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首页> 外文会议>European Photovoltaic Solar Energy Conference and Exhibition >PT/NI COUNTER-ELECTRODES WITH IMPROVED STABILITY FOR DYE SENSITIZED SOLAR CELLS
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PT/NI COUNTER-ELECTRODES WITH IMPROVED STABILITY FOR DYE SENSITIZED SOLAR CELLS

机译：染料敏化太阳能电池稳定性得到改善的PT / NI对电极

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In this work we investigate the stability of platinum (Pt) electrodes after storage in an electrolytesolution (0.5M KI, 0.05 M I_2 in 90%/10% PC/EG), having the standard synthesis used for dye sensitized solar cells.The electrodes were prepared by electrodeposition and thermal decomposition of hexachloroplatinic acid (H_2PtCl_6)solutions. A decrease of up to 40% in the current density for triiodide reduction was caused by storage in theelectrolyte, except in the case of constant voltage electrodeposition when the deposited Pt charge density was in theorder of 60mC/cm~2. The use of electrodeposited Ni electrodes as substrates for Pt deposition was found to prevent thedegradation of the electrodes, even after 50 days of storage in the electrolyte. Nickel has no catalytic effect in thereduction of triiodide ions and the amount of Ni can be kept to a minimum value, such as below 40mC/cm2, withoutsignificant increment in the preparation cost.
机译：在这项工作中，我们研究了铂（Pt）电极在电解液中存储后的稳定性 溶液（0.5M KI，0.05％I_2在90％/ 10％PC / EG中的溶液），具有用于染料敏化太阳能电池的标准合成方法。 通过六氯铂酸（H_2PtCl_6）的电沉积和热分解制备电极 解决方案。三碘化物还原导致电流密度降低多达40％，这是由于将其储存在 电解质，除非在沉积的Pt电荷密度在Pt中为恒定电压电沉积的情况下 约60mC / cm〜2。发现使用电沉积的Ni电极作为Pt沉积的衬底可以防止金属的沉积。 即使在电解液中储存50天后，电极的性能也会下降。镍在催化过程中没有催化作用 三碘化物离子的还原和Ni的含量可以保持在最小值，例如低于40mC / cm2，而无需 大大增加了准备成本。

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