SIKELOR

Silicon kerf loss recycling

 Coordinatore HELMHOLTZ-ZENTRUM DRESDEN-ROSSENDORF EV 

 Organization address address: BAUTZNER LANDSTRASSE 400
city: DRESDEN
postcode: 1328

contact info
Titolo: Dr.
Nome: Rainer
Cognome: Maletti
Email: send email
Telefono: +49 3512603462
Fax: +49 3512602700

 Nazionalità Coordinatore Germany [DE]
 Totale costo 1˙954˙286 €
 EC contributo 1˙401˙498 €
 Programma FP7-ENVIRONMENT
Specific Programme "Cooperation": Environment (including Climate Change)
 Code Call FP7-ENV-2013-two-stage
 Funding Scheme CP
 Anno di inizio 2013
 Periodo (anno-mese-giorno) 2013-11-01   -   2016-10-31

 Partecipanti

# participant  country  role  EC contrib. [€] 
1    HELMHOLTZ-ZENTRUM DRESDEN-ROSSENDORF EV

 Organization address address: BAUTZNER LANDSTRASSE 400
city: DRESDEN
postcode: 1328

contact info
Titolo: Dr.
Nome: Rainer
Cognome: Maletti
Email: send email
Telefono: +49 3512603462
Fax: +49 3512602700

DE (DRESDEN) coordinator 395˙922.00
2    GARBO SRL

 Organization address address: VIA PRATI NUOVI 9
city: CERANO NO
postcode: 28065

contact info
Titolo: Mrs.
Nome: Ilaria
Cognome: Lombardi
Email: send email
Telefono: +39 0321771897

IT (CERANO NO) participant 284˙282.00
3    UNIVERSITA DEGLI STUDI DI PADOVA

 Organization address address: VIA 8 FEBBRAIO 2
city: PADOVA
postcode: 35122

contact info
Titolo: Prof.
Nome: Andrea
Cognome: Stella
Email: send email
Telefono: 390498000000

IT (PADOVA) participant 262˙574.00
4    UNIVERSITY OF GREENWICH

 Organization address address: "Old Royal Naval College, Park Row, Greenwich"
city: LONDON
postcode: SE10 9LS

contact info
Titolo: Ms.
Nome: Alison
Cognome: Yakub
Email: send email
Telefono: 442083000000

UK (LONDON) participant 233˙396.00
5    ELEKTRISCHE AUTOMATISIERUNGS- UND ANTRIEBSTECHNIK EAAT GMBH CHEMNITZ

 Organization address address: ANNABERGER STRASSE 231
city: CHEMNITZ
postcode: 9120

contact info
Titolo: Prof.
Nome: Heinz
Cognome: Steinbach
Email: send email
Telefono: +49 3715301912

DE (CHEMNITZ) participant 225˙324.00

Mappa


 Word cloud

Esplora la "nuvola delle parole (Word Cloud) per avere un'idea di massima del progetto.

garbo    sawing    fas    wafering    loss    commercial    photovoltaic    carbide    fixed    diamond    las    size    particles    melt    abrasive    energy    crystallisation    solar    sio    crystalline    silicon    combination    electromagnetic   

 Obiettivo del progetto (Objective)

'Solar energy direct conversion to electricity is expanding rapidly to satisfy the demand for renewable energy. The most efficient commercial photovoltaic solar cells are based on silicon. While the reuse of feedstock is a severe concern of the photovoltaic industry, up to 50% of the valuable resource is lost into sawdust during wafering. Presently, the majority of silicon ingots are sliced in thin wafers by LAS (loose abrasive sawing) using slurry of abrasive silicon carbide particles. The silicon carbide is not separable from the silicon dust in an economical way. The newer FAS (fixed abrasive sawing) uses diamond particles fixed to the cutting wire. It is expected that FAS will replace LAS almost completely by 2020 for poly/mono-crystalline wafering. The intention of the proposed project is to recycle the FAS loss aiming at a sustainable solution. The main problem is the large surface to volume ratio of micron size silicon particles in the kerf loss, leading to formation of SiO2 having a detrimental effect on the crystallisation. The compaction process developed by GARBO meets the requirements of a reasonable crucible-loading factor. Overheating the silicon melt locally in combination with optimised electromagnetic stirring provides the means to remove SiO2. The technology developed by GARBO removes the organic binding agents, leaving about 200 ppm wt diamond particle contamination. If untreated, the carbon level is above the solubility limit. Formation of silicon carbide and precipitation during crystallisation is to be expected. The electromagnetic mixing, in combination with the effective means to separate electrically non-conducting silicon carbide and remaining SiO2 particles from the silicon melt by Leenov-Kolin forces and the control of the solidification front, is the proposed route to produce the solar grade multi-crystalline silicon blocks cast in commercial size in a unified process.'

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