Objetivo Modern optoelectronic (OE) devices such as light-emitting or photovoltaic diodes offer exciting opportunities for the future. A wide range of materials has been utilized in these devices, including among others: organic materials, inorganic quantum dots and hybrid perovskites. While the functionality, performance and device physics vary strongly from material to material and device to device, all OE devices depend on the energy levels of their individual components and the interaction of the electronic states at the various heterointerfaces. Lacking a method to map the energy levels in a device, energy level diagrams reported for most devices consist of a combination of individual energy levels for each material, which neglect interactions between the materials (that may cause interfacial dipoles and/or band bending) and do not represent the true energetic landscape. Despite this, they are routinely used for interpretation of device performance and physics.This project aims to map the energy levels in real functional devices: revealing the true nature of buried interfaces, multilayers and contacts, and to answer fundamental long-standing questions in the field of OE, such as the origin of photovoltage losses and energetics of injection/extraction contacts of devices. We will develop and utilize a “Ultra-violet photoemission spectroscopy (UPS) depth profiling” technique based on the combination of UPS with Ar gas cluster ion beam (GCIB) etching that induces minimal surface damage, on a wide range of organic, inorganic and hybrid materials and devices. We will reveal the true energy level landscapes of devices and monitor their evolution throughout the device lifetime. Furthermore, we will explore the possibility to expand the use of GCIB etching beyond UPS as a new nanofabrication technique. These studies will open new frontiers in OE research and would allow the development of novel interface engineering approaches, device architectures and material design rules. Ámbito científico natural sciencesphysical sciencesopticsspectroscopy Palabras clave Ultra-violet photoemission spectroscopy gas cluster ion beam etching depth profiling optoelectronic devices heterointerfaces energy levels Programa(s) H2020-EU.1.1. - EXCELLENT SCIENCE - European Research Council (ERC) Main Programme Tema(s) ERC-2016-STG - ERC Starting Grant Convocatoria de propuestas ERC-2016-STG Consulte otros proyectos de esta convocatoria Régimen de financiación ERC-STG - Starting Grant Institución de acogida TECHNISCHE UNIVERSITAET DRESDEN Aportación neta de la UEn € 1 148 806,00 Dirección HELMHOLTZSTRASSE 10 01069 Dresden Alemania Ver en el mapa Región Sachsen Dresden Dresden, Kreisfreie Stadt Tipo de actividad Higher or Secondary Education Establishments Enlaces Contactar con la organización Opens in new window Sitio web Opens in new window Participación en los programas de I+D de la UE Opens in new window Red de colaboración de HORIZON Opens in new window Coste total € 1 148 806,00 Beneficiarios (3) Ordenar alfabéticamente Ordenar por aportación neta de la UE Ampliar todo Contraer todo TECHNISCHE UNIVERSITAET DRESDEN Alemania Aportación neta de la UEn € 1 148 806,00 Dirección HELMHOLTZSTRASSE 10 01069 Dresden Ver en el mapa Región Sachsen Dresden Dresden, Kreisfreie Stadt Tipo de actividad Higher or Secondary Education Establishments Enlaces Contactar con la organización Opens in new window Sitio web Opens in new window Participación en los programas de I+D de la UE Opens in new window Red de colaboración de HORIZON Opens in new window Coste total € 1 148 806,00 RUPRECHT-KARLS-UNIVERSITAET HEIDELBERG La participación finalizó Alemania Aportación neta de la UEn € 181 625,00 Dirección SEMINARSTRASSE 2 69117 Heidelberg Ver en el mapa Región Baden-Württemberg Karlsruhe Heidelberg, Stadtkreis Tipo de actividad Higher or Secondary Education Establishments Enlaces Contactar con la organización Opens in new window Sitio web Opens in new window Participación en los programas de I+D de la UE Opens in new window Red de colaboración de HORIZON Opens in new window Coste total € 181 625,00 LEIBNIZ INSTITUT FUR FESTKORPER UND WERKSTOFFORSCHUNG DRESDEN EV Alemania Aportación neta de la UEn € 167 500,00 Dirección HELMHOLTZSTRASSE 20 01069 Dresden Ver en el mapa Región Sachsen Dresden Dresden, Kreisfreie Stadt Tipo de actividad Research Organisations Enlaces Contactar con la organización Opens in new window Sitio web Opens in new window Participación en los programas de I+D de la UE Opens in new window Red de colaboración de HORIZON Opens in new window Coste total € 167 500,00