Benzilamin İnce Filmleri İle Kovalent Bir Şekilde Modifiye Edilmiş Silisyum Yüzeyleri Üzerinde Sitrat-Kaplı Altın Nanopartiküllerin Üretimi ve Karakterizasyonu

Bu çalışmada, benzilamin ince filmleri ile kovalent bir şekilde modifiye edilmiş yüzeyler üzerinde sitrat-kaplı altın nanopartiküllerin üretimi amaçlanmıştır. Bu amaçla ilk olarak, p-tipi Si (100) elektrotlar aril diazonyum tuzlarının elektrokimyasal indirgenmesi (+N2-benzilamin) ile benzilamin tabakaları ile modifiye edilmiştir. Daha sonra, modifiye edilmiş elektrotlar altın nanopartikül içeren bir çözelti içine daldırılmıştır. Son olarak, Au nanopartiküller elektrostatik olarak pozitif yüklü benzilamin tabakaları ile birleştirilmiştir. Benzilamin filmlerin özellikleri voltametrik yöntemler kullanılarak incelenmiştir. Modifiye edilmiş p-tipi Si (100) yüzeylerinin bariyer özellikleri redoks probların varlığında (Fe(CN)63- ve Ru(NH3)63+) dönüşümlü voltametri kullanılarak çalışılmıştır. Ayrıca elde edilen sonuç filmlerin karakterizasyonu ve morfolojik analizi taramalı elektron mikroskopu (SEM) ile araştırılmıştır.

Synthesis and Characterization of Citrate-Capped Gold Nanoparticles on Covalently Modified Silicon Surfaces by Benzylamine Thin Films

In this study, we aimed to assembly of citrate-capped gold nanoparticles on benzylamine thin films that covalently modified surfaces. For this purpose, firstly, p-type Si (100) electrodes were modified with benzylamine layers by electrochemical reduction of aryl diazonium salts        (+N2-benzylamine). Then, the modified electrodes were submerged in a solution containing Au nanoparticles. Finally, Au nanoparticles were electrostatically assembled on positively charged benzylamine layers. The properties of the benzylamine films were investigated using voltammetric methods. The barrier properties of modified p-type Si (100) surfaces were studied by cyclic voltammetry in the presence of redox probes (Fe(CN)63- and Ru(NH3)63+). Also the final films generated for characterization and morphological analysis were examined by scanning electron microscopy (SEM). 

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Politeknik Dergisi-Cover
  • ISSN: 1302-0900
  • Yayın Aralığı: Yılda 4 Sayı
  • Başlangıç: 1998
  • Yayıncı: GAZİ ÜNİVERSİTESİ