Carbon-based sprayed electrodes for pyroelectric applications

C Chirila; M Botea; A Iuga; A G Tomulescu; L Balescu; A C Galca; A G Boni; L Leonat; I Pintilie; L Pintilie

doi:10.1371/journal.pone.0221108

Carbon-based sprayed electrodes for pyroelectric applications

PLoS One. 2019 Aug 15;14(8):e0221108. doi: 10.1371/journal.pone.0221108. eCollection 2019.

Authors

C Chirila¹, M Botea¹, A Iuga¹, A G Tomulescu¹, L Balescu¹, A C Galca¹, A G Boni¹, L Leonat¹, I Pintilie¹, L Pintilie¹

Affiliation

¹ National Institute of Materials Physics, Magurele-Ilfov Romania.

Abstract

A carbon-based layer was deposited by spraying on top of a ferroelectric layer grown by sol-gel on Si (001) substrate and its properties as electrode and absorber for pyroelectric detection were tested. It was found that the electric properties of the ferroelectric capacitor with top carbon-based sprayed electrode (CBSE) are comparable with those of the capacitors with standard top SrRuO3 (SRO)/Au electrode. Pyroelectric measurements show that the pyroelectric signal recorded on ferroelectric capacitors with top CBSE electrode is 2.5 times greater than for top SRO/Au electrode for low frequency range. The value of the pyroelectric coefficient was estimated to 9.73·10-4 C/m2K for CBSE electrodes and 3.36·10-4 C/m2K for SRO/Au respectively. The fabrication process of CBSE is of low cost, easy to implement and with high throughput making it attractive for manufacturing various devices like pyroelectric detector, thermal imaging, solar cells, etc.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Carbon / chemistry*
Electrodes

Substances

Carbon

Grants and funding

The authors acknowledge the financial support of the Romanian Ministry of Education – Executive Unit for Funding High Education, Research, Development and Innovation (MEN-UEFISCDI) through the Core Program PN18-110101, the IFA-CEA (Contract No. C503/2016).