Substrate critical effect on the structural and H-2 Gas sensing characteristics of solution-processed Zn0.075Cu0.025O films
Yükleniyor...
Dosyalar
Tarih
2021
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
IOP Publishing
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
In this study, we report the synthesis of Zn0.075Cu0.025O films by chemical bath deposition to
determine the effect of substrate (glass slide or ZnO seed layer) on the structural and H2 gas sensing
properties of the produced films. The crystal phase, structural topography, surface morphology, and
functional groups of the as-synthesized films as well as H2 gas sensing properties were investigated.
Although both films have a hexagonal wurtzite structure, ZnO seed layer-based Zn0.075Cu0.025O film
is more crystalline than glass slide-based Zn0.075Cu0.025O films. ZnO seed layer-based Zn0.075Cu0.025O
films exhibited much more nanorod and fewer nanosphere forms compared to glass slide-based
Zn0.075Cu0.025O films. EDX analysis and Raman spectra of both samples confirmed the presence of
defects in Cu: ZnO samples. ZnO seed layer-based sensors showed higher response (140%) and lower
operating temperature (80 °C) compared to glass slide-based sensors(87% response and 140 °C
operating temperature). The most important thing to note here is that the fabricated sensors exhibited
a high response at room temperature. The responses at room temperature were found as 46% and
23% for the ZnO seed layer-based and glass slide-based sensors, respectively. Sensors operating at
room temperature are especially important for commercial applications.
Açıklama
Anahtar Kelimeler
Metal Oxides, Chemical Bath Deposition, H2 Gas Sensing, Resistive Sensor
Kaynak
Materials Research Express
WoS Q Değeri
Q4
Scopus Q Değeri
Cilt
8
Sayı
12
Künye
Sarf, F., Karaduman Er, I., Yakar, E., & Acar, S. (2021). Substrate critical effect on the structural and H2Gas sensing characteristics of solution-processed Zn0.075Cu0.025O films. Materials Research Express, 8(12) doi:10.1088/2053-1591/ac3f09
