Nano-porous thin film, methods of fabricating thereof and triboelectric generator using the same

A method of fabricating of a nano-porous thin film comprising:

• preparing a first compound block and a second compound block comprising a functional group;
• mixing the first compound block and the second compound block to form a self-assembled spherical micelle in which the first compound block constitutes a core of the spherical micelle and the second compound block constitutes a shell of the spherical micelle;
• forming a supramolecular structure having a skeleton formed by a residual second compound block, by removing the first compound block from the spherical micelle by applying an etching solvent to the spherical micelle;
• and
• binding metal ions to pores formed in the supramolecular structure and the functional group, selectively.

A triboelectric generator comprising:

• a first electrode;
• a second electrode is spaced apart from the first electrode and has a polarity which is different from a polarity of the first electrode;
• and
• a nano-porous thin film between the first electrode and the second electrode,
• wherein the nano-porous thin film comprising a supramolecular structure having a skeleton,
• wherein a first compound block and a second compound block including a functional group is self-assembled to form a spherical micelle, the first compound block constitutes a core of the spherical micelle, and the second compound block constitutes a shell of the spherical micelle,
• wherein the first compound block is removed from the spherical micelle while the second compound is remaining so that the remaining second compound provide the skeleton of the supramolecular structure,
• wherein the supramolecular structure comprises pores formed therein, and metal ions selectively bonded to the functional group.

A hybrid power supply system comprising:

• a triboelectric generator comprising:
• a first electrode;
• a second electrode is spaced apart from the first electrode and has a polarity which is different from a polarity of the first electrode;
• and
• a nano-porous thin film between the first electrode and the second electrode,
• wherein the nano-porous thin film comprising a supramolecular structure having a skeleton,
• wherein a first compound block and a second compound block including a functional group is self-assembled to form a spherical micelle, the first compound block constitutes a core of the spherical micelle, and the second compound block constitutes a shell of the spherical micelle,
• wherein the first compound block is removed from the spherical micelle while the second compound is remaining so that the remaining second compound provide the skeleton of the supramolecular structure,
• wherein the supramolecular structure comprises pores formed therein, and metal ions selectively bonded to the functional group;
• a rechargeable energy storage unit coupled to the triboelectric generator;
• and
• a power management module receiving an input current from the triboelectric generator and delivering an output current corresponding to the input current to the rechargeable energy storage so that the rechargeable energy storage is refilled.