Preparation of Metal-Thin Film-Metal Device Structure for Pyroelectric Heat Sensor Measurement

Yıl 2023, Cilt: 2 Sayı: 1, 29 - 35, 21.05.2023

Rıfat Çapan Zikriye Özbek

Öz

In this study, the pyroelectric properties of organic Langmuir-Blodgett (LB) thin film material produced
at the nanometer scale were investigated. LB thin films obtained by transferring organic molecules floating on the water
surface to the solid surface were produced in an unsymmetrical structure. Steric acid and eicosylamine molecules were
selected to fabricate unsymmetrical LB film structure. This structure was used to investigate the pyroelectric and
electrical (C-f and C-tan δ) measurements. The pyroelectric figure of merit (FOM) was determined using pyroelectric
constant, the dielectric constant value and dielectric loss. The value of FOM for the stearic acid/eicosylamine LB film
was determined as 0.530 Cm-2K-1
.

Anahtar Kelimeler

Pyroelectric effect, Langmuir-Blodgett thin film, electrical measurements, stearic acid, eicosylamine

Pyroelektrik Isı Sensörü Ölçümü İçin Metal-İnce Film-Metal Cihaz Yapısının Hazırlanması

Öz

Bu çalışmada, nanometre ölçeğinde üretilen organik Langmuir-Blodgett (LB) ince film malzemesinin piroelektrik
özellikleri incelenmiştir. Su yüzeyinde yüzen organik moleküllerin katı yüzeye aktarılmasıyla elde edilen LB ince
filmler simetrik olmayan bir yapıda üretilmiştir. Simetrik olmayan LB film yapısını imal etmek için sterik asit ve
eikosilamin molekülleri seçildi. Bu yapı, piroelektrik ve elektriksel (C-f ve C-tan δ) ölçümlerini araştırmak için
kullanıldı. Piroelektrik figüre of merit (FOM) değeri piroelektrik sabiti, dielektrik sabiti değeri ve dielektrik kaybı
kullanılarak hesaplandı. Sterik asit/eikosilamin LB filmi için FOM değeri 0.530 Cm-2K-1 olarak elde edilmiştir.
.

Anahtar Kelimeler

Piroelektrik etki, Langmuir-Blodgett ince filmi, elektriksel ölçümler, sterik asit, eikosilamin

Kaynakça

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