Metal- Free Synthetic Organic Dyes is a comprehensive guide to the synthetic, organic dyes that are classified by their chemical structure. As synthetic dyes are playing an increasingly important role in modern life, with applications in both industry and scientific research, this book provides insights on the many research attempts that have been made to explore new photosensitizers in the development of dye sensitized solar cells (DSCs). These novel photosensitizers have incorporated, within their structure, different organic groups, such as coumarins, cyanines, hemicyanines, indolines, triphenylamines, bis(dimethylfluorenyl) aminophenyls, phenothiazines, tetrahydroquinolines, carbazoles, polyenes, fluorenes, and many others. This comprehensive resource contains color figures and schemes for each dye discussed, and is an invaluable resource for organic, inorganic and analytical chemists working in academia and industry. - Features a discussion of the synthesis of the new, high-value synthetic dyes and pigments and their applications and performance - Includes coverage of new photosensitizers and their role in the development of dye sensitized solar cells (DSCs) - Covers synthesis of the functional dyes that are ideal for applications in the dye and pigment industry, textiles, color science, solar energy materials and solar cells, biomedical sensors, advanced materials, structure and synthesis of materials, and more
This book offers a new and surprising perspective on the evolution of cities across the Roman Empire in late antiquity and the early Middle Ages (third to ninth centuries AD). It suggests that the tenacious persistence of leading cities across most of the Roman world is due, far more than previously thought, to the persistent inclination of kings, emperors, caliphs, bishops, and their leading subordinates to manifest the glory of their offices on an urban stage, before crowds of city dwellers. Long after the dissolution of the Roman Empire in the fifth century, these communal leaders continued to maintain and embellish monumental architectural corridors established in late antiquity, the narrow but grandiose urban itineraries, essentially processional ways, in which their parades and solemn public appearances consistently unfolded. Hendrik W. Dey's approach selectively integrates urban topography with the actors who unceasingly strove to animate it for many centuries.
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