Geometrical optimization for high efficiency carbon perovskite modules
Geometrical optimization for high efficiency carbon perovskite modules
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DOI：
10.1016/j.solener.2019.05.047
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发表时间：
2019-07-15
期刊：
影响因子：
6.7
通讯作者：
Jewell, E. H.
中科院分区：
文献类型：
--
作者：
Mouhamad, Y.;Meroni, S. M. P.;Jewell, E. H.
碳基钙钛矿太阳能电池(C-PSC)具有制造成本低、稳定性好等优点，具有很强的商业潜力。C-PSC由三层介孔层组成，夹在氟掺杂氧化锡(FTO)衬底作为下电极和碳作为上电极之间。然而，当从单个电池扩展到模块时，两个电极的低电导率是一个真正的挑战。本文采用二维直流模拟的方法研究了有源区宽度对单个C-PSC性能的影响。用同样的方法研究了子电池的宽度、互连线的宽度和互连线上的接触电阻对串联的10个子电池组件性能的影响。使用实验J(Sc)和V-OC作为模型的输入，考虑了碳电池的本征性质。研究发现，碳的导电性是确定最佳几何构型的关键。对于10Omega/sq碳片电阻，最佳互连宽度为500µm，子室宽度为4.9 mm，最佳填充因子为%。
The carbon based perovskite solar cell (C-PSC) has a strong commercial potential due its low manufacturing cost and its improved stability. A C-PSC consists of three mesoporous layers sandwiched between a Fluorine-doped tin oxide (FTO) substrate as bottom electrode and carbon as top electrode. However, the low conductivity of the two electrodes represents a real challenge when scaling from individual cells to modules. Here, 2D direct current simulation is used to investigate the influence of width of the active area on the performance of a single C-PSC. The same method is used to study the effect of the sub-cell's width, the interconnection's width and the contact resistance at the interconnection on the performance of a 10 sub-cells module connected in series. The intrinsic properties of the carbon cell are taken in account using experimental J(SC) and V-OC as an input to the modelling. The carbon conductivity is found to be critical in defining the optimum geometry. For a 10 Omega/sq carbon sheet resistance, the optimum interconnection width is 500 mu m and the sub cell width is 4.9 mm, leading to an optimum fill factor of 64%.