Investigation of laser μ-3D printed triboelectric nanogenerator for energy harvesting

Abstract

3D printing or Additive manufacturing has gained its popularity due to its high innovations, process improvement and design freedom to many industries, including aerospace, dental, medical, and automotive. Most of the 3D printing process used wire or powder as raw materials which restrict the further usage of current techniques. In the work, a thin film-based Laser μ-3D printing is deployed for the fabrication of triboelectric nanogenerator for harvesting waste vibration energy from surrounding. With advancement in technologies, Laser decal transfer can be deployed for transfer of thin film over substrates are possible making it substrate independent. In present work laser decal transfer was used for the transfer of ZnO over Indium Tin Oxide with PDMS as a sacrificial layer. Further FEP sheet deposited with copper was used as a tribo-pair with ZnO. ZnO single track was printed at different laser fluence varied form 3.7 - 5.20J/cm2 and at different pulse overlap (60%, 70%, 80%, 90%) with laser wavelength of 10.6 μm. TENG fabricated with μ- 3D printing and compare it with hydrothermal growth method to check its performance at same condition. This work also emphasizes on exploring the capacity of μ-3D printing of ZnO ceramics with CO2 laser for different pattern and structure.