2013

La1.90Eu0.10Ru2O7 Sisteminin Sentezi ve Fotoluminesans Özelliklerinin İncelenmesi

A2B2O7 tipindeki La1.90Eu0.10Ru2O7 sistemi yüksek sıcaklık katı hal yöntemlerinden seramik metot ile sentezlendi. Malzemenin sentez sıcaklığının belirlenmesi ve termal davranışlarının incelenmesi amacıyla termogravimetridiferansiyel termal analiz (TG/DTA) sistemi kullanıldı ve belirlenen sıcaklıklarda kül/tüp fırınında reaksiyon gerçekleştirildi. Malzemenin kristal yapısı x-ışınları toz kırınım difraktometresiyle (XRD) kontrol edildi, yüzey morfolojisi ve elementel analizi taramalı elektron mikroskop (SEM) ile yapıldı. Fotoluminesans özelliklerolan ışıma ve uyarma dalga boyu ile ışıma süresi fotoluminesans spektrofotometre (PL) ile belirlendi.

Sythesis and Investigation Photoluminescence Properties Of La1.90Eu0.10Ru2O7 System

A2B2O7 type La1.90Eu0.10Ru2O7 system was synthesized via ceramic method which is one of the high temperature solid-state reaction methods. To determine the materials sintering temperatures and investigate thermal properties, thermogravimetric and differential thermal analysis (TG/DTA) system were used and the reaction was done in furnace/tube furnace. The crystal structure of material was checked by x-rays powder diffractometer (XRD) and the surface morphology and elemental analysis were carried out with a scanningelectron microscope (SEM). Photoluminescence properties, the decay time, excitation and emission wavelengths were defined with photoluminescence spectrophotometer (PL).

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