With the development of 3D printing technology, the application of liquid deposition modeling (LDM) 3D printing has become more and more widespread. Our study aims to use this printer type to fabricate TiO2 paste on an electrode for Dye Sensitized Solar Cell (DSSC). As the paste showed a shear-thinning behavior, the printing test was carried out to investigate the effects of printer’s parameters setting on the thin film characteristics. A number of successive layers was also considered to ensure the quality of printing. The critical thickness of TiO2 thin films and relevant sheet resistance in this system were achieved at 6.25 μm and 6.8E+6 Ω/square, respectively. Examples of DSSC directly formed upon the obtained thin films were presented, by which the energy conversion efficiency was received at approximately 4%. This approach opens the way to the direct deposition of nano-TiO2 paste by means of a low-cost LDM 3D printer. It includes the product development in different patterns and shapes of printed thin films.
Hansuebsai, Aran; Chareonsopa, Krairop; and Manseki, Kazuhiro
"Optimization of LDM 3D printing parameters for TiO2 thin film fabrication,"
International Journal of Thin Film Science and Technology: Vol. 9
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Available at: https://digitalcommons.aaru.edu.jo/ijtfst/vol9/iss3/6