinc tin oxide (a-ZTO) thin films deposited by RF sputtering. a-ZTO samples were annealed up to 500 °C in oxidizing, neutral, and reducing atmospheres before ch ...
American Physical Society2017