Black aluminum-coated Pt/Pb(Zr.sub.0.56./sub.Ti.sub.0.44./sub.)0.sub.3./sub./Pt thin film structures for pyroelectric energy harvesting from a light source

0518875 - FZÚ 2020 RIV US eng J - Článek v odborném periodiku
More Chevalier, Joris - Yudin, Petr - Cibert, C. - Bednyakov, Petr - Fitl, P. - Valenta, J. - Novotný, Michal - Savinov, Maxim - Poupon, Morgane - Zikmund, Tomáš - Poullain, G. - Lančok, Ján
Black aluminum-coated Pt/Pb(Zr_0.56Ti_0.44)0₃/Pt thin film structures for pyroelectric energy harvesting from a light source.
Journal of Applied Physics. Roč. 126, č. 21 (2019), s. 1-7, č. článku 214501. ISSN 0021-8979. E-ISSN 1089-7550
Grant CEP: GA MŠMT(CZ) EF16_019/0000760; GA MŠMT EF16_013/0001406; GA MŠMT(CZ) LO1409; GA ČR GA18-09347S; GA MŠMT(CZ) LM2015088
Grant ostatní: OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760; OP VVV - SAFMAT(XE) CZ.02.1.01/0.0/0.0/16_013/0001406; VAKUUM(CZ) Grant VAKUUM PRAHA
Institucionální podpora: RVO:68378271
Klíčová slova: PZT films * energy harvestor * ferroelectric materials * thin films * optical propertie * pyroelectricity
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 2.286, rok: 2019
Způsob publikování: Omezený přístup
https://doi.org/10.1063/1.5130538

A black aluminum (B-Al) film was deposited onto the surface of a stack structure of platinum/Pb(ZrxTi1 − x)O3/platinum (Pt/PZT/Pt) to convert light into a heat variation and the heat variation into a polarization change. A comparison was performed between B-Al/Pt/PZT/Pt and conventional Pt/PZT/Pt structures. An absorbance higher than 95% was measured for the B-Al layer over a large range of wavelengths varying from 350 nm to 1000 nm. The theoretical model shows that heat diffusion was extremely fast through the layers, and the sample holder played a key role in the variation and stabilization of the system temperature. A doubled variation of the polarization was observed when the light was applied onto the surface of the stack structure with stable B-Al on the top. This behavior was interpreted by the larger temperature variations induced under the highly absorptive B-Al layers, in good correlation with the theoretical model prediction based on the heat fluxes in the structures.
Trvalý link: http://hdl.handle.net/11104/0303897