有機高分子太陽能電池轉換效率提升之研究

The study to improve the conversion efficiency of organic solar cells

陳証价(Cheng-Chieh Chen)

指導教授 ： 莊賦祥

國立虎尾科技大學/電機資訊學院/光電與材料科技研究所/碩士(2010年)

摘要

本文的元件結構為Glass/ITO/PEDOT:PSS/PCB︰P3HT/LiF/Al，以C60之衍生物PCBM和P3HT共混於鄰-二氯苯溶劑(DCB)中加溫攪拌24小時，利用混合有機溶劑增加PCBM和P3HT接觸的界面，接著將調配好之溶劑，利用旋轉塗佈機均勻塗佈於PEDOT:PSS上，當作高分子太陽能電池之主動層。本論文主要以PEDOT:PSS不同加熱溫度、不同DCB揮發速率主動層、不同光學共振膜、不同光封存(Light Trapping)結構及向下轉換機制應用，以達到提升有機太陽能電池光電轉換效率。對PEDOT:PSS旋轉塗佈前加以100℃加熱，提高PEDOT:PSS導電度，效率由1.82%提升至2.49 %。在慢成長時利用不同DCB揮發率，達到最佳PCBM與P3HT的自組織排列，效率由1.45%提升至2.49%。在PEDOT:PSS與主動層間加入一層P3HT薄膜，藉以提高吸收率，效率由2.49%提升至2.69 %。在元件玻璃受光面上添加不同光封存結構，提高散射光達到增長主動層路徑，並提高元件吸收與降低反射率，效率由2.69%提升至3.02 %。最後嘗試自製(AgIn)xZn1-2xS螢光粉，藉其接收太陽能UV波段之刺激而增加主動層吸收波段之光譜，使太陽能電池之效率提昇。

關鍵字

有機太陽能電池 ； 慢成長 ； 光封存 ； AgInZnS ； 向下轉換

並列摘要

The derivative of C60, [6,6]-phenyl C61-butyric acid methyl ester( (PCBM), and 3-hexylthiophene (P3HT) were dissolved in o-Dichlorobenzene (DCB) solvent 24 hours, then spin-coated in Glass/ITO/PEDOT:PSS as active layer for polymer solar cells. The experimental parameters were studied carefully to obtain the optimum power conversion efficiency (PCE). The PEDOT: PSS be heated to 100℃ after spin-coating, the efficiency increase from 1.82% to 2.49%. When the slow dry in the use of a different DCB and nitrogen turnover has reached the optimum arrangement of PCBM and P3HT autonomy, the efficiency from 1.45% to 2.49%. Between the PEDOT: PSS and the active layer by adding a layer of P3HT film,as to enhance the absorption, efficiency increase from 2.49% to 2.69%. The glass surface add different light by light trapping structure arrived improve the scattered light that increase light path in active layer, and improve absorption and reduce the reflectance, efficiency increase from 2.69% to 3.02%. Finally try to manufacture (AgIn) xZn1-2xS phosphor to light the characteristics of excitation light allows solar electricity can also be absorbed into the powder through the AgInZnS fluorescent UV light.

並列關鍵字

Organic Solar Cells ； Slow dry ； AgInZnS ； light trapping ； Down-Conversion

參考文獻

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