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. 2013 Dec 24;4(1):19–45. doi: 10.3390/nano4010019

Figure 7.

Figure 7

(a) Layer structure of a Grätzel-type photovoltaic device utilising PbSe QDs as the absorbing species, with charge carrier transfer illustrated [77]; (b) Layer structure of a depleted heterojunction design photovoltaic device utilising PbSe QDs as the absorbing species [78].