Effect of TiO2 blocking layer on photovoltaic performances of solar cells sensitized with N719

2019 International Conference on Signal, Control and Communication (SCC) Pub Date : 2019-12-01 DOI:10.1109/SCC47175.2019.9116174

M. Belhi, Z. Kaddachi, R. Gharbi, M. B. Karoui

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Abstract

In this study we employ a synthetic dye (ruthenizer 535-bisTBA (N719)) as a sensitizer for dye solar cells without $(Cell_{NBL}$) and based blocking layer $(Cell_{BL}$). The photoanodes prepared with doctor blade were analyzed by X’pert Pro X-ray diffractometer to identify the anatase structure. The optical properties of the dyes and sensitized photoanodes in the region 400–800 nm were determined by UV–Vis spectrophotometer. The current-Voltage (I-V) characteristics of realized DSSCs were measured in AM1.5 solar irradiance spectra at ambient temperature using Keithley 6517A multimeter. The blocking layer leads to the enhancement of photoconversion efficiency (PCE) by physical separation of the substrate FTO and the electrolyte. There is a remarkable increase of Jsc which reaches 8.88 mA.cm$^{-2}$ compared to the cell without blocking layer, leading an efficiency of 3.9% under power radiation equal to 100mWcm$^{-2}$. The obtained results show a simple way to improve the performance of dye-sensitized solar cells based on TiO2

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TiO2阻隔层对N719敏化太阳能电池光电性能的影响

在本研究中，我们采用合成染料(增稠剂535-bisTBA (N719))作为无$(Cell_{NBL}$)和基阻断层$(Cell_{BL}$)的染料太阳能电池的增感剂。用X 'pert Pro X射线衍射仪分析了用doctor blade制备的光阳极的锐钛矿结构。用紫外可见分光光度计测定了染料和敏化光阳极在400 ~ 800 nm范围内的光学性质。利用Keithley 6517A万用表在AM1.5太阳辐照光谱中测量了所实现的DSSCs的电流-电压(I-V)特性。阻断层通过将基底FTO与电解质物理分离，提高了光电转换效率。Jsc显著增加，达到8.88 mA。cm$^{-2}$与无阻挡层的电池相比，在功率辐射等于100mWcm$^{-2}$时效率为3.9%。所得结果为提高TiO2染料敏化太阳能电池的性能提供了一种简单的方法

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2019 International Conference on Signal, Control and Communication (SCC)

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