Cylindrical transparent conductive oxide-free dye-sensitized solar cells with treated flat titanium sheet

IF 1.5 4区工程技术 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Photonics for Energy Pub Date : 2022-10-01 DOI:10.1117/1.JPE.12.045502

A. Hayat, A. Baranwal, Masaki Nakamura, Fujisawa Shigeki, S. Pandey, S. Hayase

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引用次数: 0

Abstract

Abstract. Conventional dye-sensitized solar cells (DSSCs) require two transparent conductive oxide (TCO) glasses as working and counter electrodes and are one of the most costly components posing an appreciable cost burden for production and commercialization. To circumvent this issue, we propose a TCO-free device structure utilizing titanium (Ti) sheets as a substitute for TCO. This back contact device structure not only allows the removal of the costly TCO component from the working electrode but also enhances the extent of photons absorbed by the photoanode. A flat titanium sheet with microholes (FTS-MH) was successfully applied to fabricate cylindrical TCO-free-DSSCs) with a titanium sheet as a back contact electrode. When the H2O2 surface-treated FTS-MH substrate generating dense anatase TiO2 nanosheets was used as a photoanode, there was a pronounced improvement in efficiency from 5.76% to 8.59%. This was mainly attributed to the lower interfacial resistance facilitated by improved electrical contact between the conducting FTS-MH substrate and mesoporous TiO2 layer since enhancement in the dye loading was only 8.6%.

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圆柱形透明导电无氧化染料敏化太阳能电池，处理扁平钛片

摘要传统的染料敏化太阳能电池（DSSC）需要两种透明导电氧化物（TCO）玻璃作为工作电极和对电极，并且是对生产和商业化造成明显成本负担的最昂贵的部件之一。为了避免这个问题，我们提出了一种利用钛（Ti）片作为TCO替代品的无TCO器件结构。这种背接触器件结构不仅允许从工作电极去除昂贵的TCO成分，而且增强了光阳极吸收光子的程度。成功地将具有微孔的扁平钛片（FTS-MH）应用于以钛片作为背接触电极的圆柱形无TCO DSSC。当使用H2O2表面处理的产生致密锐钛矿TiO2纳米片的FTS-MH衬底作为光阳极时，效率从5.76%显著提高到8.59%。这主要归因于导电的FTS-MH基底和介孔TiO2层之间的电接触的改善促进了较低的界面电阻，因为染料负载的增强仅为8.6%。

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来源期刊

Journal of Photonics for Energy MATERIALS SCIENCE, MULTIDISCIPLINARY-OPTICS

CiteScore

3.20

自引率

5.90%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal of Photonics for Energy publishes peer-reviewed papers covering fundamental and applied research areas focused on the applications of photonics for renewable energy harvesting, conversion, storage, distribution, monitoring, consumption, and efficient usage.