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The study focuses on the structural, morphological, optical, and electrical properties of porous PbS-silicon and Al2O3-silicon nanocomposites, highlighting their potential applications in photovoltaics. Additionally, it explores the enhancement of titanium dioxide nanotubes through the decoration with PbS and Ag nanoparticles, specifically for their effectiveness in photocatalysis, including the degradation of Escherichia coli bacteria and organic pollutants.

This book presents co-sputtered processes ways to produce chrome doped TiO2 thin films onto various substrates such as quartz, silicon and porous silicon. Emphasis is given on the link between the experimental preparation and physical characterization in terms of Cr content. Moreover, the structural, optical and optoelectronic investigations are emphasized throughout. The book explores the potencial applications of devices based on Cr doped TiO2 thin films as gas sensors and in photocatalysis and in the photovoltaic industry. Also, this book provides extensive leads into research literature, and each chapter contains details which aim to develop awareness of the subject and the methods used. The content presented here will be useful for graduate students as well as researchers in materials science, physics, chemistry and engineering