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Dergiler / Recep Tayyip Erdoğan Üniversitesi Fen ve Mühendislik Bilimleri Dergisi / 2026 / Cilt: 5 Sayı: 1

Influence of Thermal Annealing on the Band-Gap of TiO2 Thin Films Produced by the Sol-Gel Method

Murat Tomakin(RECEP TAYYIP ERDOGAN UNIVERSITY)0000-0003-1887-848X
İmran Kanmaz(RECEP TAYYIP ERDOGAN UNIVERSITY)0000-0001-8827-1590
Göksel Aytemiz(RECEP TAYYIP ERDOGAN UNIVERSITY)0000-0002-7006-5841
Melih Manır(RECEP TAYYIP ERDOGAN UNIVERSITY)0000-0001-5791-8937
Vagif Nevruzoğlu(RECEP TAYYIP ERDOGAN UNIVERSITY)0000-0002-8758-4760
Sayfa
49–56
Yayın Tarihi
2024-06-30
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⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

According to our findings, samples annealed at 300°C, 500°C, 700°C, and 900°C exhibited band-gap values of 3.42eV, 3.40eV, 3.38eV, and 3.29eV, respectively.

📌 3 Maddede Bu Makale

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Amaç & Hipotez:In our study, we employed the spin coating method to produce TiO2 thin films on quartz glass using a solution with a concentration of 0.5M.
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Temel Bulgular & Veri:After the coating process, the samples underwent heat treatment at 100°C in air ambient for drying.
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Sonuç & Katkı:According to our findings, samples annealed at 300°C, 500°C, 700°C, and 900°C exhibited band-gap values of 3.42eV, 3.40eV, 3.38eV, and 3.29eV, respectively.
🔬Tür:Araştırma Makalesi
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:TiO2 Thin film · sol-gel · band-gap

Özet

In our study, we employed the spin coating method to produce TiO2 thin films on quartz glass using a solution with a concentration of 0.5M. After the coating process, the samples underwent heat treatment at 100°C in air ambient for drying. Subsequently, annealing was carried out at four different temperatures, namely 300°C, 500°C, 700°C, and 900°C, for a duration of 60 minutes. The produced samples underwent comprehensive analyses, including Scanning Electron Microscopy (SEM), Energy Dispersion Spectroscopy (EDS), X-ray Diffraction (XRD), and optical measurements, to investigate their structural and optical properties. Optical measurements revealed that the highest average transmittance values were obtained for samples annealed at 300°C and 500°C, with percentages of 82.33% and 80.25%, respectively. Remarkably, the maximum transmittance of 99.58% was recorded for films annealed at 500°C. Additionally, band-gap calculations were performed using the Tauc method based on optical measurements of samples exposed to different annealing temperatures. According to our findings, samples annealed at 300°C, 500°C, 700°C, and 900°C exhibited band-gap values of 3.42eV, 3.40eV, 3.38eV, and 3.29eV, respectively.

Abstract

In our study, we used the spin coating method to produce TiO2 thin films on quartz glass using a solution with a concentration of 0.5M. After the coating process, the samples were dried in air at 100°C. Subsequently, annealing was carried out at four different temperatures, namely 300°C, 500°C, 700°C, and 900°C, for a duration of 60 minutes. Comprehensive analyzes including Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS), X-ray Diffraction (XRD) and optical measurements were carried out to investigate the structural and optical properties of the samples. Optical measurements showed that the highest average transmittance values were obtained for samples annealed at 300°C and 500°C, with percentages of 82.33% and 80.25%, respectively. Remarkably, the maximum transmittance of 99.58% was recorded for films annealed at 500°C. Additionally, band-gap calculations were performed using the Tauc method based on optical measurements of samples exposed to different annealing temperatures. According to our results, samples annealed at 300°C, 500°C, 700°C, and 900°C exhibited band-gap values of 3.42eV, 3.40eV, 3.38eV, and 3.29eV, respectively.

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Bu Makaleye Atıf Yap

Tomakin, M., Kanmaz, İ., Aytemiz, G., Manır, M., Nevruzoğlu, V. (2024). Influence of Thermal Annealing on the Band-Gap of TiO2 Thin Films Produced by the Sol-Gel Method. Recep Tayyip Erdoğan Üniversitesi Fen ve Mühendislik Bilimleri Dergisi, Cilt: 5 Sayı: 1, 49–56. https://doi.org/10.53501/rteufemud.1395013

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Kaynakça (20)

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