Figure 14
Porous paper device (a) In this device SCM was replaced by a standard whatman filter paper. Thickness of the filter paper was 0.45 mm. (b) Negligible current were recorded in dry state. The current values increased sharply when the device was exposed to a steam of water vapor. When doped with NaCl and exposed to water vapor, the current values were maximum. (c) Maximum voltage values were recorded when the device is exposed to water vapor and the voltage values are negligible in dry state. (d) Functional device was prepared to power Red LED (Movie S9, S10, Supplementary information).
