Cu-Ag bi-layer films in dielectric/metal/dielectric transparent electrodes as ITO free electrode in organic photovoltaic devices
Cu-Ag bi-layer films in dielectric/metal/dielectric transparent electrodes as ITO free electrode in organic photovoltaic devices
复制标题
DOI：
10.1016/j.orgel.2016.12.030
复制
发表时间：
2017-03
影响因子：
3.2
通讯作者：
M. Hssein;S. Tuo;S. Benayoun;L. Cattin;M. Morsli;Y. Mouchaal;M. Addou;A. Khelil;J. Bernède
中科院分区：
文献类型：
--
作者：
M. Hssein;S. Tuo;S. Benayoun;L. Cattin;M. Morsli;Y. Mouchaal;M. Addou;A. Khelil;J. Bernède
在ITO替代材料中，介电/金属/介电多层结构是研究最多的替代材料之一。然而，如果系统地研究它们的光学和电学性质，它们的机械性质就不一样了。本文研究了ZnS/Cu/Ag/ZnS、ZnS/Cu/Ag/MO3（M = Mo或W）结构的性质。当λ = 600 nm时，最优结构的最大透射率为90%，片电阻为5 Ω/sq，其优值为82 10−3Ω−1。在这些标准措施之外，我们继续研究多层结构的力学性能。内外弯曲试验表明，ZnS/Cu/Ag/ZnS（或MO3）结构比ITO具有更强的柔韧性，而其对scotch试验的响应表明，它们对衬底、玻璃或塑料具有较大的附着力。刮擦附着力测试表明，Ag层对基体的附着力小于ZnS/Cu/Ag/ZnS，小于ITO层。另一方面，该试验表明，ZnS/Cu/Ag/ZnS （L = 25 N时无裂纹）的脆性低于ITO（裂纹L = 15N）。最后，当用作有机太阳能电池的阳极时，ZnS/Cu/Ag/ wo3结构可以获得与ITO相似的最佳效率。
Among ITO alternative, dielectric/metal/dielectric multilayer structures are one of the most often studied possible substituent. However, if their optical and electrical properties are systematically investigated it is not the same with regard to their mechanical properties. In the present manuscript we have studied the properties of ZnS/Cu/Ag/ZnS, ZnS/Cu/Ag/MO3(with M = Mo or W) structures. With a maximum transmission of 90% and a sheet resistance of 5 Ω/sq the optimum structure exhibits a figure of merit of 82 10−3Ω−1when λ = 600 nm. Beyond these standard measures we proceeded to the study of the mechanical properties of the multilayer structures. The inner and outer bending tests show that the ZnS/Cu/Ag/ZnS (or MO3) structures are more flexible than ITO, while their responses to scotch tests show that they exhibit a large adhesion to the substrate, glass or plastic. The scratching adhesion test puts in evidence that the adhesion to the substrate of the Ag layer is smaller than that of ZnS/Cu/Ag/ZnS, which is smaller than that of ITO. On the other hand, this test shows that the ZnS/Cu/Ag/ZnS (no cracks for L = 25 N) is less brittle than ITO (cracks L = 15N). Finally, when used as anode in organic solar cells, the structure ZnS/Cu/Ag/WO3allows achieving the best efficiency, similar to that obtained with ITO.