High Efficiency Sintering Techniques for Large and Viscous Metal Nanoparticle Ink
碩士 === 國立清華大學 === 奈米工程與微系統研究所 === 105 === This work proposes a near-infrared (NIR) sintering method to improve the surface roughness and enhance the sheet resistance of a gravure-offset-printed metal mesh with viscous silver paste that contains large nanoparticles. Results indicate that the sinterin...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2017
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| Online Access: | http://ndltd.ncl.edu.tw/handle/85w5da |
| Summary: | 碩士 === 國立清華大學 === 奈米工程與微系統研究所 === 105 === This work proposes a near-infrared (NIR) sintering method to improve the surface roughness and enhance the sheet resistance of a gravure-offset-printed metal mesh with viscous silver paste that contains large nanoparticles. Results indicate that the sintering was thorough because the porosity in the metal mesh approached zero percent. Examination proved a 60.5% surface roughness improvement and a 18.5% increment of Ag content in the metal mesh after NIR sintering, indicating respectively 2.69% and 1.37% improvement compared with conventional oven operations. In addition, material analyses through both energy-dispersive and Raman spectroscopy explained the reduction of insulative elements and features with chemical bonds in the metal mesh, supporting the finding of overall respective improvements in surface roughness (90.9%) and sheet resistance (98.6%). The effective NIR sintering evaluated in the present work was proven to be not only capable of replacing discontinuous oven operations in roll-to-roll manufacturing but also efficient in enhancing the material characteristics under identical sintering conditions compared with conventional oven operations.
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