Natural Leaf Made Triboelectric Nanogenerator for Harvesting Environmental Mechanical Energy

Abstract

mechanical energy exists extensively in our daily life, such as vibration, wind, and waves. [3] However, most of this energy is wasted and long-neglected. For one thing, environmental mechanical energy is random in amplitude, low in frequently, widely distributed, unstable, and random. Therefore, the design of effective and environmental-friendly energy harvesters still has lots of technical and economic challenges. [4] Besides, IoT has made a great progress with the development of sensor, wireless communication, and micro/nanotechnology. [5] IoT enables collecting and processing data among the whole network, which consists of huge numbers of widely distributed sensors or smart devices. But how to supply adaptive and sustainable energy for nodes of IoT is a big task even though each node only needs a tiny power. According to the characteristic of wide distribution, harvesting environmental mechanical energy is an attractive approach to powering the nodes of IoT. [6]

Nature Driven Bio‐Piezoelectric/Triboelectric Nanogenerator as Next‐Generation Green Energy Harvester for Smart and Pollution Free Society

“…Wang and co-workers [64] achieved remarkable voltage value of ≈230 V and current (≈9.5 µA), respectively using natural leafs based bioinspired TNG under the optimization condition (Figure 19e (Figure 19g), then became constant. [160][161][162] Because of electrostatic shield effect, [163] direct scale-up processing is not appropriate for the single electrode mode natural Leaf-TNG.…”

“…[64] They have used natural leaves to design effective TNG and proposed a green energy harvesting approach toward development of pollution free modern society. [64] They have used natural leaves to design effective TNG and proposed a green energy harvesting approach toward development of pollution free modern society.…”

“…For recycling of e-waste, huge amount of money has already been invested. [63][64][65][66] These nature driven biomaterials based smart piezo/triboelectric devices can harvest green energy from our surroundings and human/animal body movements' activities and supply sufficient power to smart green electronics. The conventional e-waste processing techniques are not environment friendly.…”

“…a-i) Reproduced with permission [64]. b) The real images of Hosta leaf and Leaf-TNG which are directly accumulated with Hosta leaf and PMMA.…”

A Flexible, Recyclable, and High‐Performance Pullulan‐Based Triboelectric Nanogenerator (TENG)

“…[17][18][19][20][21] However, there are several limitations on biomedical and biowearable applications for TENGs due to the synthetic polymers and nonbiocompatibility of the majority ongoing TENGs. Thus, the natural biomaterialsbased TENGs [22] have immensely attracted the researcher's attentions with the merits of biocompatibility, low cost, and plentiful raw materials. [23][24][25] Wang et al [24] reported a biodegradable and flexible chitosanbased TENG (chitosan was derived from chitin) and explored the feasibility of laser processing of constituent materials.…”