Corner-3

RTD projects

R&D projects in Czech Republic

Providers of research projects carried out in Solartec s.r.o. laboratories are:

Ministry of Industry and Trade of the Czech Republic

MPO FR-TI1/603:Implementation of effective technology for thin anti-reflective and passivations layers deposition in the production of crystalline solar cells.

Passivation and antireflection coatings of solar cells produced by Solartec are currently being implemented stoichiometric nitride. The project is focused on efficient conversion of solar energy to electricity. New generation of photovoltaic panel based on the internal concentrator diffractive and small silicon chip size. The project involves the gradual hierarchical solution photovoltaic cell and panel. Si3N4 layers grow on silicon substrates under very low pressure and high temperature (900C) from the gaseous phase of dichlorosilane and ammonia. High processing temperatures result in irreversible degradation of electronic properties of the starting substrates, which result in greatly limit the efficiency of the resulting solar cell. The project addresses the issue of passivation and deposition of thin anti-reflective coating technology research, based on magnetron sputtering. In terms of low-temperature plasma deposition is possible to realize a wide range of suitable materials, particularly where the advantage is the controllability of the process, determine the exact composition of the generated classes and easy reproducibility. The project includes research on non-chemical cleaning of silicon wafers immediately before deposition using plasma-activated hydrogen radicals.

Technology Agency of the Czech Republic

MTP TA01020972 Modification of the particular technology facilities of the batch processes for the yield enhancement of the highly efficient silicon solar cells using the numerical and physical pre- and post-processing models CFD-ACE+ and Flow Simulation.

Our goal is to demonstrate the technology of the production of the highly efficient solar cells with the standard structure and high yield of the production using highly innovative design of the high temperature reactors (for the diffusion of phosphorus or boron, thermal oxidation, LPCVD or PECVD deposition of the antireflection and passivation coatings, and sintering furnaces) produced by SVCS Process Innovation, s.r.o., to strengthen the companies’ position on the European and world market. The designed and verified technology will be applied in the frame of the suggested project at Solartec, s.r.o. for the design and production of the highly efficient customer tailored solar cells and the solar cells with concentrator, eventually to sell the license of the verified technology.

European projects

FP7-SME-201, REPTILE: Repairing of Photovoltaic Wafers and Solar Cells by Laser Enabled Silicon Processing.

Silicon PV industry generates nowadays a large amount of non-optimal PV cells due to the complex production process and the high production speed. About 8 % of all produced cells have some defect which affects its efficiency, and even when this is detected in factory, the production cost and added value is already on the silicon. PV companies have either to sell them bellow cost, or recycle them through an external process. REPTILE project intends to provide a solution to this situation by developing an automated processing technique to detect, isolate and repair the local defects of silicon wafers and cells which downgrade their performance, thus obtaining new added value on those products, all ready to be integrated in the actual production chain. Actually, the REPTILE system will enable the use of cells and wafers with severe damage for the production of PV cells and modules of improved characteristics (optimal balance between cells) and custom geometry for infrastructure and building integration applications. Besides, with this automated technique, the consortium (which integrates three SMEs from different areas of the European PV sector) intends to consolidate the role of SMEs in the Solar Energy industry, by providing a tool for production of items demanded by niche and special market at a very competitive cost, as long as the source are the abundant rejects from PV industry. REPTILE also provides a new market line for the European sector of laser equipment, with a new industrial application which can have a faster permeation than other potential uses of laser in PV industry. The research leading to these results has received funding from the European Union Seventh Framework Programme (FP7/2007-2013) under grant agreement n° 286955.

FP7-PEOPLE-ITN-2008: Materials and Interfaces for Energy Conversion and Storages.

There is a conconsensus today that supplying a growing world population with energy is one of the biggest – if not the biggest – challenge mankind is facing in the 21st century. The reasons for this are numerous and are among others related to the observation that energy is critical to human development, including economic growth, equity and employment, and that fossil fuels – our current energy backbone – are slowly but inevitably declining. This generates an increasing demand of well-educated young scientists knowledgeable in materials science for energy conversion and storage, because a central problem for all forms of energy is their efficient generation or conversion as well as energy storage with sufficiently high density (e.g., hydrogen or biofuels). In this broader context, the proposed Marie Curie Initial Training Network (ITN) "MATCON" will concentrate on the following topics of fundamental importance:photo-electrochemical generation of hydrogen by water splitting, bio-inspired and biomimetic energy conversion, Thermoelectric and thermoionic heat conversion for all of these topics, alternative or new materials and materials combinations will be necessary to improve the efficiency of energy conversion or to overcome existing problems with stability. Therefore, the Network will also put considerable emphasis on the tailoring and development of specific materials for electrodes, substrates and functional interfaces. This expertise will be of central importance for the successful implementation of the different research topics outlined above and, at the same time, provide an ideal basis for the training of the young researchers in state of the art materials science and semiconductor technology.

FP7-SME-2011-BSG Development of a competitive 0 Global Warming Potential (GWP) dry process to reduce the dramatic water consumption in the ever-expanding solar cells manufacturing industry.

The proposed project (SOLNOWAT) aims to develop a dry process alternative for the solar Photovoltaic (PV)cell industry. This innovation will allow for the reduction in the very high water consumption and Global Warming Potential (GWP) emissions of the current manufacturing process while meeting all industrial production requirements. Novel technical solutions will be developed, including:

  • A novel atmospheric pressure, Silicon (Si) wafer texturing process based on thermally activated Fluorine.
  • A novel mass spectrometric process monitoring solution.
  • An innovative in-process non-contact Si wafer handling solution.
  • A complete PV solar cell manufacturing process incorporating all these developments.

This project will clearly outline the environmental impact, cost and solar cell conversion efficiency improvements associated with the new manufacturing processes and will include dissemination to cell manufacturers. It will add significant value for the SMEs partners involve, by the development of new manufacturing equipment for PV production.