Dye-sensitized solar cell (DSSC) which was first introduced by Gratzel and co-workers 29 years ago is very attractive as the next generation sustainable energy device owing to its unique features such as inexpensive, flexibility, eco-friendly, simplicity in fabrication, functional at both indoors and outdoors, and so on. The heart of DSSC is the electrolyte which contains a redox mediator (e.g., I⁻/I₃⁻). Conventional electrolyte used in DSSC is an organic liquid with the redox couple dissolved in it. Liquid electrolytes have high ionic conductivity but they suffer from leakage and electrochemical corrosion that affect the stability and consequently the cell performance. These have prompted researchers to employ polymer electrolytes particularly in gel form. Many gel polymer electrolytes (GPEs) have been developed but in this article, we pay special tribute to GPEs based on polyacrylonitrile (PAN) due to its high ambient conductivity, good mechanical integrity, and electrochemical stability with good performance.

中文翻译：

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用于染料敏化太阳能电池的聚丙烯腈基凝胶聚合物电解质：综述

染料敏化太阳能电池（DSSC）由Gratzel及其同事于29年前首次推出，由于它具有价格低廉，灵活，环保，制造简单，在室内和室外均可使用，等等。DSSC的心脏是包含氧化还原介体的电解质（例如，I ^- / I ₃ ^-）。DSSC中使用的常规电解质是一种有机溶液，其中溶解有氧化还原对。液体电解质具有高离子电导率，但它们会遭受泄漏和电化学腐蚀，从而影响稳定性并因此影响电池性能。这些促使研究人员特别是采用凝胶形式的聚合物电解质。已经开发了许多凝胶聚合物电解质（GPE），但在本文中，我们特别感谢基于聚丙烯腈（PAN）的GPE，因为它具有较高的环境电导率，良好的机械完整性以及具有良好性能的电化学稳定性。