Quantum confinement and carbon nanodots - A conceptual view of the origin of diffuse interstellar bands

Open Access

Fig. 3

Product ${m_{w}^{⋆} d^{2}}$ $\{ m_w^\star \, d^2 \}$ , derived from Eq. (13), for over 550 DIB wavelengths (Fan et al. 2019). The horizontal grey band shows typical values for the effective carrier masses ( $m_{w}^{⋆} = 0.06 - - 0.11$ $m_w^\star = 0.06$-$0.11$ ). The squares indicate the radii of the diamond network particles (Jones 2022, see Sect. 4) for $m_{w}^{⋆} = 0.1 m_{e}$ $m_w^\star = 0.1\,m_e$ . The vertical dark grey band marks the mean radius range for pre-solar nanodiamonds.

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