Pure Silicon Recovering from Photovoltaic Modules

• Autorzy: Radziemska E. , Seramak T. , Ostrowski P.
• Języki publikacji: EN

Abstrakty

EN

Photovoltaic technology is worldwide used to provide reliable and cost-effective electricity for industrial, commercial, residential and community applications. The average lifetime of PV modules can be expected to be more than 25 years. The disposal of PV systems will emerge as a problem, considering the still increasing production of PV modules. Recycling of such modules can be done at about the same cost level as its disposal. Recovering the pure silicon from damaged or end-of-life PV modules can lead to economical and environmental benefit. Chemical treatment conditions need to be precisely adjusted in order to achieve the required purity level of the recovered silicon. For crystalline silicon based PV systems, a series of etching processes has been carried out as follows: electric connectors (etching or removing), ARC and n-p junction etching. The chemistry of etching solutions was individually adjusted for the different silicon cell types. Efforts were taken in order to formulate a universal composition of etching solution.

Słowa kluczowe

EN

silicon; recycling; photovoltaic cells; etching; renewable energy sources

• Wydawca: Politechnika Gdańska
• Czasopismo: Advances in Materials Science
• Rocznik: 2008
• Tom: Vol. 8, nr 4(18)
• Strony: 28--34
• Opis fizyczny: Bibliogr. 7 poz., rys., fot.

Twórcy

autor

Radziemska E.

autor

Seramak T.

autor

Ostrowski P.

• Gdansk University of Technology, 1Chemical Faculty, 2Mechanical Faculty, 80-952 Gdansk, Narutowicza 11/12, Poland

Bibliografia

• 1. Wambach K., Schlenker S., Springer J., Konrad B., Sander K., Despotou E., Stryi-Hipp G., PV cycle - on the way to a sustainable and efficient closed loop system for photovoltaics, 22nd European Photovoltaic Solar Energy Conference, Milan, Italy 2007.
• 2. Müller A., Röver I., Wambach K., von Ramin-Marro D.W., Recovery of high value material of different photovoltaic technologies, 22nd European Photovoltaic Solar Energy Conference, 3-7 September, Milan, Italy 2007.
• 3. Röver I., Wambach K., Weinreich W., Roewer G., Bohmhammel K., Process Controlling of the Etching System HF/HNO3/H2O, 20th European Photovoltaic Solar Energy Conference 2005, Barcelona, Spain.
• 4. Acker J., Henßge A., Chemical analysis of acidic silicon etch solutions II. Determination of HNO3, HF, and H2SiF6 by ion chromatography, Talanta 72 (2007), pp. 1540–1545.
• 5. Wolf H.F., Semiconductors, WNT Warszawa 1975.
• 6. Radziemska E., Ostrowski P., Seramak T., Obróbka chemiczna krzemowych ogniw słonecznych jako najważniejszy etap w recyklingu modułów fotowoltaicznych, Środkowoeuropejska Konferencja Substancje Chemiczne w Środowisku Przyrodniczym ECOpole, Piechowice 2008, pp. 1-9.
• 7. Radziemska E., Lipiński M., Ostrowski P., Re-use of photovoltaic crystalline silicon solar cells – technological possibilities, XII International Symposium Heat Transfer and Renewable Sources of Energy 2008, pp. 187-194.