Improvement of Cochineal Extract (Dactylopius coccus Costa) Properties Based on the Green Synthesis of Silver Nanoparticles for Application in Organic Devices

Figure 7

Atomic force micrographs of 1 × 1 µm² thin films (on glass) of (a) cochineal pigment and AgNPs synthesized with (b) 0.1 ml and (c) 0.4 ml of cochineal extract solution. (d) Atomic force micrograph of 200 × 200 nm² from the same batch as shown in (c). Electric potential curves (e) as a function of time of cochineal pigment and AgNPs (0.1 and 0.4 ml of the cochineal extract).

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(b)

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(e)