Dr. Celso de Mello Donega
Celso de Mello Donega is an Associate Professor in the Chemistry Department of the Faculty of Sciences at Utrecht University (Netherlands). His expertise is in the field of synthesis and optical spectroscopy of luminescent materials. His current research is focused on the chemistry and optoelectronic properties of colloidal semiconductor nanocrystals. The nanoscale dimensions of these materials give rise to size- and shape-dependent properties that can be further engineered by controlling their composition. This allows a remarkable degree of control over nanoscale excitons. Moreover, the organic capping layer opens up the possibility of surface chemistry manipulation, making it possible to tailor a number of properties, such as colloidal stability and the ability to self-organize in superlattices. His work has yielded a number of size-, shape-, and composition-controlled colloidal nanocrystals with improved or novel properties, and has contributed towards a better understanding of the chemistry and physics of nanoscale materials.