Pyridinium-clubbed dicationic ionic liquid electrolytes for efficient next-generation photo harvesting,New Journal of Chemistry

当前位置： X-MOL 学术 › New J. Chem. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Pyridinium-clubbed dicationic ionic liquid electrolytes for efficient next-generation photo harvesting
New Journal of Chemistry ( IF 2.7 ) Pub Date : 2018-03-19 00:00:00 , DOI: 10.1039/c8nj00330k
Abhishek Dhar _{1,

2,

3,

4,

5} , Nadavala Siva Kumar _{1,

6,

7,

8} , Mohammad Asif _{1,

6,

7,

8} , Rohit L. Vekariya _{9,

10,

11,

12,

13}

Affiliation

We have developed a new series of pyridinium based dicationic ionic liquids (DCILs) having excellent thermal stability and good ionic conductivity. The effectiveness of these DCIL based electrolytes in photovoltaic devices and the effect of different anions (e.g. iodine, bromide, and thiocyanate) versus the device performance are studied by cyclic voltammetry (CV), current–voltage (I–V) characteristics and electrochemical impedance spectroscopy (EIS). The electrolyte 2PrSCN based device C exhibited the highest photo conversion efficiency (PCE) of 5.23% under 1 sun (100 mW cm⁻²) illumination of light. We have also analyzed the influence of various anions in metal-free dye-sensitized TiO₂ and the DCIL interface using the EIS technique. Device C based on 2PrSCN shows excellent long-term stability, maintaining <95% of the initial efficiency after 500 h.

中文翻译：

吡啶鎓离子交换离子液体电解质，可实现高效的下一代照片采集

我们已经开发了一系列新的基于吡啶鎓的阳离子型离子液体（DCIL），它们具有出色的热稳定性和良好的离子电导率。在光伏器件中这些基于DCIL电解质和有效性不同阴离子的效应（例如碘，溴，和硫氰酸酯）与器件性能是通过循环伏安法（CV），电流-电压（研究我- V特性和电化学阻抗）光谱学（EIS）。基于电解质2PrSCN的装置C在1个太阳光（100mW cm ^-2）照射下表现出5.23％的最高光转换效率（PCE）。我们还分析了各种阴离子对无金属染料敏化的TiO _2的影响以及使用EIS技术的DCIL接口。基于2PrSCN的设备C表现出出色的长期稳定性，在500小时后仍保持<95％的初始效率。

更新日期：2018-03-19

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11