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The rapid advancement of biomedical devices has sparked a growing need for power sources that
are not only efficient, but also sustainable, capable of functioning in diverse physiological
environments. It is in light of this demand that our study introduces a design, fabrication, and
characterization of novel bilayer polyelectrolyte films, specifically targeted at enabling
heterogeneous moisture-enabled energy generation in biomedical devices. The proposed bilayer
is composed of two distinct layers - the polycationic and polyanionic layers. These layers are
meticulously constructed, one layer at a time, and are sandwiched between copper electrodes.
The underlying principle of operation lies in the diffusion of charges across the opposing layers
upon water adsorption. To evaluate the efficacy of the device, electrical characterization of the
bilayer polyelectrolyte films is conducted, revealing the efficiency of the device. SEM analysis
further demonstrates the diffusion of charges within the opposite layers. In order to
comprehensively assess the performance of the HMEG, various parameters are considered,
including the stacking layers of polyelectrolytes, the thickness of the bilayer polyelectrolyte
films, the device area, relative humidity, temperature, and electric resistance. The endurance of
HMEG devices is meticulously evaluated under mechanical deformations, serving as a testament
to their remarkable robustness for potential biomedical applications. This assessment showcases
the resilience and durability of these devices, indicating their suitability for demanding medical
settings. Moreover, the investigation into the reversibility of electricity generation in HMEG
sheds light on its reliability and repeatability, further bolstering the credibility of this energy
harvesting approach. The findings not only underscore the promising nature of HMEG
technology but also emphasize its potential for facilitating sustainable energy solutions in the
biomedical field. This study makes a significant contribution to the realm of biomedical energy
harvesting by introducing a pioneering approach that harnesses moisture-enabled energy
generation using bilayer polyelectrolyte films.