Electronic Energy Structure

A critical parameter in determining the operating efficiency of polymer LEDs is the luminescence quantum efficiency of singlet excitons in the polymer i.e. the probability that a singlet exciton will decay radiatively. The luminescence quantum 

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Van Huis and Schaefer [8] found that CIO4 has a minimum electronic energy structure of C2v symmetry in contrast with an experimental assignment from infrared spectra by Grothe and Willner [9]. These authors arrived at C31, as the appropriate symmetry group for CIO4 in a neon matrix. The continued interest in the perchlorate radical has prompted the present small study of its electronic features and bonding characteristics. 

The foregoing discussion has been couched in terms of the electronic structure of minerals and its consequent effects on absorbate reactions. Redox, aprotic acid, and covalent site types can all be considered to operate by electron/hole transfers, whether this be singly or in pairs, uni- or equi-lateral, partial or complete. Expressed in these terms, it is clear that these canonical site types, and reactions produced by them, represent limiting cases. The boundary lines between them must grow very fuzzy if additional electron delocalization is provided by excitation of either reactant or catalyst. Because of the electronic energy structure of minerals and their... 

In the development of active photocatalysts imder visible light, it is essential to control their electronic energy structure. The strategies for controlling the energy structure of photocatalysts for water splitting may be classified in three ways (i) cation or anion doping, (ii) use of mixed semiconductor composites, and (iii) use of semiconductor alloys. 

The main idea of our study was to show the efficiency of synchrotron investigation for III-V materials with nanostructures. We investigated electron energy structure of unoccupied electron states in nanostructiues with InP quantum dots buried in InGaP matrix grown on GaAs substrates and porous InP. 

The field of nanophase materials is one that covers a wide and active area of research. The various properties of these materials, including mechanical, optical, electrical, and structural, are often very different from the same materials in the bulk phase. An example of this difference is the case of quantum dots (QDs) - nanoparticles that are sufficiently small that their electronic energy structure is changed from that of the bulk material. The size regime of semiconductor QDs varies from about 1 nm up to tens of nm in size, depending on the material properties. 

Kolpachev, A. B. Nikiforov, I. Ya. (1988). Electronic Energy Structure of Substoichiometric Niobium and Vanadium Carbides. Moscow, All-Union Institute of Scientific and Technical Information (VINITI) deposited materials. No 2522-B88. 

Kolpachev, A. B. (1989). Electronic energy structure of transition metal... 

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