Two-dimensional chromium telluride-coated 3D-printed architectures for energy harvesting
Rapid development of industries, urbanization, and technological advancements have increased demand for sustainable and cost-effective alternative energy sources. In this work, a self-powered flexible 3D-printed triboelectric nanogenerator coated with 2D chromium telluride (Cr2Te3) (3D-TENG) is presented as an innovative energy harvesting approach from pressure and temperature. The optimized flexible 3D-printed hexagonal structures with coatings show varying specific yield strength and porosity. The 3D-TENGs achieved a maximum output voltage of ?39 V under periodic impacts of ~0.8 kPa and their performance further increased (?45 V) in the presence of varied temperatures. The outstanding results and flexibility of the 3D-TENG devices highlight their potential in self-powered energy harvesting from external heat, magnetic fields, and body weight. Density functional theory (DFT) calculations further explained the interaction between 2D Cr2Te3 and the polymer surface under external impact. Therefore, we believe that our findings illustrate the potential of integrating 2D materials with 3D-printed architectures to enhance the efficiency and adaptability of flexible, lightweight, low-cost, and eco-friendly TENG devices for industrial applications. 2025 The Royal Society of Chemistry.
Mondal, Ritam; Mathias, Royston; Bastos, Leonardo V.; Gowda, Chinmayee Chowde; Tiwari, Nishant; Singh, Himanshu; Woellner, Cristiano F.; Tiwary, Chandra Sekhar; Kumbhakar, Partha
All Open Access; Hybrid Gold Open Access
https://doi.org/10.1039/d4nr05005c https://www.scopus.com/pages/publications/105003732766?origin=resultslist
Mondal R., Department of Physics and Electronics, Christ University, Bangalore, 560029, India; Mathias R., Department of Physics and Electronics, Christ University, Bangalore, 560029, India; Bastos L.V., Physics Department, Federal University of Paran UFPR, PR, Curitiba, 81531-980, Brazil; Gowda C.C., School of Nano Science and Technology, Indian Institute of Technology, West Bengal 721302, Kharagpur, India; Tiwari N., Department of Metallurgical and Materials Engineering, Indian Institute of Technology, West Bengal, Kharagpur, 721302, India; Singh H., Department of Metallurgical and Materials Engineering, Indian Institute of Technology, West Bengal, Kharagpur, 721302, India; Woellner C.F., Physics Department, Federal University of Paran UFPR, PR, Curitiba, 81531-980, Brazil; Tiwary C.S., Department of Metallurgical and Materials Engineering, Indian Institute of Technology, West Bengal, Kharagpur, 721302, India; Kumbhakar P., Department of Physics and Electronics, Christ University, Bangalore, 560029, India