The simulation of structure and electric properties on Dye-Senstized Solar Cells

染料敏化太陽能電池結構與電性模擬

林育誠(Yu-Cheng Lin)

指導教授 ： 鄭西顯

國立清華大學/工學院/化學工程學系/碩士(2011年)

https://doi.org/10.6843/NTHU.2011.00198

摘要

本文主要探討太陽能電池之幾何結構對染料敏化太陽能電池(DSSCs)參數關係，進而預測太陽能電池之效率值。要瞭解DSSCs的工作機制就必須瞭解其內部各參數與電池的外部特性之間的關係。通過外部參數的測量,計算出電池內部參數的數值,然後利用數學物理方面的知識,設計數學模型,最後得到物理機理。本文中以有限元素分析軟體ANSYS 對染料敏化太陽能電池之幾何結構進行電阻分析。也結合等效電路圖，找出等效電路中未知參數和幾何結構的關係。分析染料敏化太陽能電池在不同幾何結構下，對I-V curve、最大功率點(PMAX)、太陽能電池發電率效值(η)之影響。
針對大基板的染料敏化太陽能電池結構， 找出此電池的各項參數值，模擬出大基板太陽能電池的I-V curve，並找出影響效率之主要關鍵，再針對此參數值的影響，改善電池形狀，使DSSCs具有較高的轉換效率，降低試驗設計的盲目性，縮短研發週期。

關鍵字

染料敏化 ； 太陽能電池 ； ANSYS ； DSSC

並列摘要

This report is focused on discussing the relationship between the geometric structure and its electrical parameters for Dye-Sensitized Solar Cells(DSSCs). With the electrical parameters the efficiency of the DSSC can be predicted. However, the efficiency of DSSC is dependent on many parameters, some of which are readily obtained while the others are not. The approach is based on the equivalent circuit to find unknown parameters through a predictive model built from measurable data, wherein the commercial software ANSYS is used to analysis the resistance. With the predictive model all necessary parameters of large geometric scale of DSSC can be predicted and then the I-V curve is simulated based on the equivalent circuit. From the I-V curve the efficiency is calculated. The predictive model can tell the engineer which parameters are the most significant to the improvement of the efficiency. This research will aid the engineer to concentrate on the high efficiency DSSC design and shorten the development cycle of new products.

參考文獻

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