Unlocking NIR‐II Photoluminescence in 2D Copper Tetrasilicate Nanosheets through Flame Spray Synthesis (Adv. Mater. 40/2025)

Robert Nißler

Nanoparticle Systems Engineering Laboratory Institute of Energy and Process Engineering (IEPE) Department of Mechanical and Process Engineering (D‐MAVT) ETH Zurich Sonneggstrasse 3 Zurich 8092 Switzerland

Quanyu Zhou

Björn Hill

Department of Chemistry Bochum University Universitätsstraße 150 44801 Bochum Germany

Sabrina L.J. Thomä

Center for X‐ray Analytics Swiss Federal Laboratories for Materials Science and Technology (Empa) Ueberlandstrasse 143 Dübendorf 8600 Switzerland

Lukas R.H. Gerken

Nanoparticle Systems Engineering Laboratory Institute of Energy and Process Engineering (IEPE) Department of Mechanical and Process Engineering (D‐MAVT) ETH Zurich Sonneggstrasse 3 Zurich 8092 Switzerland

Aurelio Borzi

Center for X‐ray Analytics Swiss Federal Laboratories for Materials Science and Technology (Empa) Ueberlandstrasse 143 Dübendorf 8600 Switzerland

Kevin Roost

Nanoparticle Systems Engineering Laboratory Institute of Energy and Process Engineering (IEPE) Department of Mechanical and Process Engineering (D‐MAVT) ETH Zurich Sonneggstrasse 3 Zurich 8092 Switzerland

Benjamin Mächler

Nanoparticle Systems Engineering Laboratory Institute of Energy and Process Engineering (IEPE) Department of Mechanical and Process Engineering (D‐MAVT) ETH Zurich Sonneggstrasse 3 Zurich 8092 Switzerland

Xosé Luís Deán‐Ben

Institute for Biomedical Engineering Department of Information Technology and Electrical Engineering ETH Zürich Zürich 8093 Switzerland

Antonia Neels

Sebastian Kruss

Daniel Razansky

Department of Information Technology and Electrical Engineering, Institute for Biomedical Engineering, ETH Zurich

Inge K. Herrmann

Nanoparticle Systems Engineering Laboratory Institute of Energy and Process Engineering (IEPE) Department of Mechanical and Process Engineering (D‐MAVT) ETH Zurich Sonneggstrasse 3 Zurich 8092 Switzerland