本論文提出以近紅外光燒結凹版轉印高黏度微米銀漿顆粒，使其構成的金屬網格表面粗糙度及導電性得以改善。燒結後近乎零孔隙率的金屬網格顯示本研究所開發之燒結方法具有實際效益。實驗結果顯示，經近紅外光燒結後，金屬網格表面粗糙度改善60.5%，銀比例提升18.5%；比起傳統烘箱燒結，此兩特性分別優化2.69%及1.37%。除此之外，能量色散X-射線光譜及拉曼光譜分析結果顯示此燒結方法有助於抑制非導電化合物形成化學鍵結，致使表面粗糙度及片電阻值分別改善90.9%及98.6%。近紅外光對燒結金屬網格改善表面粗糙度及增進導電性有實際效益，再加上其支援卷對卷的優點，更使得近紅外光燒結技術比起傳統烘箱燒結實際適合應用於連續式的有機發光二極體生產製程。

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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