A method for sintering nanoparticles in the roll-to-roll environment is presented. The method of electrical sintering is first demonstrated by applying a constant voltage between two electrodes in contact with a printed silver nanoparticle track. The electrical sintering method is extended to enable sintering between a roll at an alternating electric potential and a ground plate. An analytical study of the electrical properties of metal nanoparticle inks gives an upper limit for the sintering frequency, approximately 1 GHz, above which power is no longer effectively dissipated in the material. These results are shown to agree well with experimental measurements. A first demonstration of patterning by roll-to-roll electrical sintering using a simple laboratory setup is presented. Using a desktop gravure test printer as a roll-to-roll sintering stage is discussed.
|Number of pages||6|
|Publication status||Published - 2008|
|Event||1st International Conference on R2R Printed Electronics - Seoul, Korea, Republic of|
Duration: 30 Apr 2008 → 2 May 2008
|Conference||1st International Conference on R2R Printed Electronics|
|Country||Korea, Republic of|
|Period||30/04/08 → 2/05/08|
- printed electronics
- nanoparticle ink
- roll-to-roll printing
Allen, M., Alastalo, A., Aronniemi, M., Mattila, T., Sääskilahti, K., Suhonen, M., & Seppä, H. (2008). R2R Electrical Sintering of Nanoparticle Structures. 291-296. Paper presented at 1st International Conference on R2R Printed Electronics, Seoul, Korea, Republic of.