"Mobile commerce transactions continue to soar, driven largely by the ever-increasing adoption and use of smartphones and tablets. The use of this technology gives consumers the flexibility to shop whenever and wherever they want. This book addresses the role of industry, academia, scientists,...

Alkali metal Na is beneficial to the performance of CuInGaSSe thin film solar cells. This work studies the addition and optimization of a sputtering SiO 2 barrier layer on the SLG to optimize the Na content that diffuses into the absorber layer from the SLG. The resulting Se content and...