TiO2及鈣鈦礦製程對太陽能電池效率影響之研究

Influences of TiO2 and Perovskite Processing to the efficiency of solar cells

李奕明(Li, Yi-Ming)

指導教授 ： 王宏文

中原大學/理學院/化學研究所/碩士(2017年)

https://doi.org/10.6840/cycu201700647

摘要

摘要

本論文以傳統一步伐及兩步伐鈣鈦礦太陽能電池作為核心，探討鈣鈦礦晶體成形與做為電子傳導層的TiO2多孔層的研製。
以不同比例的配方與配置方式製作出可控制厚度低於200 nm的TiO2多孔層，再以升溫速度的控制解決TiO2多孔層與緻密層間介面接觸不良的問題，得到效率略優於市售TiO2多孔層漿料的自製TiO2多孔層漿料，並以SEM探討結構上的差異。
在一步伐鈣鈦礦太陽能電池製程上以不同的反溶劑比較鈣鈦礦晶體成形的差異，同時定量出MOF前驅溶液的使用量。在兩步伐鈣鈦礦太陽能電池製程上，於PbI2溶液中參雜微量MAI得到超平整薄膜，並從polar protic solvent和polar aprotic solvent的觀點探討溶解度對薄膜成形的影響，最高效率來到14.83 %。
並將此方法應用在設計雙層鈣鈦礦上，相較於文獻上分別製作兩層鈣鈦礦的手法，本篇所用的一次旋塗方式更能避免產生兩種鈣鈦礦中間的介面與溶解問題。
最後比較一步伐與兩步伐在鈣鈦礦長晶上的差異，推測出影響I-V曲線的關鍵因素。

關鍵字

鈣鈦礦 ； 太陽能電池池 ； 二氧化鈦 ； 多孔層

並列摘要

Abstract
The influence of TiO2 and Perovskite layer to the efficiency of solar cells is studied. The TiO2 layer is used for electron transfer material (ETM) and the Perovskite layer is where the charges separate.
The TiO2 mesoporous layer is made into less than 200 nm by using different ratio of additives and different processing condition. The interface problems are solved by modifing programs. A better TiO2 mesoporous TiO2 paste than the commercial past is achieved.
The processing in one step process, different anti-solvents are used to compare the formation of perovskite crystal, and the influence of MOF precursor is also studied. In two step process, a little amount of MAI in the ultra-planar PbI2 membrane helps the formation of good perovskite layers. The best performance of solar cell in this study is 14.83 %.
We designed double layers perovskite by doping MAI, then compare with other paper. Our new program may prevent more problem about the interface that between different perovskite and solve the problem of Solubility
Finally, I-V curves are compared for process in the formation of perovskite crystal.

並列關鍵字

perovskite ； solar cell ； titanium dioxide ； mesoporous

參考文獻

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