2024 journal article
Thermal-stable and high-dielectric Ba(Cu W )O -based ceramic Powder/PMDS films for triboelectric nanogenerator
Ceramics International.
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Source: ORCID
Added: February 1, 2024
Triboelectric nanogenerator (TENG) has gained widespread applications due to their unique ability to convert various forms of mechanical energy, such as wind and tidal energy, into electrical power. However, a critical challenge lies in maintaining high efficiency and stability amid fluctuating environmental temperatures. From a materials perspective, it has been observed that the dielectric constant of the frictional triboelectric layer material is influenced by temperature variations, significantly impacting TENG performance. To address this, our study employed Ba(Cu0.5W0.5)O3 (BCW)-based ceramic powder to develop temperature-stable materials with a high dielectric constant. These materials were combined with PDMS to create a composite thin film for the TENG frictional triboelectric layer. This novel composite thin film-based TENG exhibited remarkable electrical properties, including an open-circuit voltage (VOC) of 127 V and a short-circuit current (ISC) of 3.16 μA, surpassing conventional PDMS thin film-based TENGs that achieved values of 22 V and 0.65 μA, respectively. From −10 °C to 180 °C, the relative change for VOC is 24.6 %, while for ISC is 28.3 %. Additionally, the BCW-based/PDMS TENG demonstrated the capability to simultaneously power 54 LEDs, showcasing its potential as a versatile self-powered device. Our study not only advanced TENG performance from a material standpoint but also mitigated its sensitivity to environmental temperature, thereby expanding its promising applications in diverse scenarios.