Abstract: An energy generating device includes first material portions comprising a first material, wherein the first material is a piezoelectric material; second material portions comprising a second material, wherein the second material has a larger coefficient of thermal expansion than the first material; lower electrodes; and upper electrodes, wherein second material portions are spaced apart from one another, the first material portions are disposed in a space between the second material portions and in contact with the second material portion, and each of the lower electrodes and upper electrodes are disposed below and above, respectively, each of the first material portions.

Abstract: Provided are a triboelectric energy generator using a control of a dipole polarization direction and a method of fabricating the same. The present invention controls a direction of a charging property generated by friction through a control of a dipole polarization using a ferroelectric or piezoelectric property of a material, and by using this control, the present invention is related to a triboelectric energy generator in a disk type in which a frictional charging material is slidable on a thin film only using control of a dipole polarization without need of an additional patterning process and output power is improved.

Abstract: Disclosed is a fibrous triboelectric generator. The fibrous triboelectric includes a first textile; a first electrode layer that is formed on a surface of the first textile; a friction layer that is formed on a surface of the first electrode layer and is able to be electrically charged by friction; and a second electrode layer that is able to undergo friction with the friction layer.