Effect of RF sputtered arc-TiO2 and sol-gel c-TiO2 compact layers on the performance of dye-sensitized solar cell

RSM 2013 IEEE Regional Symposium on Micro and Nanoelectronics Pub Date : 2013-09-01 DOI:10.1109/RSM.2013.6706498

M. H. Abdullah, I. Saurdi, M. Rusop

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引用次数: 3

Abstract

A novel gradient index antireflective TiO2 compact layer (arc-TiO2) that can improve transmittance and prevent charge recombination has been developed for dye-sensitized solar cells by radio frequency magnetron sputtering. Effects of the presence of arc-TiO2 compact layer to the performance improvement of a DSSC were compared to that of a sol-gel derived compact layer (c-TiO2) by means of incident photon-to-current efficiency (IPCE) and open-circuit voltage decay (OCVD). The higher and right-shifted transmittance spectra in the arc-TiO2 based electrode have improved the sensitization effect of the DSSC in a specific region as shown by IPCE measurement. The slow decay behavior of the photo-voltage attributed to the merits brought by the arc-TiO2 and c-TiO2 compact layer has been evidenced by the OCVD measurement. An improvement in the overall conversion efficiency of 7% increment compared to the cell with c-TiO2 compact layer is mainly responsible for the higher transmittance and fewer recombination effects of the arc-TiO2 compact layer employed in the DSSC.

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RF溅射arc-TiO2和溶胶-凝胶c-TiO2致密层对染料敏化太阳能电池性能的影响

采用射频磁控溅射技术制备了一种新型的梯度指数抗反射TiO2致密层(arc-TiO2)，可提高染料敏化太阳能电池的透光率并防止电荷复合。通过入射光子电流效率(IPCE)和开路电压衰减(OCVD)，比较了电弧- tio2致密层与溶胶-凝胶致密层(c-TiO2)对DSSC性能改善的影响。IPCE测量表明，电弧- tio2基电极的高透射光谱和右移透射光谱提高了DSSC在特定区域的敏化效果。OCVD测量证实了电弧- tio2和c-TiO2致密层所带来的光电电压的缓慢衰减行为。与c-TiO2致密层相比，整体转换效率提高了7%，这主要是由于电弧型tio2致密层在DSSC中具有更高的透光率和更少的复合效应。

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RSM 2013 IEEE Regional Symposium on Micro and Nanoelectronics

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