Bøger af Zulkifli Ahmad

Polymers in Electronics: Optoelectronic Properties, Design, Fabrication, and Applications brings together the fundamentals and latest advances in polymeric materials for electronic device applications, supporting researchers, scientists and advanced students, and approaching the topic from a range of disciplines. The book begins by introducing polymeric materials, their dielectric, optical, and thermal properties, and the essential principles and techniques for polymers as applied to electronics. This is followed by detailed coverage of the key steps in the preparation of polymeric materials for opto-electronic devices, including fabrication methods, materials design, rheology, encapsulation, and conductive polymer mechanisms. The final part of the book focuses on the latest developments in advanced devices, covering the areas of photovoltaics, transistors, light-emitting diodes, and stretchable electronics. In addition, it explains mechanisms, design, fabrication techniques, and end applications. This is a highly valuable resource for researchers, advanced students, engineers and R&D professionals from a range of disciplines.

Crystal structure plays an important role in determining chemical and mechanical properties of polymers.Elucidating the crystal structure of polymers is extremely difficult particularly in obtaining a sizeable crystal for XRD analysis.This work prove the viability of computer modelling approach interfaced with simulated XRD diffraction. High-performance aromatic polymers based on the 4,4''-biphenylene, 1,3-phenylene,isophthaloyl bis(4,4''-biphenylene) and p-terphenyl units were synthesized and their crystal structures investigated. The polymers show extreme thermal stability and are insoluble in almost all organic solvents.Oligomer and polymer crystal structures were constructed using computational modelling and quantitatively compared with simulated diffraction via Rietveld Analysis. Molecular mechanics force-fields were optimised from conformational and crystal packing data determined from oligomeric analogues by X-ray single-crystal and powder diffraction methods.