TENG materials data.xlsx

Supplementary note 1: Classification Standards.The classification on the Web of Science using the keyword “triboelectric nanogenerator” retrieved a total of 1,408 research-based only research articles (excluding reviews, patents, and books), between 2011 and January 2020. The collected literature was utilized to create a database that counted and classified the materials, synthesis methods, and application scenarios employed in the field of triboelectric nanogenerator. The categorization of materials in the statistics was primarily derived from the main figure of the articles and the experimental methods described in the descriptions. The percentage represents the frequency of usage of each material in the database. The material sources are simply classified as commercial and synthetic, and the material modification methods are divided into physical and chemical, and other categories. The physical interfaces used for material applications were further classified into solid-solid, solid-liquid, and other subcategories (such as liquid-liquid and gas-liquid interfaces), providing readers from diverse backgrounds with easy reference and comprehensive coverage. Despite the diligent efforts put into documentation, the possibility of human error cannot be eliminated. While the classification may be affected by subjective interpretation, it does not impact the overall validity of the results.<br>