Investigation of Rb substitution on the thermoelectric parameters of BSCO Ceramic Materials

Yıl 2019, Cilt: 2 Sayı: 2, 30 - 33, 26.12.2019

Bekir Özçelik Gizem Çetin Andres Sotelo Maria Madre

Öz

Bu çalışma, güvenilirlik, sürdürülebilirlik ve
temiz enerji gibi günümüzün ana temalarını adres gösterecektir. Bu amaç
için,  katı-hal tekniğiyle Bi₂Sr_2-xRb_xCo₂O_y
(x=0.0, 0.025, 0.050, 0.075, 0.100 ve 0.125) malzemeleri üretilmiştir. Özdirenç
grafiğinden, saf ve 0.025Rb örnekleri yarıiletken bir davranış (dρ/dt<0),
diğerlerinin ise metalik bir davranış (dρ/dt>0) sergilediği sonucuna
ulaşılmıştır. Tüm örneklerin, tüm sıcaklık aralığında iletim mekanizmasının deşikler
tarafından yönetildiğinin bir kanıtı olan Seebeck katsayılarının pozitif olduğu
saptanmıştır.  Maksimum güç faktör
değerleri, 650 ⁰C civarında 0.10Rb örneği için 0.19 Mw/K²
olarak bulunmuştur. 

Anahtar Kelimeler

Seebeck Coefficient, Resistivity, Thermoelectric, Power Factör

Destekleyen Kurum

Cukurova University,

Proje Numarası

FBA-2019-12034.

Kaynakça

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