Journal
CHEMSUSCHEM
Volume 8, Issue 14, Pages 2327-2344Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201403481
Keywords
energy conversion; energy harvesting; nanogenerators; nanostructures; triboelectric charging
Funding
- Global Frontier Research Center for Advanced Soft Electronics [2013M3A6A5073177]
- Basic Science Research Program through the National Research Foundation (NRF) of Korea - Ministry of Science, ICT AMP
- Future Planning [2009-0083540]
- National Research Foundation of Korea [2013M3A6A5073177] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Recently, smart systems have met with large success. At the origin of the internet of things, they are a key driving force for the development of wireless, sustainable, and independent autonomous smart systems. In this context, autonomy is critical, and despite all the progress that has been made in low-power electronics and batteries, energy harvesters are becoming increasingly important. Thus, harvesting mechanical energy is essential, as it is widespread and abundant in our daily life environment. Among harvesters, flexible triboelectric nanogenerators (TENGs) exhibit good performance, and they are easy to integrate, which makes them perfect candidates for many applications and, therefore, crucial to develop. In this review paper, we first introduce the fundamentals of TENGs, including their four basic operation modes. Then, we discuss the different improvement parameters. We review some progress made in terms of performance and integration that have been possible through the understanding of each operation mode and the development of innovative structures. Finally, we present the latest trends, structures, and materials in view of future improvements and applications.
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