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http://hdl.handle.net/10397/88866
Title: | A flexible semitransparent dual-electrode hydrogel based triboelectric nanogenerator with tough interfacial bonding and high energy output | Authors: | Jing, X Li, H Mi, HY Feng, PY Tao, X Liu, Y Liu, C Shen, C |
Issue Date: | 7-May-2020 | Source: | Journal of materials chemistry C, 7 May 2020, v. 8, no. 17, p. 5752-5760 | Abstract: | Triboelectric Nanogenerators (TENGs), as a novel tool that is capable of harnessing ubiquitous mechanical energy, have gained tremendous attention in recent years. Developing flexible and transparent TENGs with high triboelectric output performance is a major challenge towards adaptable and invisible energy harvesters. Previously developed transparent TENGs are normally used in a single electrode working mode or have relatively low output. Herein, a flexible semitransparent dual-electrode hydrogel-based TENG (DH-TENG) with high output was developed. The DH-TENG contains a thermoplastic polyurethane (TPU) tribopositive layer and a polydimethylsiloxane (PDMS) tribonegative layer. Both materials are highly transparent. NaCl containing polyacrylamide (PAM) hydrogels were used as electrodes, and polyethylene terephthalate (PET) sheets were used to provide mechanical stiffness. A benzophenone (BP) grafting method was used to enhance the interfacial bonding between hydrophobic triboelectric materials and hydrophilic hydrogels, which realized a significant improvement in tear strength of over 12 times. The DH-TENG demonstrated a high instant voltage and current of 311.5 V and 32.4 µA respectively. A maximum power density of 2.7 W m-2was achieved on a 4.7 MO resistor. Furthermore, the DH-TENG showed a highly stable output under continuous running and demonstrated the capability to charge capacitors and power small electronics such as a timer, pedometer, and digital watch. | Publisher: | Royal Society of Chemistry | Journal: | Journal of materials chemistry C | ISSN: | 2050-7526 | EISSN: | 2050-7534 | DOI: | 10.1039/c9tc06937b | Rights: | This journal is © The Royal Society of Chemistry 2020 The following publication Jing, X., Li, H., Mi, H.-Y., Feng, P.-Y., Tao, X., Liu, Y., Liu, C., & Shen, C. (2020). A flexible semitransparent dual-electrode hydrogel based triboelectric nanogenerator with tough interfacial bonding and high energy output [10.1039/C9TC06937B]. Journal of Materials Chemistry C, 8(17), 5752-5760 is available at https://dx.doi.org/10.1039/c9tc06937b. |
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Jing_Flexible_Semitransparent_Dual-electrode.pdf | Pre-Published version | 2.98 MB | Adobe PDF | View/Open |
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