The purpose of this paper is to elucidate the aging effect in dye-sensitized solar cells (DSSCs) sealed with thermoplastic film and to compare it with unsealed DSSCs.,The paper presents the steps of the fabrication of standard DSSC, as well as the DSSC-sealing processes, by using thermoplastic film. Current-voltage characterization was performed to observe the changes in efficiency, fill factor, short circuit current density and open circuit voltage for both unsealed and sealed DSSCs for aging time up to 336 h.,The unsealed DSSC showed significant drop in efficiency from 4.26 to 2.42 per cent within the first 5.5 h of aging time because of the leakage and volatilization of the solvent in the electrolyte. On the other hand, the sealed DSSC exhibited a gradual improvement of efficiency from 4.16 to 4.73 per cent after the first 216 h of aging time. The initial efficiency increment can be ascribed to the improved adsorption of electrolyte into the titanium dioxide film because of the gradual desorption of excess dye from TiO2 with increasing aging time.,This paper demonstrates the importance of the proper sealing process for the long-term operation of DSSC.

中文翻译：

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用热塑性薄膜密封的染料敏化太阳能电池的老化效应

本文的目的是阐明用热塑性薄膜密封的染料敏化太阳能电池 (DSSC) 的老化效应，并将其与未密封的 DSSC 进行比较。本文介绍了标准 DSSC 的制造步骤，以及 DSSC - 密封工艺，使用热塑性薄膜。进行电流-电压表征以观察未密封和密封的 DSSC 老化时间长达 336 小时的效率、填充因子、短路电流密度和开路电压的变化。未密封的 DSSC 显示效率从 4.26 显着下降到由于电解液中溶剂的泄漏和挥发，老化时间的前 5.5 小时内为 2.42%。另一方面，在老化时间的前 216 小时后，密封的 DSSC 的效率逐渐提高，从 4.16% 提高到 4.73%。