Geçiş Metal Oksit Katkılı PbCl2-TeO2 Camların Yapısal ve Optik İncelenmesi

Yıl 2017, Cilt: 17 Sayı: 1, 218 - 226, 24.04.2017

Miray Çelikbilek Ersundu

Öz

Bu çalışmada, iyi doğrusal olmayan optik özellikleri ve yüksek yarı iletkenlik potansiyelleri nedeniyle

opto-elektronik uygulamalarda kullanım için elverişli sistemler olan geçiş metal oksit (GMO) katkılı

tellürit camlar yapısal ve optik açıdan incelenmiştir. Yapılan deneysel çalışmalarda, PbCl2-TeO2 cam

sistemine katkılandırılan Sb2O3, WO3, MoO3, Bi2O3, ZnO geçiş metal oksitlerinin camların fiziksel ve

yapısal özelliklerine etkisi araştırılmış ve değişen GMO türü ile camların kızılötesi bölge optik geçirgenlik

özelliklerinde meydana gelen değişimler incelenmiştir. Bu amaçla, (2x)GMO–(25-x)PbCl2–(75-x)TeO2, x =

0 ve 10 mol% (GMO: Sb2O3, WO3, MoO3, Bi2O3, ZnO) sistemine ait camların yoğunluk, molar hacim,

oksijen molar hacim, oksijen paketlenme yoğunluğu, ortalama çapraz bağlanma yoğunluğu gibi fiziksel

parametreleri belirlenerek camların yapısal özellikleri ile ilişkilendirilmiştir. Geçiş metal oksit katkısının

PbCl2-TeO2 camların birim hacimdeki bağ sayısını arttırarak boşluk hacmini azalttığı ve yapıyı daha sıkı

paketlenebilir hale getirdiği belirlenmiştir. Ayrıca FTIR analizleri ile camların kızılötesi bölgedeki

geçirgenlik özellikleri incelenmiş ve GMO-PbCl2-TeO2 camların yüksek kızılötesi bölge geçirgenlik ve

yüksek kızılötesi bölge geçirgenlik aralığı değerleri gösterdiği tespit edilmiştir.

Anahtar Kelimeler

Geçiş metal oksit, PbCl2-TeO2, Yapısal özellikler, Kızılötesi geçirgenlik

Kaynakça

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