2003
DOI: 10.1103/physrevb.68.195308
|View full text |Cite
|
Sign up to set email alerts
|

Limitation of the mobility of charge carriers in a nanoscaled heterogeneous system by dynamical Coulomb screening

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
1

Citation Types

3
32
0

Year Published

2004
2004
2018
2018

Publication Types

Select...
7
2

Relationship

0
9

Authors

Journals

citations
Cited by 29 publications
(35 citation statements)
references
References 10 publications
3
32
0
Order By: Relevance
“…62 This process involves a hopping motion over few ionic diameters 26 and has been suggested to play a key role in ionic transport and thus in the systems' conductivity. 35,59,60,63 Since the population balance between strongly and weakly bound counterions is, in fact, dynamic in nature, 30,31 it is straightforward to assume that this mechanism works toward promoting the exchange between the two populations. A typical method for the identification of such a process is through the detection of a dynamic contrast between the examined particles; such a contrast can be inferred from the development of different peaks in their self-Van Hove function, 53,54 as is the case in our systems ͑Figs.…”
Section: Discussionmentioning
confidence: 99%
“…62 This process involves a hopping motion over few ionic diameters 26 and has been suggested to play a key role in ionic transport and thus in the systems' conductivity. 35,59,60,63 Since the population balance between strongly and weakly bound counterions is, in fact, dynamic in nature, 30,31 it is straightforward to assume that this mechanism works toward promoting the exchange between the two populations. A typical method for the identification of such a process is through the detection of a dynamic contrast between the examined particles; such a contrast can be inferred from the development of different peaks in their self-Van Hove function, 53,54 as is the case in our systems ͑Figs.…”
Section: Discussionmentioning
confidence: 99%
“…Furthermore, electrons travelling in low-conducting media form long-range polarization that modifies their mobility. 61,62 Our results presented in this paper show the thermodynamic components of the diffusion coefficient, D n , that is measured in nanostructured semiconductors by small perturbation kinetic techniques. The relevance of the expression D n ) T D J is demonstrated for electron diffusion, and this equation may be useful for considering the transport of electrons that, in addition to follow trapping and detrapping events, interact nontrivially with the surrounding medium.…”
Section: Discussionmentioning
confidence: 99%
“…Experimental evidence in nanostructured electrodes indicates a dependence of electron transport properties on the surrounding medium. 9,60,61 The details of such variations have not been clarified yet, so one can only speculate that the contribution of interactions and in particular local conditions of shielding could be exert a relevant influence on D ch . For example, electrons interact with the solid lattice constituting polarons, and Coulomb repulsion becomes significant when many electrons are packed into a nanoparticle.…”
Section: Discussionmentioning
confidence: 99%
“…1͒. Although there are no mobile holes in this system, it is important to take into account the presence of additional shielding charges in the bulk of the porous electrode, 8 which may screen the electrical field formed by the diffusing electrons. Shielding affects the SPV both in a temporal scale, the dielectric relaxation time, and in a spatial scale, the screening length S .…”
Section: Theoretical Considerations For Diffusion Spvmentioning
confidence: 99%