Different amounts of single wall carbon nanotubes (SWCNTs) have been sprayed on amorphous silicon substrates to form Schottky barrier solar cells. The measured external quantum efficiency showed a spectral behavior depending on the SWCNT network optical transparency, presenting a maximum up to 35% at a wavelength of about 460 nm. Ultrathin network of SWCNTs acts as semitransparent electrode and forms Schottky barrier with amorphous silicon, enabling new generation low cost amorphous silicon based solar cells. Numerical simulations show a poor efficiency of SWCNT contacts in collecting holes suggesting that improvement in contact quality is needed to further improve solar cell efficiency.
Del Gobbo, S., Castrucci, P., Scarselli, M.a., Camilli, L., DE CRESCENZI, M., Mariucci, L., et al. (2011). Carbon nanotube semitransparent electrodes for amorphous silicon based photovoltaic devices. APPLIED PHYSICS LETTERS, 98, 183113 [10.1063/1.3588352].
Carbon nanotube semitransparent electrodes for amorphous silicon based photovoltaic devices
CASTRUCCI, PAOLA;SCARSELLI, MANUELA ANGELA;Camilli, L;DE CRESCENZI, MAURIZIO;
2011-01-01
Abstract
Different amounts of single wall carbon nanotubes (SWCNTs) have been sprayed on amorphous silicon substrates to form Schottky barrier solar cells. The measured external quantum efficiency showed a spectral behavior depending on the SWCNT network optical transparency, presenting a maximum up to 35% at a wavelength of about 460 nm. Ultrathin network of SWCNTs acts as semitransparent electrode and forms Schottky barrier with amorphous silicon, enabling new generation low cost amorphous silicon based solar cells. Numerical simulations show a poor efficiency of SWCNT contacts in collecting holes suggesting that improvement in contact quality is needed to further improve solar cell efficiency.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
