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Title: | 奈米碳材於高分子太陽能電池上之應用 Nanocarbon Based Polymer Solar Cells |
Authors: | Kun-Hua Tu 杜昆樺 |
Advisor: | 陳俊維(Chun-Wei Chen) |
Keyword: | 石墨烯,單壁奈米碳管,透明導電電極,太陽能電池,水溶液製程, graphene,graphene oxide,single walled carbon nanotube,transparent conducting electrode,polymer solar cell,solution process,roll-to-roll, |
Publication Year : | 2011 |
Degree: | 碩士 |
Abstract: | 有機高分子太陽能電池具有低成本、可撓曲且能大面積製造的優勢,因而吸引大家廣泛的興趣。然而,目前高分子太陽能電池在應用上還有一些不利的因素,其陽極材料氧化銦錫透明電極不易撓曲且價格日益升高,電洞傳輸層PEDOT:PSS 有吸濕性且容易在紫外光下衰退,陰極的低功函數金屬則是在大氣中容易氧化不穩定。因此,此研究的目的是利用奈米碳材穩定的化學性質以及其良好的導電和可撓曲特性,藉以取代原本高分子太陽能電池中陰陽極和電洞傳輸層的材料,發展出以奈米碳材為基材的高分子太陽能電池。其一是以一維奈米碳管為透明導電電極,二維氧化態石墨烯為電洞傳輸層,兩者結合做為高分子太陽能電池的陽極平台,此元件表現出與一般元件接近的光電轉換效率,且具有可撓曲、可水溶液製程且大面積製造的優點。另外則是分別以n型及p型摻雜後的石墨烯做為太陽能電池中的陰陽極,發展出可以用roll-to-roll連續卷軸生產方式的元件,加上其半透明且可撓曲的優點,更有利於未來低成本製造和多元的應用。這兩種以奈米碳材維基材的高分子太陽能電池,成功結合了奈米碳材與高分子太陽能電池的優點,充分展現了其未來在生產及實際應用上的潛力。 Polymer solar cells have attracted a great interest for fabricating low-cost large-area mechanically flexible photovoltaic devices compared to the conventional inorganic counterparts. But the conventionally used ITO anode, PEDOT:PSS, and the low work function metal cathode all have its own shortcomings, hindering the devices from practical application. In this research, we would like to demonstrate new architectures of polymer solar cells based on allotropes of carbon nanomaterials, by utilizing p-type doped graphene or single walled carbon nanotube (SWNT) thin film as the anode, graphene oxide (GO) as the hole transport layer, n-type doping graphene as the cathode, and fullerene derivative PCBM/P3HT bulk heterojunctions as the photoactive layer. The photovoltaic device based on the solution processed SWNT/GO platform has exhibited good power conversion efficiency of 3.1% as compared to the conventional device (PCE=3.57%). And the new innovation of polymer solar cell based on all-graphene electrodes provides a potential route to develop a flexible, semitransparent photovoltaic device which can be fully integrated with the low-cost, roll-to-roll fabrication process. By overcoming the drawbacks of polymer solar cells, these two approaches have shown the potential of serving the long-term solutions for the future energy supply. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/9858 |
Fulltext Rights: | 同意授權(全球公開) |
Appears in Collections: | 材料科學與工程學系 |
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ntu-100-1.pdf | 6.4 MB | Adobe PDF | View/Open |
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