Ag-doped TiO2 as photoanode for high performance dye sensitized solar cells

Q1 Materials Science Materials Science for Energy Technologies Pub Date : 2024-01-01 DOI:10.1016/j.mset.2024.02.002

Dea Agnestasya Kurnia Ramadhani , Nabella Sholeha , Nanda Nafi'atul Khusna , Markus Diantoro , Arif Nur Afandi , Zurina Osman , Herlin Pujiarti

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Abstract

Titanium dioxide (TiO₂) nanoparticles are commonly used as photoanode materials in dye-sensitized solar cells (DSSC). The structure of TiO₂ can be modified by doping to enhance its optical and electrical performance. The modification carried out in this research was by providing Ag doping on TiO₂. Silver (Ag) added to TiO₂ is convinced to reduce the recombination and increase the energy level of the photo-excited electrons from the TiO₂ conduction band. Ag-doped TiO₂ was carried out by a simple mixing method. The microstructure of Ag-doped TiO₂ was successfully characterized by XRD and SEM. The absorbance of the Ag-doped TiO₂ thin films was measured by UV–Vis spectroscopy, confirming the optimum energy gap of 3.09 eV and resulting in the best PCE of 6.31 %.

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掺银 TiO2 作为光阳极用于高性能染料敏化太阳能电池

二氧化钛（TiO2）纳米粒子通常用作染料敏化太阳能电池（DSSC）的光阳极材料。通过掺杂可以改变二氧化钛的结构，从而提高其光学和电学性能。本研究通过在 TiO2 中掺杂 Ag 来对其进行改性。在二氧化钛中添加银（Ag）可减少重组，提高二氧化钛导带中光激发电子的能级。掺银二氧化钛是通过简单的混合方法实现的。XRD 和 SEM 成功地表征了掺银 TiO2 的微观结构。通过紫外-可见光谱法测量了掺银 TiO2 薄膜的吸光度，证实其最佳能隙为 3.09 eV，从而获得了 6.31 % 的最佳 PCE。

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