Efficient dye-sensitized solar cell with affordable alternative to platinum free counter electrode

IF 4.9 2区化学 Q2 CHEMISTRY, PHYSICAL

Colloids and Surfaces A: Physicochemical and Engineering Aspects Pub Date : 2024-11-06 DOI:10.1016/j.colsurfa.2024.135736

Sharmila Tharuman , Tse-Wei Chen , Shen-Ming Chen , Elayappan Tamilalagan , Wedad A. Al-onazi , M. Ajmal Ali , Jaysan Yu

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引用次数: 0

Abstract

The study focuses on MnCO₃/reduced graphene oxide (rGO) composite to investigate its capability against reduction of triiodide (I₃⁻), and hence to utilise its potential as a platinum free electrode in dye-sensitized solar cells (DSSCs). The MnCO₃/rGO composites were prepared with varying weight percentages of rGO to identify the optimal configuration to attain enhanced catalytic performance. The MnCO₃/rGO 75 wt% composite exhibited the optimal catalytic reaction kinetics for converting triiodide (I₃⁻) to iodide (I⁻), achieving a photon to electron conversion efficiency (PCE) of 6.62 %, with a photocurrent density (Jsc) of 13.29 mA cm⁻², voltage (Voc) of 0.76 V, and a fill factor (FF) of 0.65 at without load. This output performance is on par with that of to that of a conventional platinum (Pt) Counter Electrode, which achieved a PCE of 6.98 %. The findings indicate that MnCO₃/rGO 75 wt% composite shows significant promise, cost-effective alternative to Pt, offering efficient performance and improved material sustainability.

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采用经济实惠的无铂对电极替代品的高效染料敏化太阳能电池

本研究以 MnCO3/还原氧化石墨烯（rGO）复合材料为重点，研究其还原三碘化物（I3-）的能力，从而利用其作为染料敏化太阳能电池（DSSC）中无铂电极的潜力。我们制备了不同重量百分比的 MnCO3/rGO 复合材料，以确定获得更强催化性能的最佳配置。MnCO3/rGO 75 wt% 复合材料表现出将三碘化物（I3-）转化为碘化物（I-）的最佳催化反应动力学，实现了 6.62 % 的光子到电子转化效率（PCE），光电流密度（Jsc）为 13.29 mA cm-²，电压（Voc）为 0.76 V，无负载时的填充因子（FF）为 0.65。这一输出性能与传统的铂 (Pt) 反电极相当，后者的 PCE 为 6.98%。研究结果表明，MnCO3/rGO 75 wt% 复合材料前景广阔，是铂的经济高效替代品，具有高效的性能和更好的材料可持续性。

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来源期刊

Colloids and Surfaces A: Physicochemical and Engineering Aspects 化学-物理化学

CiteScore

8.70

自引率

9.60%

发文量

2421

审稿时长

56 days

期刊介绍： Colloids and Surfaces A: Physicochemical and Engineering Aspects is an international journal devoted to the science underlying applications of colloids and interfacial phenomena. The journal aims at publishing high quality research papers featuring new materials or new insights into the role of colloid and interface science in (for example) food, energy, minerals processing, pharmaceuticals or the environment.