太陽能為目前最為受到重視之替代能源之一，目前在太陽能電池中主要可分為矽基板太陽能電池和薄膜型太陽電池，目前主要使用的仍以矽基板太陽能電池為主，本研究主要為改進目前切割矽基板之線鋸切削製程，發展一新型之線鋸切割製程，本研究主要利用電動力技術中之電泳沉積(Electrophoresis Deposition)技術來輔助線鋸切割，實現一電泳沉積輔助線鋸切割製程(Wire Sawing with Electrophoresis Deposition of Grits, WSEPD)，以達到減少漿料之使用量和控制鋼線上之漿料膜厚之厚度，以達到降低切口損失(Kerf Loss)之目的，且本研究也同時探討線鋸製程對於整體太陽能電池基板生產之永續製造(Sustainable Manufacturing)之概念，導入生命週期評估(Life-Cycle Assessment, LCA)之概念，評估分析線鋸製程中漿料使用量對環境之衝擊，根據實驗結果，WSEPD在切口損失上為145μm，相對漿料使用量上可減少85.7%之載液用量和40%之磨料之用量，並減低38.9%之二氧化碳排放量，本研究之相關成果可供日後於薄型化矽基板切割技術和永續製造之所需製程發展之參考。

Wire sawing process is an important process of the fabrication of silicon substrates for application of solar cells. Currently, two methods including free abrasive and fixed abrasive method have been popularly adopted in related industry. The free abrasive or slurry wire sawing (SWS) has low abrasive working efficiency. The fixed abrasive wire sawing or diamond wire sawing (DWS) has high cost. Though the solar cell is claimed as a green energy product, fabrication of solar cell currently depends on some processes that are not fit to sustainable manufacturing. This research is to develop a novel wire sawing with electrophoresis deposition of grits (WSEPD) that can attract and deposit abrasive grits on the wire and then to improve the wire sawing efficiency. Different parameters of electrophoresis deposition have been tested and discussed in such wire sawing process. Life cycle assessment (LCA) has also proceeded in this study, focusing on slurry consumption and the environmental impact. Results of experiments have verified the developed WSEPD that can reduce the slurry consumption and improve the wire sawing efficiency. The WSEPD can be applied on the multi-wire sawing for sustainable manufacturing process of silicon substrates in the near future.

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