Methods and systems for evaporation of liquid from droplet confined on hollow pillar

A method of evaporating a liquid, the method comprising:

• providing a liquid delivery laver thermally coupled to an electronic device, the liquid delivery laver configured to receive the liquid from a source;
• providing a continuous flow of the liquid to an evaporation layer comprising channeling the liquid through the liquid delivery laver toward the evaporation layer, the liquid delivery layer is positioned between the evaporation laver and the electronic device, the evaporation laver comprising hollow pillars, wherein each of the hollow pillars has an evaporation surface and a pore configured to channel the continuous flow of the liquid from the liquid delivery layer to the evaporation surface;
• maintaining a droplet on each of the hollow pillars, each evaporation surface configured to maintain the droplet on a respective one of the hollow pillars within a contact line, each evaporation surface having a wetting efficiency of at least 95%, the contact line having a length of less than 0.0314 mm;
• and
• evaporating the continuous flow of the liquid from a surface of the droplet maintained on each of the hollow pillars to remove heat from the electronic device.