研究生: |
李佳柔 Chia-Jou Lee |
---|---|
論文名稱: |
整合次波長微結構之菲涅爾聚光元件於射出成形研究 Research on Fabrication of Fresnel Condenser Lens Integrated with Sub-Wavelength Micro Structures by Injection Molding |
指導教授: |
陳炤彰
Chao-Chang Chen |
口試委員: |
謝宏麟
Hung-Lin Hsieh 楊申語 Sen-Yen Yang |
學位類別: |
碩士 Master |
系所名稱: |
工程學院 - 機械工程系 Department of Mechanical Engineering |
論文出版年: | 2012 |
畢業學年度: | 100 |
語文別: | 中文 |
論文頁數: | 189 |
中文關鍵詞: | 射出成形 、次波長微結構 、太陽能電池 、菲涅爾聚光元件 |
外文關鍵詞: | Injection molding, Fresnel condenser lens, Sub-wavelength structure, Solar cell. |
相關次數: | 點閱:321 下載:43 |
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本研究以射出成形製作具有次波長微結構之菲涅爾聚光元件(Sub-Wavelength Fresnel Condenser Lens),並利用鋯基薄膜金屬玻璃(Zr-Metallic Glass Thin Film, MGTF)濺鍍於模板上增加製程脫模性。實驗設計探討固定模溫下,不同射出速度與保壓壓力對於微結構轉寫率、次波長微結構轉寫率以及殘留應力之影響及探討次波長菲涅爾聚光元件在穿透率與功能性量測III-V族和矽基太陽能發電效率的影響。實驗結果得知在高射速高保壓下,可得最佳Fresnel微結構轉寫率96.04%及低射速高保壓下,可得次波長微結構轉寫率84%。Zr-MGTF之次波長微結構模板表面形貌於多次射出180次後其模板保持完整,得知Zr-MGTF能提高模板強度及增加脫模性,達到模板重複性使用。光學檢測結果,最佳的次波長微結構轉寫率於波長300nm~700nm範圍內可提升相對穿透率4.59%。太陽能發電效率的量測上,分別量測III-V族和矽基太陽能電池,可得知最佳的次波長微結構轉寫率之菲涅爾聚光元件應用於III-V族太陽能電池上可以有效提升相對太陽能發電效率2.29%,證明次波長微結構可以達到抗反射效果,未來可應用於太陽能電池模組產業上。
This research is to develop a fabrication process of integrated with sub-wavelength structure on fresnel condenser lens (SWFCL) by injection molding process. The sub-wavelength structure made by porous anodic aluminum (PAA) template coated with Zr-MGTF (Zr-Metallic Glass Thin Film, Zr-MGTF). Experimental design is considered with injection velocity and packing pressure for evaluating the groove filling rate (GFR), sub-microstructure filling ratio (SFR) and residual stress. Results show that the GFR and SFR increase as 96.04% and 84% respectively with packing pressure 70MPa by injection molding. Moreover, the mold insert of PAA template can be intacted after 180 times injection molding process because the Zr-MGTF coated on mold insert can effectively assist in demolding. The SWFCL with sub-wavelength structure can increase as 4.59% transmittance in range of 300nm to 700nm wavelength as compared with that of non-structure fresnel condenser lens. Regarding to the efficiency of solar cells, the SWFCL can achieve relative by increasing 2.29% efficiency for applying on the III-V based solar cell. Future development can focus on extensive field test of solar cells module.
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