Sakarin İlavesiyle Cam Altlıklar Üzerine CBD ile Büyütülen PbS Filmlerin Morfolojik, Yapısal ve Optik Özelliklerinin Modifikasyonu

Benzoik sülfimid olarak da bilinen sakarin yapay bir tatlandırıcıdır. Bu makalede, nanoboyutlu kurşun sülfür (PbS) ince filmler sakarin olarak bilinen katkı maddesi varlığında kimyasal banyo depolama (CBD) ile üretilmiştir. Sakkarin miktarının filmlerin morfolojik, optik ve yapısal özelliklerine etkisi araştırılmıştır. Katkı maddesi içeren kurşun sülfür (PbS) filmler sakarinin beş farklı konsantrasyonunda (%0 dan %5’e) hazırlanmıştır. Üretilen numuneler yüzey pürüzlülüğü metodu, taramalı elektron mikroskopisi (SEM), X-Işını kırınımı ve UVvis spektroskopisi ile karakterize edilmiştir. Sakarin varlığının PbS ince filmlerin optik ve yapısal özelliklerini oldukça etkilediği bulunmuştur. X-Işını kırınımı sonuçlarına göre, filmlerin kristal boyutu değerleri sakarin içeriğinin artmasıyla 12.88 nm'den 5.25 nm'ye düşmüştür. UV-vis ölçümleri artan sakarin konsantrasyonunun bir sonucu olarak hem filmlerin bant aralığının hem de geçirgenlik özelliklerinin arttığını göstermiştir. Ayrıca, yüzey pürüzlülüğü ölçümleri sakarin miktarının artmasıyla ortalama yüzey pürüzlülüğünün azaldığını göstermiştir. Sonuç olarak, büyütme çözeltisinde sakarin varlığının numunelerin temel fiziksel özelliklerini ayarlamada önemli bir görev üstlendiği tespit edilmiştir.

Modification of Morphological, Structural and Optical Properties of CBD-Based Growth of PbS Films on Glass Substrates by Addition of Saccharin

Saccharin which so-called as benzoic sulfimide is an artificial sweetener.In this paper, nanostructured lead sulfide (PbS) thin films were produced in thepresence of additive known as saccharin via chemical bath deposition (CBD). Effectof the saccharin content on the morphological, optical and structural properties ofthe films has been investigated. Lead sulfide (PbS) films that included additivewere prepared at five different concentrations of saccharin (from 0 to 5%). Thefabricated samples were characterized by surface roughness, scanning electronmicroscopy (SEM), X-Ray diffraction and UV-vis spectroscopy. It was found thatthe presence of saccharin highly affected the optical and structural properties ofPbS thin films. According to the X-Ray diffraction results, crystallite size values ofthe films decreased from 12.88 to 5.25 nm with increasing of saccharin content.UV-vis measurements showed that both the band gap and transmission propertiesof the films increased as a result of increasing saccharin concentration. Further,Surface roughness measurements exhibited that average surface roughness wasdiminished with increasing saccharin content. As a result, it has been found thatthe presence of saccharin in growth solution played a significant mission inadjusting the main physical properties of the samples.

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