UPCON 2026 (Brno, Czech Republic) 5th Conference on Properties, Design, and Applications of Upconversion Nanomaterials REGISTRATIONRegistration is still open!!!Students (bachelor/master/PhD): 400 Euros CLICK HERE FOR STUDENT REGISTRATIONNon-Students (everyone else): 550 EurosCLICK HERE FOR NON-STUDENT REGISTRATION