Millicent Gikunda
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View article: Freestanding graphene heat engine analyzed using stochastic thermodynamics
Freestanding graphene heat engine analyzed using stochastic thermodynamics Open
We present an Ito-Langevin model for freestanding graphene connected to an electrical circuit. The graphene is treated as a Brownian particle in a double-well potential and is adjacent to a fixed electrode to form a variable capacitor. The…
View article: Array of Graphene Variable Capacitors on 100 mm Silicon Wafers for Vibration-Based Applications
Array of Graphene Variable Capacitors on 100 mm Silicon Wafers for Vibration-Based Applications Open
Highly flexible, electrically conductive freestanding graphene membranes hold great promise for vibration-based applications. This study focuses on their integration into mainstream semiconductor manufacturing methods. We designed a two-ma…
View article: Mechanisms of Spontaneous Curvature Inversion in Compressed Graphene Ripples for Energy Harvesting Applications via Molecular Dynamics Simulations
Mechanisms of Spontaneous Curvature Inversion in Compressed Graphene Ripples for Energy Harvesting Applications via Molecular Dynamics Simulations Open
Electrically conductive, highly flexible graphene membranes hold great promise for harvesting energy from ambient vibrations. For this study, we built numerous three-dimensional graphene ripples, with each featuring a different amount of c…
View article: Efficient circuit design for low power energy harvesting
Efficient circuit design for low power energy harvesting Open
We present five circuit topologies for low power energy harvesting. The most efficient circuit uses a variable capacitor as the power source, a DC bias voltage to charge the variable capacitor, two transistors for rectification, and two st…