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Nanocrystal-based solar cells and scanning optical microscopy

CIGS nanocrystal-based “inks” for use in low cost solar cells

CIGS nanocrystal-based "inks" for use in low cost solar cells

Figure 1: a-c) Transmission electron microscopy (TEM) images of CIGS nanocrystals, d) CIGS nanocrystal-based “ink” used in making solar cells, e) spray-deposition of “ink” to form a light-absorbing layer, f) image of a CIGS nanocrystal-based solar cell on a glass substrate and g) on a flexible plastic substrate, h) cross-sectional scanning electron microscopy (SEM) image of a solar cell made with CIGS nanocrystals, i) I-V curves of a solar cell made with CIGS nanocrystals that shows a power conversion efficiency of more than 3%.

Credits: Brian Goodfellow, Vahid Akhavan, Matthew Panthani