Enhancing Performance of Composite-Based Triboelectric Nanogenerators Through Laser Surface Patterning and Graphite Coating for Sustainable Energy Solutions
Narong Amorntep,
Apirat Siritaratiwat,
Chavis Srichan,
Saichon Sriphan,
Thalerngsak Wiangwiset,
Atthaporn Ariyarit,
Wisut Supasai,
Nuttapong Bootthanu,
Sorawit Narkglom,
Naratip Vittayakorn,
Chayada Surawanitkun
Affiliations
Narong Amorntep
Center of Multidisciplinary Innovation Network Talent (MINT Center), Faculty of Interdisciplinary Studies, Khon Kaen University, Nong Khai Campus, Nong Khai 43000, Thailand
Apirat Siritaratiwat
Faculty of Engineering, Department of Electrical Engineering, Khon Kaen University, Khon Kaen 40002, Thailand
Chavis Srichan
Faculty of Engineering, Department of Computer Engineering, Khon Kaen University, Khon Kaen 40002, Thailand
Saichon Sriphan
Faculty of Science, Energy and Environment, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, Thailand
Thalerngsak Wiangwiset
Center Maintenance Sector, National Telecom Public Company Limited, Khon Kaen 40000, Thailand
Atthaporn Ariyarit
Faculty of Science, Department of Electronics Technology, Ramkhamhaeng University, Bangkok 10240, Thailand
Wisut Supasai
Faculty of Science, Department of Chemistry, Ramkhamhaeng University, Bangkok 10240, Thailand
Nuttapong Bootthanu
Department of Smart Electronics and Electric Vehicles, Faculty of Technology, Udon Thani Rajabhat University, Udon Thani 41000, Thailand
Sorawit Narkglom
Faculty of Industrial Technology, Chitralada Technology Institute, Bangkok 10300, Thailand
Naratip Vittayakorn
Department of Chemistry, School of Science, King Mongkut’s Institute of Technology Ladkrabang, Bangkok 10520, Thailand
Chayada Surawanitkun
Center of Multidisciplinary Innovation Network Talent (MINT Center), Faculty of Interdisciplinary Studies, Khon Kaen University, Nong Khai Campus, Nong Khai 43000, Thailand
The performance of composite-based triboelectric nanogenerators (C–TENGs) was significantly enhanced through laser surface patterning and graphite coating. The laser etching process produced accurate and consistent patterns, increasing surface area and improving charge accumulation. SEM imagery confirmed the structural differences and enhanced surface properties of the laser-etched C–TENGs. Graphite fibers further augmented the contact surface area, enhancing charge accumulation and diffusion. Experimental results demonstrated that the optimized C–TENGs, especially those with line patterns and graphite coating, achieved a maximal 98.87 V open-circuit voltage (VOC) and a 0.10 µA/cm2 short-circuit current density (JSC) under a 20 N external force. Environmental tests revealed a slight decrease in performance with increased humidity, while long-term stability tests indicated consistent performance over three weeks. Practical application tests showed the potential of C–TENGs integrated into wearable devices, generating sufficient energy for low-power applications, thereby highlighting the promise of these devices for sustainable energy solutions.
