Figure 1: Low-temperature measurement and TD-DFT calculation of the optical spectra of Au144(SR)60. | Nature Communications

Figure 1: Low-temperature measurement and TD-DFT calculation of the optical spectra of Au144(SR)60.

From: Information on quantum states pervades the visible spectrum of the ubiquitous Au144(SR)60 gold nanocluster

Figure 1

In the calculation (red), R=CH3, while in the measurement (blue), R=C6H14. (The low sensitivity to different ligands is demonstrated in Supporting Fig. 3.) Plotted is the optical absorption cross-section, σ(ω), frequency-weighted (ω−2) to match the optical-absorbance function, σ(λ), versus the optical frequency, ω, in electron volt (eV) units of the photon energy (ℏω).

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