Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"organic/organic"”.
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Separation of various organic-organic and aqueous-organic solutions via pervaporation
… in pharmaceutical processing. However, the organic solvents involved in pharmaceutical product synthesis are chemically demanding; very few polymers are able to withstand them. An ideal membrane would be polymeric having a high thermal, chemical and mechanical stability. Such a membrane is …
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Ordering in weakly bound molecular layers: organic-inorganic and organic-organic heteroepitaxy
… Here, the term substrate either refers to inorganic crystal surfaces or highly ordered layers of another organic molecular species. In order to calculate the total interface potential of extended molecular domains, a new calculation technique (GRID technique) is developed in the first part of …
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Electronic properties of metal-organic and organic-organic interfaces studied by photoemission and photoabsorption spectroscopy
In this work systematic studies of the organic semiconductor CuPc have been presented. In general the investigation can be devided in three parts. In the first one we have studied the electronic structure of clean CuPc thin film. The next two parts are devoted to organic-organic and metal–organic …
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Theoretical investigations of the electronic processes in organic photovoltaics
The design of more efficient organic photovoltaics starts with an increase in understanding of the fundamental processes related to organic photovoltaics, such as the charge separation processes at the organic/organic interface, which can only be remedied by a combined theoretical and experimental …
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The role of spatial size and orientation of electronic wavefunction in exciton dissociation at van der Waals interfaces
Organic photovoltaic (OPV) devices are environmental-friendly, lightweight, flexible and inexpensive. However, one of the setbacks for commercial application is its relative low performance in solar to electrical energy conversion compared to inorganic counterparts such as Si solar cells. Unlike …
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Tunneling spectroscopy of highly ordered organic thin films
… Au(100) single crystal was used as substrate for organic molecular beam epitaxy. Highly ordered organic thin films of the molecules 3,4,9,10-perylenetetracarboxylic-3,4,9,10-dianhydrid (PTCDA) and hexa-peri-hexabenzo-coronene (HBC) as well as organic-organic heterostructures on reconstructed …
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Co-Assembly Of Nanostructured Hybrid Materials For Energy Applications
… on multiple length scales by co-assembly of organic and organic/inorganic components. These materials are promising for a number of applications, and in particular for energy conversion devices. In the first part, organic-inorganic co-assembly is coupled with conventional heating (102-105 s) …
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Studies of and methods for electronic properties of large chemical systems
… LED, and a few donor/acceptor molecules at an organic/organic interface. We find that these models work well for explaining experiments provided we can identify a local region that captures the property of interest. Second, we consider a situation in which the property of interest is not local. …
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The Use of Solubility Parameters to Select Membrane Materials for Pervaporation of Organic Mixtures
… of published research into pervaporation of organic/organic binary solutions separated by homogeneous membranes indicated that the solvent whose HSP value was closest to that of the polymer would preferentially permeate. This relationship did not always hold for halogenated solvents or …
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Borox catalysis : a new frontier in chiral Bronsted acid catalysis derived from chiral borate anions
In this doctoral research, focus has been on the development of the new chiral Brønsted acid catalysts, large-scale synthesis, novel reaction methodologies and understanding their mechanisms by experimental/computational analysis. In due course of time, a pool of unprecedented chiral Brønsted acid …