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In this book, I have optimized the growth of n- and p-GaN films, and high quality InGaN/GaN multiple quantum wells (MQWs) on sapphire (0001) substrate by a low pressure metal-organic chemical vapour deposition and have fabricated high brightness InGaN/GaN MQW light-emitting diodes (LEDs) under optimum conditions. To improve quantum efficiency which is generally poor in the conventional rectangular-shaped QWs due to spatial indirect recombination induced by internal piezoelectric field, we proposed a possibility of quantum dot (QD) engineering with triangular-shaped band structure in the...

This topical book explores the global experiences of responding to climate change, with perspectives from Australia, China, the European Union, Japan, the Republic of Korea, the United States, as well as the International Energy Agency. The authors, internationally recognized specialists in the field, discuss the obstacles faced by policymakers, as well as exploring policies and recommendations for achieving goals set in responding to climate change. The work also uses the case of Korea in the initial stage of its policymaking, as an example for developing countries not bound by the...