臺灣博碩士論文加值系統

本研究分為兩大部份，第一部份為矽晶太陽能電池製程之改善，針對不同熱擴散溫度及時間與銀膠網印燒結的溫度及時間變化，將太陽能電池製程做成最佳化之參數。第二部份是在矽晶太陽能電池表面加上一層含有聚光結構的透明薄膜，薄膜製作之材料採用具有自組裝特性的聚苯乙烯奈米球以及含有規則陣列的結構等等。奈米球是經由旋轉塗佈機旋塗在玻璃基板上，以軟微影技術使用具有透光性的高分子材質PDMS翻製不同尺寸與結構的透明薄膜，最後將此薄膜黏貼在電池表面上，並藉由光進入含有微奈米結構的薄膜，使光反射下降進而提升短路電流(Isc)，實驗測試將140nm、430nm、820nm和2um的奈米球及規則陣列的結構，經由PDMS翻製成透明薄膜後當作聚光層，黏貼於電池表面。
最終由量測分析結果得知開路電壓(Voc)維持在0.53 V，填充係數(FF) 維持在0.70~0.71，短路電流密度(Jsc)最高可由22.28mA/cm2增加到24.25mA/cm2，因此轉換效率亦從8.3%增加至9.1%。

The study has two primary parts. First part is to improvement process of silicon solar cell. Those focus on change different temperature and time for thermal diffusion and sinter silver glue. It made the process of silicon solar cell optimization. The second part is to add the transparent film that it has nanostructure on the surface of silicon solar cells. The transparent film used polystyrene nanospheres that it has self-assembly properties and Hexagonal closed-packed, as well as regulation array structure. The Polystyrene nanospheres used spin coater to spin on a glass substrate. It used a PDMS that is a light-transparent polymer material to fabricate different size and structure of the transparent film by soft lithography. Finally, the silicon solar cell to stuck transparent film that it made light get into the nanostructure film, so that decrease the light-reflection and enhance the short-circuit current (Isc). This study used 140nm, 430nm, 820nm and 2um nanospheres and regulation array structure to make the transparent film by imprint PDMS, and used it stuck on the surface of the solar cell.
The result of measurement shows that the open circuit voltage (Voc) to maintain in 0.53 V, the fill factor (FF) was maintained at 0.70 to 0.71, the short-circuit current density (Jsc) increased from 22.28mA/cm2 to 24.25mA/cm2, therefore conversion efficiency increased from 8.3% to 9.1%.

考試合格簽名頁
摘要
Abstract
致謝
目錄....................................................................................................I
表目錄..............................................................................................V
圖目錄.............................................................................................VI
第一章 太陽能電池序論.................................................................1
1.1前言與研究背景.....................................................................1
1.2太陽能電池原理.....................................................................2
1.3太陽能電池參數介紹與損耗機制.........................................4
1.4太陽能電池基本結構.............................................................8
第二章 軟微影技術應用於微奈米材料.......................................10
2.1奈米材料介紹.......................................................................10
2.2奈米球自組裝機制…...........................................................11
2.3奈米球自組裝技術...............................................................11
2.4軟微影技術...........................................................................13
第三章 實驗製程與量測分析.......................................................15
3.1 太陽能電池製作流程與性能分析......................................15
3.1.1實驗材料及設備............................................................15
3.1.2實驗製程介紹................................................................18
3.1.3太陽能電池元件量測....................................................20
3.2微奈米結構製作與分析.......................................................22
3.2.1實驗材料........................................................................22
3.2.2利用軟微影翻製奈米球狀結構薄膜............................23
3.2.3奈米球應用於電池元件製作流程................................23
3.3不同形狀結構製作與分析...................................................25
3.3.1實驗材料........................................................................25
3.3.2利用軟微影翻製不同形狀結構薄膜............................25
3.4微奈米結構量測...................................................................26
第四章 實驗結果與討論...............................................................27
4.1 太陽能電池製程參數研究.................................................27
4.1.1不同金屬電極比較........................................................27
4.1.2不同熱擴散溫度與時間比較……………….............27
4.2 奈米球各種製程參數研究.................................................28
4.2.1濃度1%w/w之奈米球...................................................28
4.2.2濃度10%w/w之奈米球.................................................30
4.3 PDMS翻製微奈米結構薄膜之表面形貌...........................31
4.3.1 奈米球凹結構薄膜……..............................................31
4.3.2 奈米球凸結構薄膜……..............................................33
4.3.3 不同形狀結構薄膜……..............................................34
4.4微奈米結構薄膜應用於電池表面分析...............................34
4.5全反射、光電轉換效率、外部量子效率分析...................35
4.5.1全反射……....................................................................35
4.5.2外部量子效率……........................................................36
4.5.3光電轉換效率……........................................................36
4.5.4含有微奈米結構電池元件總討論……........................37

第五章 結論...................................................................................39
參考文獻.........................................................................................41

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