Platinum carbonyl clusters: Double emitting quantum dots

The photophysical study of platinum carbonyl clusters shows that these clusters exhibit double emitting properties in the visible and near-infrared spectral region for single excitation wavelength. When deposited on glass, they self-assemble into long nanowires or spherical aggregates which still exhibit fluorescence properties analogous to those of the individual clusters, as shown by images taken with a fluorescent microscope at two different emission wavelengths with single excitation.