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A rational design of low cost and flexible carbon composite dye sensitized solar cell
Electrochimica Acta ( IF 5.5 ) Pub Date : 2020-03-16 , DOI: 10.1016/j.electacta.2020.136050
Alvira Ayoub Arbab , Naveed Mengal , Anam Ali Memon , Kyung Chul Sun , Sung Hoon Jeong

Low cost carbon materials gained extensive attention in the field of sustainable energy storage devices. A major challenge in assembly of fluorine doped tin oxide (FTO) glass free dye sensitized solar cell (DSSC) is the heat treatment limitation and transparency of electrodes. In this work, a rational design of a carbon composite dye-sensitized solar cell (CC-DSSC) fabricated with stacking carbon fiber wet-laid web (CFW) is described. The front electrode is prepared by a fibrous thin sheet of carbon fibers deposited with extended Titania nanorods (e-TiO2 nR). Whereas, the counter electrode is prepared by the composite of CF and exfoliated graphite micro platelets (Ex-GMP). The assembled CC-DSSC demonstrated 5.207% efficiency with high fill factor (FF) and open-circuit voltage (VOC). The high VOC of designed CC-DSSC ascribed to the high transmittance (50%), sheet conductivity and efficient charge generation of e-TiO2 nR/CFW electrode. Moreover, e-TiO2 nR provides high dye absorption and electron mobility suitable for the CFW substrate. Alternatively, high FF of CC-DSSC provides evidence of remarkable electrocatalytic activity and low charge transfer resistance (1.915 Ω) of the Ex-GMP/CFW CE system. Our proposed system of carbon composite DSSC will provide new ways towards the fabrication of sustainable and low-cost energy storage devices.



中文翻译:

低成本,柔性碳复合染料敏化太阳能电池的合理设计

低成本碳材料在可持续储能设备领域引起了广泛关注。组装氟掺杂氧化锡(FTO)无玻璃染料敏化太阳能电池(DSSC)的主要挑战是电极的热处理限制和透明性。在这项工作中,描述了碳纤维湿法成网(CF W)堆叠而成的碳复合染料敏化太阳能电池(CC-DSSC)的合理设计。前电极由沉积有扩展的Titania纳米棒(e-TiO 2 nR)的碳纤维纤维薄片制成。而对电极则由CF和片状石墨微片(Ex-GMP)的复合材料制成。组装的CC-DSSC在高填充系数(FF)和开路电压(VOC)。设计的CC-DSSC的高V OC可归因于e-TiO 2 nR / CF W电极的高透射率(50%),薄层电导率和高效电荷产生。此外,e-TiO 2 nR提供了适合CF W基板的高染料吸收和电子迁移率。另外,CC-DSSC的高FF提供了Ex-GMP / CF W CE系统出色的电催化活性和低的电荷转移电阻(1.915Ω)的证据。我们提出的碳复合材料DSSC系统将为制造可持续的低成本储能设备提供新的途径。

更新日期:2020-03-16
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