... capture into the charged dot maybe realized either via tunneling through the barrier orvia thermal excitation above the barrier. The relativeprobability of these two processes depends on the char-acteristic ... In the case o f the intra-dot doping, the dot charge nqis equal to the dot population n reduced by the number of dopants pin the dot, i.e., nq= n-p. In the case of the inter-dotdoping, the ... s the height of the local potential barrier, which is a function of the built-in-dot charge Q=enq.As shown in Figure 5, the height of the potential bar-rier in the direction parallel to the...