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首页> 外文期刊>Polymers for advanced technologies >Synthesis and characterization of poly (1‐vinyl‐3‐butylimidazolium‐ coco ‐methyl methacrylate) gel polymer electrolytes for dye‐sensitized solar cells: Effect of structure and composition
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Synthesis and characterization of poly (1‐vinyl‐3‐butylimidazolium‐ coco ‐methyl methacrylate) gel polymer electrolytes for dye‐sensitized solar cells: Effect of structure and composition

机译：聚（1-乙烯基-3-丁基咪唑鎓 - ）的合成与表征 - co co - 甲基丙烯酸甲酯）凝胶聚合物电解质用于染料敏化太阳能电池：结构和组成的影响

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> Herein, three ionic liquid random copolymers (P) containing 1‐vinyl‐3‐butylimidazolium bromide (VBImBr) and methyl methacrylate (MMA) with various molar ratios were prepared using conventional free radical polymerization. Afterward, their corresponding chemically cross‐linked copolymers (XP) were formed similarly in the presence of polyethylene glycol dimethacrylate (PEGDMA). The synthesized copolymers were characterized using FT‐IR, 1 H NMR, and GPC. Differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA) results showed that the rigidity and thermal stability of the copolymers depended on the ionic liquid content as well as the degree of cross‐linking. Gel polymer electrolytes were then prepared via obtained copolymers in the presence of a constant amount of synthesized imidazolium‐based ionic liquid. Among the copolymers, the P3 with in feed VBImBr:MMA molar ratio of 70:30 and the cross‐linked 1%‐XP3 copolymer prepared with 1?mol% of PEGDMA exhibited the highest conductivity and diffusion coefficients for I 3 ˉ and I ˉ . The power conversion efficiency of the optimized linear and cross‐linked copolymers (P3 and 1%‐XP3) under the simulated AM 1.5 solar spectrum irradiation at 100?mW?cm ?2 were 3.49 and 4.13% in the fabricated dye‐sensitized solar cells (DSSCs), respectively. The superior long‐term stability and high performance of the gel electrolyte containing 1%‐XP3 suggested it as commercial gel electrolyte for future DSSCs.
机译： > 这里，使用常规的自由基聚合制备含有含有1-乙烯基-3-丁基咪唑溴（Vbimbr）的三种离子液体无规共聚物（P）和具有各种摩尔比的甲基丙烯酸甲酯（MMA）。之后，在聚乙二醇二甲基丙烯酸酯（PEGDMA）存在下，它们相应的化学交联共聚物（XP）类似地形成。使用FT-IR表征合成的共聚物， 1 H NMR和GPC。差示扫描量热法（DSC）和热重分析（TGA）结果表明，共聚物的刚性和热稳定性依赖于离子液体含量以及交联度。然后通过所得共聚物在存在恒定量的合成的基于咪唑鎓离子液体存在下制备凝胶聚合物电解质。在共聚物中，具有饲料Vbimbr的p3：MMA摩尔比为70:30和用1〜摩尔％的PEGDMA制备的交联1％-XP3共聚物，表现出最高的导电性和扩散系数 3 ˉ 和我 ˉ 。在100μm的模拟AM 1.5太阳光谱辐射下，优化的线性和交联共聚物（P3和1％-XP3）的功率转换效率 ？2 在制造的染料敏化太阳能电池（DSSCs）中分别为3.49和4.13％。含有1％-XP3的凝胶电解质的卓越的长期稳定性和高性能表明它作为未来DSSC的商业凝胶电解质。

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