Micro-scale to nano-scale generators for energy harvesting: Self powered piezoelectric, triboelectric and hybrid devices

Publication date: Available online 23 November 2018Source: Physics ReportsAuthor(s): Sundaram Chandrasekaran, Chris Bowen, James Roscow, Yan Zhang, Dinh Khoi Dang, Eui Jung Kim, R.D.K. Misra, Libo Deng, Jin Suk Chung, Seung Hyun HurAbstractThis comprehensive review focuses on recent advances in energy harvesting of micro-scale and nano-scale generators based on piezoelectric and triboelectric effects. The development of flexible and hybrid devices for a variety of energy harvesting applications are systematically reviewed. A fundamental understanding of the important parameters that determine the performance of piezoelectric, triboelectric and hybrid devices are summarized. Current research directions being explored and the emerging factors to improve harvester functionality and advance progress in achieving high performance and durable energy conversion are provided. Investigations with regard to integrating flexible matrices and optimizing the composition of the piezoelectric and triboelectric materials are examined to enhance device performance and improve cost-effectiveness for the commercial arena. Finally, future research trends, emerging device structures and novel materials in view of imminent developments and harvesting applications are presented.

Source: Physics Reports - November 24, 2018 Category: Physics Source Type: research