Recent Advances on Renewable and Biodegradable Cellulose Nanopaper Substrates for Transparent Light-Harvesting Devices: Interaction with Humid Environment

Figure 12

(a) Pristine nanopaper before the cross-linking treatment. (b) Nanopaper after the cross-linking treatment. (c) Pristine nanopaper after immersion in water for 24 h. The thickness of the nanopaper expanded from 30 μm to 6 mm. (d) Cross-linked nanopaper immersed in water for 24 h. (e) Schematic representation of the shape stability improvement attained after glutaraldehyde treatment. Reproduced from reference [48] with permission from the Royal Society of Chemistry.

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