多立面倍半矽氧烷寡聚物在高分子太陽能元件之研究

The study of polyhedral oligomeric silsesquioxanes on polymer solar cells

鍾松秦(Song-Cin Jhong)

指導教授 ： 張淑美

國立臺北科技大學/工程學院/有機高分子研究所/碩士(2008年)

摘要

有機太陽能電池因具有成本低、重量輕、具可撓性及容易製造大面積元件等優勢，值得我們進一步去了解目前的技術發展。但因為共軛高分子（可當作electronic donor ）本身相對於無機物的載子遷移率低而導致效果不彰，所以必須藉由添加了可傳輸電子的材料（當作electronic accepter）來增加效能。我們藉由改變不同electronic donor衍生物（例如：MEH-PPV, MEH-PPV-POSS,以及MDMO-PPV, MDMO-PPV-POSS ）混掺不同比例的PCBM製作出混摻（體）異質接面高分子元件（BHJ），其元件結構為（ITO/ PEDOT:PSS/ PPVderivatives:PCBM/ Al）。我們藉由改變PPV與PPV末端基接有多立面倍半矽氧烷寡聚物（POSS）的變化作成元件來探究變化，因為末端基多接有POSS而會使得效率下降。再者，我們藉由單純的MEH-PPV混掺POSS製作出元件時，相對驗證了末端基接接有POSS對效率下降的影響做了很好的對比性。藉由使用原子力顯微鏡以檢驗探究表面型態對其效率的變化之影響、UV-vis吸收光譜儀、PL螢光放光光譜儀的量測探究能量光學變化，再用I-V光伏量測系統量測效率來驗證。

關鍵字

共軛高分子 ； 多立面倍半矽氧烷寡聚物 ； 異質接面高分子太陽能電池

並列摘要

There are a number of advantages of polymer Solar Cells, such as low-cost, flexible, large area production and easy to fabricate. The illumination of the polymer/fulleren system by visible light leads to electron transfer from a polymer chain to a fullerene molecule. In this article, the efficiencies of bulk-heterojunction polymer solar cells have been studied with the sandwich structure of two electrodes. An active polymer layer based on the mixture of donor （eg. PPV derivatives ） and acceptor （eg. PCBM） materials are known to be critically dependent on the morphology of the active layer. And then adding different ratios of POSS monomer to active layer, we want to known what role of POSS play in. At all of these, the study of polymer film morphology atomic force microscopy （AFM） detect will be the key issue to a better performance polymer solar cell. And then effects of UV-Vis and PL on the efficiencies of polymer solar cells were also investigated. We can find out that compared with coniugated polymer, coniugated polymer end caped POSS has low Isc. And then we use different ratios of POSS monomer to blend with conjugated polymer, we can know that POSS will affect Isc.

並列關鍵字

conjugated polymer ； POSS ； bulk-heterojunction polymer solar cells

參考文獻

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