| Material | Dielectric    Constant | Electrical    Conductivity (Ω-1 cm-1) | Source | 
      
        | Gold | 1.75,    2.63 3-6
 | 10-3-10-9 | Link    et al. [17] Chen    et al. [18]
 | 
      
        | Silver | 3.68-3.95 | 10-3-10-7 | Roy    et al. [19] Yeh    et al. [20]
 Kornain    et al [21]
 | 
      
        | Carbon | 2.4 (graphite)
 | 10-4-10-16 | Leonard    et al.[22] Marinho.    [23]
 | 
      
        | Polystyrene | 2.4-3 | 10-12 | Yang    et al. [24] Barrau    et al. [25]
 | 
      
        | Silicon    QD | 11.4 | 0.1-0.2 (p-type,    converted from electrical resistivity values)
 | Wang    et al. [26] Snow    et al. [27]
 Photopoulos    et al. [28]
 |