CEHTMS 2020: 14. International Conference on Energy Harvesting Technologies, Materials and Systems aims to bring together leading academic scientists, researchers and research scholars to exchange and share their experiences and research results on all aspects of Energy Harvesting Technologies, Materials and Systems. It also provides a premier interdisciplinary platform for researchers, practitioners and educators to present and discuss the most recent innovations, trends, and concerns as well as practical challenges encountered and solutions adopted in the fields of Energy Harvesting Technologies, Materials and Systems. More