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This book presents topical research in the field of light-emitting diodes and the systems, uses and efficiency of optoelectronics. Topics discussed include fabricating high efficiency organic light-emitting diodes for flat panel displays and solid-state lighting; reliability estimation from the junction to the packaging of LED; next-generation intelligent and green energy LED backlighting 3D display; inorganic-organic hybrid emitting material fabricated by solvothermal synthesis; and, photonic bandgap defect structure based on IV-VI semiconductors.

Urbanization is changing both the ecological and socio-cultural characteristics of landscape. Population growth and structural shifts in demography, combined with change in land use and water resources, could largely influence how our society interacts with the natural environment. In this book, the authors present current research from across the globe in the study of urbanization and the environment. Topics discussed include the interrelation of land use change, nature conservation and urbanization in the Hungarian hillside; the impact of urbanization on groundwater quality in India; the...