Liquid-Phase Exfoliated GeSe Nanoflakes for Photoelectrochemical-Type Photodetectors and Photoelectrochemical Water Splitting
Gabriele Bianca, Marilena Isabella Zappia, Sebastiano Bellani, Zdeněk Sofer, Michele Serri, Leyla Najafi, Reinier Oropesa‐Nuñez, Beatriz Martín‐García, Tomáš Hartman, Luca Leoncino, David Sedmidubský, Vittorio Pellegrini, G. Chiarello, Francesco Bonaccorso
Abstract
(external quantum efficiency of 86.3%) under 455 nm excitation wavelength in acidic electrolyte. The obtained performances are superior to those of several self-powered and low-voltage solution-processed photodetectors, approaching that of self-powered commercial UV-Vis photodetectors. The obtained results inspire the use of 2D GeSe in proof-of-concept water photoelectrolysis cells.
Topics & Concepts
Materials scienceWater splittingPhotodetectorPhotoelectrochemistryOptoelectronicsPhase (matter)Liquid phasePhotoelectrochemical cellElectrochemistryElectrodePhotocatalysisElectrolyteCatalysisPhysical chemistryPhysicsChemistryBiochemistryThermodynamicsOrganic chemistryAdvanced Photocatalysis TechniquesChalcogenide Semiconductor Thin FilmsQuantum Dots Synthesis And Properties