Charge transport molecular crystals

In the above consideration it has been tacitly assumed that the charge carrier mobility docs not depend on the electric field. This is a good approximation for molecular crystals yet not for disordered systems in which transport occurs via hopping. Abkowitz et al. [37] have solved that problem for a field dependence of ft of the form p-po (FIFU) and trap-free SCL conduction. Their treatment predicts... 

Charge transport through an array of semiconductor nanocrystals is strongly affected by the electronic structure of nanocrystal surfaces. It is possible to control the type of conductivity and doping level of quantum dot crystals by adsorbing/desorbing molecular species at the nanocrystal surface. As an... 

In the unsynchronized resonance, just one bond is broken, with the concomitant transfer of one electron from one molecule to another and the formation of a new bond (Fig.2). In order for this to occur, one atom has to lose an electron, say atom 4, becoming a positive ion, and another atom must have an extra orbital to receive the extra electron, say atom 2, becoming a negative ion. Thus we form the structure (1-2 2 -3), that we will call metallic structure, where 2 , the metallic orbital, is the extra atomic orbital on atom 2. In a molecular hydrogen crystal, the unsynchronized resonance would provide a mechanism for charge transport and confer metallic properties to the system. 

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