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6.16% Efficiency of Solid-State Fiber Dye-Sensitized Solar Cells Based on LiTFSI Electrolytes with Novel TEMPOL Derivatives
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2020-09-14 , DOI: 10.1021/acssuschemeng.0c05427 Jae Ho Kim 1 , Sung-Jun Koo 1 , Hyunil Cho 2 , Jin Woo Choi 1 , Seung Yoon Ryu 3 , Jae-Wook Kang 4 , Sung-Ho Jin 5 , Chuljin Ahn 2 , Myungkwan Song 1
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2020-09-14 , DOI: 10.1021/acssuschemeng.0c05427 Jae Ho Kim 1 , Sung-Jun Koo 1 , Hyunil Cho 2 , Jin Woo Choi 1 , Seung Yoon Ryu 3 , Jae-Wook Kang 4 , Sung-Ho Jin 5 , Chuljin Ahn 2 , Myungkwan Song 1
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Dye-sensitized solar cells (DSSCs) have attracted intense scientific interest due to their low cost, environmentally friendly operation, and relatively high efficiency. In particular, solid-state fiber dye-sensitized solar cells (SS-FDSSCs) have attracted significant attention for their potential applications in portable, flexible, and wearable electronics. However, the use of general DSSCs in these applications is limited by their highly leak-susceptible volatile liquid electrolytes. Therefore, the development of a highly efficient and stable solid-state electrolyte in SS-FDSSCs is a research challenge. Hence, the present letter describes the development of a highly conductive and stable structure on a hybrid-based LiTFSI electrolyte with 4-hydroxy-2,2,6,6-tetramethylpiperidin-1-oxyl (TEMPOL) that has high catalytic oxidant characteristics. After device optimization, the power conversion efficiency (PCE) with the TEMPOL p-toluenesulfonate (TpTS)-based SS-FDSSCs was 6.16%, which is comparable to that of the reference device (i.e., 4.21%). Moreover, the SS-FDSSCs devices with TpTS retained greater than 92% of their efficiency over 500 bending cycles and 10 washing cycles.
中文翻译：
基于含新型TEMPOL衍生物的LiTFSI电解质的固态纤维染料敏化太阳能电池的效率为6.16％
染料敏化太阳能电池（DSSC）由于其低成本，环保操作和相对较高的效率而引起了强烈的科学兴趣。尤其是，固态纤维染料敏化太阳能电池（SS-FDSSC）由于其在便携式，柔性和可穿戴电子产品中的潜在应用而备受关注。但是，在这些应用中使用普通的DSSC受到其高度易泄漏的挥发性液体电解质的限制。因此，在SS-FDSSC中开发高效且稳定的固态电解质是一项研究挑战。因此，本发明人描述了在具有4-羟基-2,2,6,6-四甲基哌啶-1-氧基（TEMPOL）的混合基LiTFSI电解质上高导电性和稳定结构的发展，所述TEMPOL具有高催化氧化剂的特性。经过设备优化后，基于TEMPOL对甲苯磺酸盐（TpTS）的SS-FDSSC的功率转换效率（PCE）为6.16％，与参考设备的功率转换效率相当（即4.21％）。而且，具有TpTS的SS-FDSSCs设备在500个弯曲周期和10个洗涤周期内保持了效率的92％以上。
更新日期：2020-10-12
中文翻译：
基于含新型TEMPOL衍生物的LiTFSI电解质的固态纤维染料敏化太阳能电池的效率为6.16％
染料敏化太阳能电池（DSSC）由于其低成本，环保操作和相对较高的效率而引起了强烈的科学兴趣。尤其是，固态纤维染料敏化太阳能电池（SS-FDSSC）由于其在便携式，柔性和可穿戴电子产品中的潜在应用而备受关注。但是，在这些应用中使用普通的DSSC受到其高度易泄漏的挥发性液体电解质的限制。因此，在SS-FDSSC中开发高效且稳定的固态电解质是一项研究挑战。因此，本发明人描述了在具有4-羟基-2,2,6,6-四甲基哌啶-1-氧基（TEMPOL）的混合基LiTFSI电解质上高导电性和稳定结构的发展，所述TEMPOL具有高催化氧化剂的特性。经过设备优化后，基于TEMPOL对甲苯磺酸盐（TpTS）的SS-FDSSC的功率转换效率（PCE）为6.16％，与参考设备的功率转换效率相当（即4.21％）。而且，具有TpTS的SS-FDSSCs设备在500个弯曲周期和10个洗涤周期内保持了效率的92％以上。
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