Improved optical transparency of calcium-doped ZnO thin films
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Tarih
2019
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Natl Inst Optoelectronics
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
ZnO thin films with various Ca-doping contents were produced by spray pyrolysis. X-ray diffraction results showed that all samples had a hexagonal structure. Morphological analysis indicated that all films had granular topography. The best transparency was obtained for 2 at.% Ca-doped ZnO samples. Band gap of ZnO thin films was found to be 3.22 eV and didn'tchange with increasing of Ca-doping. Photoluminescence data indicated that all samples had four emission peaks. Electrical measurements revealed that Ca-doping resulted in a gradual improvement of carrier density and consequently a decrement of resistivity, which is important for application areas in opto-electronics.
Açıklama
Anahtar Kelimeler
Ca-doped ZnO, Thin films, Morphology, Transparency, Carrier concentration
Kaynak
Optoelectronics and Advanced Materials-Rapid Communications
WoS Q Değeri
Q4
Scopus Q Değeri
Cilt
13
Sayı
5-6
