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標題: 提升光捕捉模組吸收效率於太陽能電池之模擬研究
Simulation Study of Enhancing Light Absorption in Solar Cell Modules by The Light Trapping Module
作者: 林冠宇
Lin, Kuan-Yu
關鍵字: light trapping module
solar cells
microlens array
出版社: 精密工程學系所
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摘要: 本研究將提出一種光捕捉模組來改變光在太陽能電池中的光路徑,進而提升太陽能電池對光的吸收效率。利用透明基板上之高填充率微透鏡將入射光匯聚成若干光束,再導入背面之光通道,光通道的設計是以具高反射特性之金屬鍍在同一透明基板上,並在光束焦點位置開光通道口,使光束得以穿過光通道並照射於太陽能電池上,太陽能電池所造成之反射光會因為金屬表面而再一次的反射回到太陽能電池上層薄膜上,進而增加太陽能電池的吸收效率,也能縮減太陽能電池中的薄膜厚度,獲得更好的轉換效率。本論文為配合實際製程設計之需求設定模擬之微透鏡折射率為1.43且直徑為356.77μm ,模擬後最佳參數為微透鏡高度70μm 、光通道大小25μm 、間距0.27mm,可得到模擬結果達到80%以上的吸收效率,證實本研究之可能性。
This study proposed a light trapping module by changing the light path in the solar cell and further to enhance the light absorption. The incident light can be collected to numerous of light beams by the hight filled factor microlens array on the glass substrate with the circle channels at the back. The channel is a circle hole opening in the metal film with high reflectance on the glass substrate. The light beam will pass through the channel after focused, and the opening is matched the light beam size by design. The reflected light from the solar cell reflects repeatedly to solar cell by the high reflectance metal. Thus, the solar cell absorption efficiency can be enhanced, and it can also reduce the film thickness in solar cells as well as obtains better efficiency. After simulation, the best result of the light trapping module are the channel diameter is 25μm, the distance between solar cell and light trapping module is 0.27 mm, and the height of hight filled factor microlens array is 70μm. And the results showed at least 80 % absorption by using this light trapping module, can be achieved.
其他識別: U0005-1507201113535100
Appears in Collections:精密工程研究所



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