Open AccessCarbon-based sprayed electrodes for pyroelectric applications
Author(s) -
Cristina Chirilă,
Mihaela Botea,
A. Iuga,
Andrei Gabriel Tomulescu,
Luminita M. Balescu,
A.C. Gâlcă,
Georgia Andra Boni,
Lucia Leonat,
Ioana Pintilie,
L. Pintilie
Publication year - 2019
Publication title -
plos one
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.99
H-Index - 332
ISSN - 1932-6203
DOI - 10.1371/journal.pone.0221108
Subject(s) - pyroelectricity , materials science , electrode , ferroelectricity , capacitor , optoelectronics , layer (electronics) , ferroelectric capacitor , substrate (aquarium) , carbon fibers , fabrication , nanotechnology , composite material , voltage , dielectric , electrical engineering , chemistry , medicine , oceanography , alternative medicine , pathology , geology , composite number , engineering
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 SrRuO 3 (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/m 2 K for CBSE electrodes and 3.36·10 −4 C/m 2 K 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.