title: Hybrid inorganic-polymer structures for solar cells
reg no: ETF6162
project type: Estonian Science Foundation research grant
status: accepted
institution: Tallinn Technical University
head of project: Sergei Bereznev
duration: 01.01.2005 - 31.12.2007
description: Electrically conductive polymers (ECP) are a novel class of conductive materials which combine optical and electrical properties of semiconductors with processing advantages, good mechanical properties and low cost of polymers. The copper-indium chalcogenides (CICh) are direct-gap polycrystalline semiconductors with very high optical absorption coefficients and they are presently being extensively studied for application in solar cells. Combination of CICh with ECP, e.g. polyparaphenylene (PPP), polypyrrole (PPy) or poly(3,4-ethylenedioxythiophene) (PEDOT) is attractive for use in thin-film PV cell structures. During the last 3 years a number of hybrid inorganic-organic PV structures were prepared and investigated in our laboratory (ETF 4857, 5190). At the same time several fundamental problems are still unsolved.
The project will be devoted to the research and development of solar cell elements based on CICh in combination with ECP in the form of multilayer and composite structures. Number of new optimized multilayer and composite structures will be prepared, their properties will be characterised, their suitability for PV solar cells applications will be investigated and solar cells will be built up on the basis of developed structures in close cooperation with EU PSB Project. Different technologies including vacuum evaporation, spin coating, chemical- and electrodeposition techniques will be used for production of CICh/ECP junction based solar cells. The object of this research is innovative and therefore, this project gives the good possibility for the publication of numerous articles and most likely will be as initial point for future innovative projects.
I would like to participate in the competition "My first grant".

project group
no name institution position  
1.Sergei BereznevTallinn Technical UniversityTTU, Department of Materials Science 
2.Igor GolovtsovTallinn Technical Universityresearcher 
3.Julia KoisTallinn Technical Universityreseacher 
4.Andres ÖpikTallinn Technical Universityprofessor, physical chemistry