Descripción
|
|
---|---|
To optimize the last high temperature step of a standard solar cell fabrication process (the contact cofiring step), the aluminium gettering is incorporated in the Impurity-to-Efficiency simulation tool, so that it models the phosphorus and aluminium co-gettering effect on iron impurities. The impact of iron on the cell efficiency will depend on the balance between precipitate dissolution and gettering. Gettering efficiency is similar in a wide range of peak temperatures (600-850 ºC), so that this peak temperature can be optimized favoring other parameters (e.g. ohmic contact). An industrial co-firing step can enhance the co-gettering effect by adding a temperature plateau after the peak of temperature. For highly contaminated materials, a short plateau (< 2 min) at low temperature (600 ºC) is shown to reduce the dissolved iron. | |
Internacional
|
Si |
Nombre congreso
|
27th European Photovoltaic Solar Energy Conference |
Tipo de participación
|
960 |
Lugar del congreso
|
Frankfurt (Alemania) |
Revisores
|
Si |
ISBN o ISSN
|
3-936338-28-0 |
DOI
|
10.4229/27thEUPVSEC2012-2BV.5.6 |
Fecha inicio congreso
|
24/09/2012 |
Fecha fin congreso
|
28/09/2012 |
Desde la página
|
1347 |
Hasta la página
|
1350 |
Título de las actas
|
Proc. 27th EU PVSEC |