(61a) Electrical Energy Generation Via Reversible Chemical Doping on Transition Metal Dichalcogenide Thin Films – a Wearable H2O Voltage Generator

Chemically modified Transitional Metal Dichalcogenide thin films enable unique power sources driven entirely by a chemical potential gradient. Electrical current (11.9 μA mg^−1) and potential (525 mV) are reversibly produced by localized small molecule doping under ambient conditions. Using a variety of liquid-film interactions, we show that the nano-confinement of liquid dopants (including H₂O) within this porous structure allows facile conversion of heat of adsorption to electricity. An inverse length-scaling of the maximum power as L^−1.03 that creates specific powers as large as 30.0 kW kg^−1 highlights the potential for microscale energy generation. We demonstrate that this Asymmetric Chemical Doping (ACD) electricity induction method can be scaled using a printing/patterning technique for novel electricity generators. This allows us to develop a conformable thin film voltage generator that can be grafted onto human skin in a facile manner.

References:

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