DataVXAdvanced MaterialsPaper
journal article·2024-03Open access

Revamping Triboelectric Output by Deep Trap Construction

Nannan Wang, Yizhe Liu, Yange Feng, Jing Yang, Yaze Wu, Boya Zhang, Yixuan Li, Bofan Li, Sheng Wang, Enyi Ye, Yong‐Wei Zhang, Xian Jun Loh, Feng Zhou, Zibiao Li, Daoai Wang

Advanced Materials· Volume 36· Issue 13
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Source abstract

Abstract

Abstract High output performance is critical for building triboelectric nanogenerators (TENGs) for future multifunctional applications. Unfortunately, the high triboelectric charge dissipation rate has a significant negative impact on its electrical output performance. Herein, a new tribolayer is designed through introducing self‐assembled molecules with large energy gaps on commercial PET fibric to form carrier deep traps, which improve charge retention while decreasing dissipation rates. The deep trap density of the PET increases by two orders of magnitude, resulting in an 86% reduction in the rate of charge dissipation and a significant increase in the charge density that can be accumulated on tribolayer during physical contact. The key explanation is that increasing the density of deep traps improves the dielectric's ability to store charges, making it more difficult for the triboelectric charges trapped by the tribolayer to escape from the deep traps, lowering the rate of charge dissipation. This TENG has a 1300% increase in output power density as a result of altering the deep trap density, demonstrating a significant improvement. This work describes a simple yet efficient method for building TENGs with ultra‐high electrical output and promotes their practical implementation in the sphere of the Internet of Things.
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Research context

Nanomaterials

OpenAlex topics: Advanced Sensor and Energy Harvesting Materials · Conducting polymers and applications · Organic Electronics and Photovoltaics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou 730000 China

Institute of Sustainability for Chemicals Energy, and Environment (ISCE2) Agency for Science Technology and Research (A*STAR) 1 Pesek Road, Jurong Island Singapore 627833 Republic of Singapore

Shandong Laboratory of Advanced Materials and Green Manufacturing at Yantai Yantai 265503 China

Institute of High‐Performance Computing (IHPC) Agency for Science Technology and Research (A*STAR) 1 Fusionopolis Way, #16‐16 Connexis Singapore 138632 Republic of Singapore

State Key Laboratory of Electrical Insulation and Power Equipment Xi'an Jiaotong University Xi'an 710049 China

Institute of Materials Research and Engineering (IMRE) Agency for Science Technology and Research (A*STAR) 2 Fusionopolis Way, Innovis #08‐03 Singapore 138634 Republic of Singapore

Department of Materials Science and Engineering National University of Singapore 9 Engineering Drive 1 Singapore 117576 Singapore

Qingdao Center of Resource Chemistry and New Materials Qingdao 266100 China

Funding

National Natural Science Foundation of China · Science and Engineering Research Council

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