Achieving High Power Density in Paper-based Piezoelectric Nanogenerators through Dual-Phase BCZT Doping Strategy

doi:10.15541/jim20250064

Abstract

Abstract: The development of high performance, flexible piezoelectric nanogenerators (PENGs) is critical for advancing self-powered sensing and microelectronic applications. In this study, a hydrogen-bond replacement strategy was employed to fabricate a multi-layer PENG based on a cellulose/PVDF blend film matrix, incorporating multi-phase BCZT (0.1BaZr_0.2Ti_0.8O₃-0.9Ba_0.7Ca_0.3TiO₃) ceramic fillers. Structural characterization via SEM and TEM revealed that an intricate hydrogen-bond network facilitated the uniform dispersion of ceramic fillers within the composite film’s sublayers. In order to study the effect of filler distribution on piezoelectric performance, we produced and evaluated single and double layer composite films with varying BCZT configurations. The results demonstrated that double layer PENGs exhibited significantly enhanced electrical output compared to their single layer counterparts, with the D-L₃H₇ configuration achieving an Open Circuit Voltage (V_OC) of 23 V and Short Circuit Current (I_SC) of 8 μA. This enhancement is attributed to increased inter-layer interfaces, which effectively suppressed charge injection and migration, leading to improved charge density. Additionally, the presence of sharp tipped hexagonal tetragonal phase nanoparticles induced an electric field enhancement effect, further optimizing performance.

Key words: PENGs, cellulose, BCZT, hydrogen bond engineering strategy

CLC Number:

TM619

WANG Siting, SUN Zixiong, LIU Xinying, HAN Peiqiao, WANG Xiuli, ZHANG Sufeng. Achieving High Power Density in Paper-based Piezoelectric Nanogenerators through Dual-Phase BCZT Doping Strategy[J]. Journal of Inorganic Materials, DOI: 10.15541/jim20250064.

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