Hexadecane-containing sandwich structure based triboelectric nanogenerator with remarkable performance enhancement

Suppressing Thermal Negative Effect and Maintaining High-Temperature Steady Electrical Performance of Triboelectric Nanogenerators by Employing Phase Change Material

“…n -HD can absorb and store abundant thermal energy in the temperature with small variations during the phase-transition process, so that the temperature of the Tr-TENG device remains invariant, which could effectively suppress the negative effect of the temperature rise on the relative permittivity of the PVDF-HFP and maintain a stable electrical output. (ii) After phase transition, that is to say, at high temperature, although the relative permittivity of EFMs decreases with the increase in temperature, relevant studies have proved that the generated triboelectric charges in tribo-material surface can be transferred from the sheath PVDF-HFP into the liquid core n -HD (namely, the existence of liquid n -HD can enhance the charge capture and storage capacity of the whole triboelectric layer), − causing the increase in the surface charge density, thus maintaining the high-temperature steady electrical output, as seen in Figure S17b. − …”

Human body IoT systems based on the triboelectrification effect: energy harvesting, sensing, interfacing and communication

“…Additionally, triboelectric layers of TENGs are worn after working for thousands of cycles, which leads to an inferior output. 307,308 Therefore, synthesizing a novel triboelectric layer featured with…”

“…Additionally, triboelectric layers of TENGs are worn after working for thousands of cycles, which leads to an inferior output. 307,308 Therefore, synthesizing a novel triboelectric layer featured with corrosion resistance and wear resistance is essential for TENGs, especially implantable TENGs that demand long lifespan.…”

Ultrahigh Performance Triboelectric Nanogenerator Enabled by Charge Transmission in Interfacial Lubrication and Potential Decentralization Design

“…For output enhancement, efforts were dedicated to elevating the threshold of air breakdown to increase surface charge density [22], including atmosphere controlling [23][24][25], using thin dielectric layer with charge pumping method [26][27][28] and our latest reported charge space-accumulation (CSA) effect [29]. For device durability, noncontact mode [30][31][32], rolling friction [33,34], soft contact with fur [35,36], and liquid lubrication [37][38][39][40] strategies were developed. Among those strategies, liquid lubrication is the only one which reduces the material abrasion but does not sacrifice (or even increase) the electric output of the TENG device [37].…”

“…For device durability, noncontact mode [30][31][32], rolling friction [33,34], soft contact with fur [35,36], and liquid lubrication [37][38][39][40] strategies were developed. Among those strategies, liquid lubrication is the only one which reduces the material abrasion but does not sacrifice (or even increase) the electric output of the TENG device [37]. In the latest work, by introducing squalene to form interface lubrication, peak power density of the sliding mode TENG remarkably reached 3.45 W m -2 Hz -1 and retained 86% of its output after 500 k operation cycles [38].…”