Improving Light Harvesting

Inorganic semiconductor nanoparticles have also been implemented as electron acceptors. For example, CdSe, CnInSc2 and PbS have been of interest becanse they absorb in the visible and can extend the blend absorption ont to the near infrared (Huynh et al, 2002 Sun et al, 2003), as discussed in Section 7.4.4. In one study, CdSe nanoparticles were combined with single-walled carbon nanotubes for improved light harvesting and as material variations for BHJ devices (Robel et al, 2005). 

This is sometimes used to alter the color of LEDs or to improve light harvesting in photovoltaic diodes. 

Aligned Nanofibers to Improve Light Harvesting and Charge Collection... 

A further strategy to improve light harvesting and charge collection can be the use of vertical arrays of Ti02 nanowires. As shown in Fig. 5.5, the electron... 

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