本研究的主要目是將印刷式凝固態電解質應用在單一片式染料敏化太陽能電池結構上。相較於傳統的三明治結構電池，單一片式染料敏化太陽能電池的製作是將所有電極材料塗覆在一片FTO光電極上，可減少材料成本並易於大面積生產、達到卷軸式製程並有利於電池的串級。而本研究的主要概念是基於單一片式電池多孔性的對電極特性，有利於印刷式電解質的應用及電池的封裝。利用I-/I3-為氧化還原對做為電解質系統，因為其對黃金的腐蝕性，無法使用黃金作為對電極，因此，將使用碳薄膜作為對電極材料。首先對此單一片式結構中的對電極和絕緣層材料進行優化。實驗結果發現用印刷式電解質以刮刀塗佈法來製備碳膜層時，以雙層塗佈方式可以增加薄膜之緻密度、提升元件導電性，若使用ACN當作溶劑，於太陽光下所測得效率為6.66%。最後為了應用印刷式電解質於單一片式結構中，使用較低揮發性之3-甲氧基丙腈(MPN)製備含碘氧化還原對電解質，並添加聚氧化乙烯(PEO)與聚甲基丙烯酸甲酯(PMMA)當作膠化劑，高分子共混比例為7:3，使電解質中的黏度具有印刷特性。研究發現當使用此印刷式製程導入電解質於元件，可提升開路電壓及FF，效率可達6.49%。此外，若再添加10wt% 之TiO2奈米粒子，可大幅提升電流密度，光電轉換效能更可提升至6.79%，甚至高於ACN液態元件，為目前單一片式染敏膠態電池最高效能，最後經500小時之穩定性測試，發現可維持與初始元件相當之效率，顯示出此印刷式元件的實際應用性非常高。

In this study, a highly efficient carbon-based counter electrode quasi-solid state monolithic dye-sensitized solar cell (QS-M-DSSC) with good stability has been developed that offers the outlook for commercial applications. For introduction, monolithic DSSCs are triple layer structure, with an extra insulating layer compared with traditional sandwich type DSSCs. For all the layers are created on a single conductive glass. Our research is mainly focusing on the printing process to offer the possibility on large scale series connect procedure, therefore introducing a printable electrolyte that were already published in our present work[1] and by printing skill to create each electrode to simply the procedure.
The printable electrolyte containing I-/I3- redox couple with 9wt% PEO/PMMA (7:3) polymer blend in low volatility 3-methoxypropionitrile (MPN) solvent showed PCE of 6.49% with thickness of insulating layer 6.75μm and carbon counter electrode 35.28μm under standard 1 sun illumination (100mW/cm2), which was even higher than MPN liquid device 5.73%. This was mainly due to about 50 mV negative shift of conduction band of the printable cell that contribute the increased in the voltage. Furthermore, the presence of 10 wt.% TiO2 nano-particles in the printable electrolyte, an uptick in the efficiency of the QS-M-DSSC to 6.79%, leading to higher short-circuit current that was better than acetonitrile (ACN)-based electrolyte 6.66%. Finally, the printable devices exhibited stable long-term test at room temperature after 500hrs.

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