Ceramic Films of Pb4.95Ba0.05Ge3O11 by Printing Technique and Their Pyroelectric Characteristics

Takamatsu, Keiji; Kobayashi, Nobuo; Tsujimura, T.; Matsumoto, Kazutoshi; Takada, Kenshi; Ishiguro, Hiroshi

doi:10.7567/jjaps.24s3.175

Cited by 3 publications

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“…Moreover, conventional printing technologies can offer unique additional benefits for functional thin-film deposition, such as low-cost, low-temperature processing, high-throughput, the use of flexible substrates and patterning/shaping at the same time as deposition [36][37][38][39], fulfilling the ever-increasing demand for device flexibility and customization [10,40]. To date, there have been few examples of the use of printing technologies for preparing pyroelectric films [41][42][43][44]. Nonetheless, the fine control of filmforming microstructure, necessary to meet pyroelectric polarization requirements, could easily become a challenge because printing is performed by processing polycrystalline materials from solution [45][46][47][48].…”

Section: Introductionmentioning

confidence: 99%

Gravure Printing for PVDF Thin-Film Pyroelectric Device Manufacture

et al. 2022

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Pyroelectric energy harvesting is one of the more recent and promising solid-state approaches for directly converting time-dependent temperature fluctuations into electric energy. Conventional printing technologies can offer many advantages for the production of pyroelectric thin-film-based devices, such as low cost, low temperature, the use of flexible substrates and shaping at the same time as deposition. Nevertheless, some issues related to low printed thickness and film-forming microstructure control need to be addressed. In this exploratory study, the possibility of exploiting the highly attractive gravure printing process for the potential industrial manufacture of flexible polyvinylidene fluoride (PVDF) thin-film pyroelectric devices was investigated. By the use of corona pre-treatment of the printing substrate and low-temperature polar solvent evaporation, multilayer gravure-printed PVDF pyroelectric devices were successfully manufactured for the first time, achieving a maximum generated current of 0.1 nA at 2.5 K/s from a device with an active area of 1 cm2. Considering the very low thermal inertia and performance scaling by the area expected for pyroelectric thin-film-based devices, combined with the upscaling potential of roll-to-roll gravure printing, our results provide new opportunities for on-demand, low-cost pyroelectric device manufacture and their integration in hybrid harvesters.

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