Abstract
Triboelectric nanogenerator (TENG) utilizing tribovoltaic effect can directly produce direct current with high energy conversion efficiency, which expands their application in semiconductor devices and self-powered systems. This work comprehensively summarizes the recent developments in semiconductor-based direct current TENGs (SDC-TENGs), which hold significant promise for DC energy harvesting technologies and semiconductor systems. First, the tribovoltaic effect is elucidated, and SDC-TENGs are categorized into six types based on different triboelectric structures: metal−semiconductor (M−S), metal−insulator−semiconductor (M−I−S), semiconductor−semiconductor (S−S), semiconductor−insulator−semiconductor (S−I−S), liquid−semiconductor (L−S), and metal/semiconductor−liquid−semiconductor (M/S−L−S) contact devices. Subsequent sections detail the operational mechanisms, strengths, and limitations of each category. Additionally, this paper outlines the enhancement mechanisms of SDC-TENGs providing guidance and recommendations for performance improvement. The conclusion highlights potential application scenarios for various types of SDC-TENGs, outlining the prospective benefits and challenges. SDC-TENG technology is poised to drive revolutionary developments in semiconductor devices and self-powered systems.
Published Version
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