This work examined the possibility of overcoming narrow band optical absorption of organic dyes in the range of 350–700   nm via surface plasmon effect mediated by RF-sputtered tungsten (W) thin film on mesoporous TiO ₂ for dye-sensitised solar cells (DSSCs) application. The UV–visible spectroscopic measurement showed optical absorption of W-film in the spectral range of 350–700   nm with a dominant characteristic feature in the range of 350–550   nm. W-thin film-coated TiO ₂ was used as an electron acceptor in DSSCs and observed ∼28% enhancement in short circuit current density compared to that of in a pristine TiO ₂ -based DSSC which did not use W-thin film on TiO ₂ . It is attributed to the local field-induced enhancement in optical absorption which resulted in improved exciton generation and effective charge transport in DSSCs enabled by W-thin film coating onto mesoporous TiO ₂ .

中文翻译：

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染料敏化太阳能电池中的射频溅射钨激活的表面等离激元效应

这项工作研究了克服350-700范围内有机染料的窄带光吸收的可能性   通过介孔TiO ₂上的RF溅射钨（W）薄膜介导的表面等离激元效应介导的纳米级，可 用于染料敏化太阳能电池（DSSC）。紫外可见光谱测量显示在350–700的光谱范围内W膜的光吸收   nm具有350–550范围内的主要特征   纳米 W薄膜涂覆的TiO ₂被用作DSSC中的电子受体，与 未在TiO ₂上使用W薄膜的原始TiO ₂基DSSC 相比，短路电流密度提高了约28％。 。这归因于局部场诱导的光学吸收的增强，这导致了WSC薄膜涂覆在介孔TiO ₂上，从而改善了激子的产生以及DSSC中有效的电荷传输 。