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. 2020 May 4;74:104910. doi: 10.1016/j.nanoen.2020.104910

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© 2020 The Author(s)

Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.

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Fig. 2 — Electric characteristics of FR-TENG and Mobile-UV. (a) (b). Open circuit voltage and short circuit current of FR-TENG with various rotational speeds. (c) (d). Open circuit voltage and short circuit current of different FR-TENG with various units. (e). The photos of FR-TENG structures for 4, 6, 12 units (scale bar, 80 mm). (f). Circuit schematic measuring electric characteristics of Mobile-UV. (g) (h). Load effective voltage, current and power of Mobile-UV with various rotational speeds.