Communication pubs.acs.org/JACS
Identification of a Highly Luminescent Au22(SG)18 Nanocluster Yong Yu,† Zhentao Luo,† Daniel M. Chevrier,‡ David Tai Leong,† Peng Zhang,*,‡ De-en Jiang,*,§ and Jianping Xie*,† †
Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 119260 Department of Chemistry and Institute for Research in Materials, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada § Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States ‡
S Supporting Information *
The red-emitting Au22(SR)18 NC with its precise molecular formula provides a good opportunity for understanding unresolved luminescence fundamentals of thiolated Au NCs, such as the origin of the luminescence and the possible cluster structure of luminescent Au NCs. Most reported atomically precise Aun(SR)m NCs showed very weak luminescence in visible to near-infrared (NIR) region with a typical quantum yield (QY) of
