Effective Approach for an Order-of-Magnitude-Accurate Evaluation of the Electron Mobility in Colloidal Quantum Dot Films

Table 1

Parameters used in the mobility calculations. Calculated overlap integrals (), miniband widths (W), and effective masses at ( and are obtained along and by fitting the miniband curvature around with a parabola, according to equation (22). As they are anisotropic for the systems of interest, their arithmetic average is used in equation (24)) for films of closely packed (interdot separation bond length) CdSe and PbSe dots with diameter D. The values for the electron confining potential , the density of defects , and the size distribution (defined as the size difference between ‘defect’ and “regular” dots) are also reported.

Material	D (nm)								W (meV)
CdSe (wz)	3.84	3.59	5	1	9.0	0.26	0.45	0.36	78
PbSe	2.52	4.56	9.2	1	20.6	0.16	0.20	0.18	257