In this work we report the new type of ultra-thin photovoltaic cells that is possible to realize using freestanding macroporous silicon membranes. Study of macroporous silicon formation and membrane separation was carried out using p-type 1 and 10 Ohm·cm c-Si wafers and hydrofluoric acid containing electrolyte. Different passivation methods were used in order to investigate its effect on the lifetime of photo-generated carriers. The best lifetime response of 163 μs was measured for newly developed phosphorus light-diffusion passivation process. Relatively high lifetime value obtained indicates that a proper surface passivation may permit the fabrication of thin film photovoltaic cells using freestanding macroporous silicon membranes.
Investigation of macroporous silicon as a material for ultra-thin photovoltaic cells / Kholostov, Konstantin; Balucani, Marco; Nenzi, Paolo; Izzi, Massimo; Tucci, Mario; Palma, Fabrizio. - ELETTRONICO. - (2013), pp. 1477-1479. (Intervento presentato al convegno 28th European Photovoltaic Solar Energy Conference and Exhibition tenutosi a Paris, France nel 30 September - 4 October 2013) [10.4229/28thEUPVSEC2013-2BV.3.45].
Investigation of macroporous silicon as a material for ultra-thin photovoltaic cells
KHOLOSTOV, KONSTANTIN;BALUCANI, Marco;NENZI, Paolo;PALMA, Fabrizio
2013
Abstract
In this work we report the new type of ultra-thin photovoltaic cells that is possible to realize using freestanding macroporous silicon membranes. Study of macroporous silicon formation and membrane separation was carried out using p-type 1 and 10 Ohm·cm c-Si wafers and hydrofluoric acid containing electrolyte. Different passivation methods were used in order to investigate its effect on the lifetime of photo-generated carriers. The best lifetime response of 163 μs was measured for newly developed phosphorus light-diffusion passivation process. Relatively high lifetime value obtained indicates that a proper surface passivation may permit the fabrication of thin film photovoltaic cells using freestanding macroporous silicon membranes.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
