Fabrication of TiO2 Nanoscale Thin Films and Its Structural Properties

Abstract

The photocatalytic properties of titanium dioxide with extraordinary stability have potential application in chemical industry. Titanium dioxide nanoparticles were synthesized by sol-gel method and used dip-coating method for the preparation of thin films on glass substrate. To study the structural and physical characteristics of the samples, the XRD, UV-VIS and an optical microscope were used. The results show that with increasing the annealing temperature and thickness, larger particle size obtained and energy gap is reduced. Thus, by controlling the annealing temperature and thickness can be achieved to the gap-controlled semiconductors.

Keywords

• Nanoscale thin film,TiO2,Semiconductor,Dip-Coating

Titanyum Dioksit Nano Ölçek İnce Filmlerin Üretimi ve Yapısal Özellikleri

Abstract

O lağanüstü kararlılıktaki titanyum dioksit fotokatalitik özellikleri nedeniyle kimya endüstrisinde potansiyel uygulamalara sahiptir. Titanyum dioksit nanopartiküller sol-jel yöntemi ile sentezlenmiş ve daldırmalı kaplama yöntemi ile cam yüzey üzerine ince film hazırlamak için kullanılmıştır. Örneklerin yapısal ve fiziksel özelliklerini karaterize etmek için XRD, UV-VIS ve optik mikroskop kullanılmıştır. Sonuçlar yakma sıcaklığı ve kalınlık arttıkça, partikül boyutunun arttığını ve enerji aralığının azaldığını göstermiştir. Enerji aralığı kontrollü yarı iletkenler, yakma sıcaklığını ve kalınlığı kontrol ederek üretilebilir

Keywords

• Nano ölçek ince film,TiO,yarı iletken,dip kaplama

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