Văduva Mirela, Burlănescu Teodora, Baibarac Mihaela
National Institute of Materials Physics, Atomistilor Street, No 405 A, 077125 Magurele, Romania.
Faculty of Physics, University of Bucharest, Atomistilor Street, No 405, 077125 Magurele, Romania.
Polymers (Basel). 2023 Dec 22;16(1):53. doi: 10.3390/polym16010053.
Recent progress concerning the development of counter electrode material (CE) from the dye-sensitized solar cells (DSSCs) and the electrode material (EM) within supercapacitors is reviewed. From composites based on carbon nanotubes (CNTs) and conducting polymers (CPs) to their biggest competitor, namely composites based on graphene or graphene derivate (GD) and CPs, there are many methods of synthesis that influence the morphology and the functionalization inside the composite, making them valuable candidates for EM both inside DSSCs and in supercapacitors devices. From the combination of CPs with carbon-based materials, such as CNT and graphene or GD, the perfect network is created, and so the charge transfer takes place faster and more easily. Inside composites, between the functional groups of the components, different functionalizations are formed, namely covalent or non-covalent, which further provide the so-called synergic effect. Inside CPs/CNTs, CNTs could play the role of template but could also be wrapped in a CP film due to π-π coupling enhancing the composite conductivity. Active in regenerating the redox couple I/I, the weakly bound electrons play a key role inside CPs/GD composites.
本文综述了染料敏化太阳能电池（DSSC）中对电极材料（CE）以及超级电容器中电极材料（EM）的最新研究进展。从基于碳纳米管（CNT）和导电聚合物（CP）的复合材料到其最大竞争对手，即基于石墨烯或石墨烯衍生物（GD）与CP的复合材料，有许多合成方法会影响复合材料内部的形态和功能化，使其成为DSSC和超级电容器中EM的有价值候选材料。通过CP与碳基材料（如CNT和石墨烯或GD）的结合，形成了完美的网络，电荷转移更快、更容易发生。在复合材料内部，各组分的官能团之间形成了不同的功能化，即共价或非共价功能化，这进一步提供了所谓的协同效应。在CP/CNT内部，CNT可以起到模板的作用，但也可能由于π-π耦合而被包裹在CP薄膜中，从而提高复合材料的导电性。弱束缚电子在CP/GD复合材料中对氧化还原对I/I的再生起关键作用。
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