Aeineh Naemeh, Castro-Méndez Andrés-Felipe, Rodriguez-Cantó Pedro J, Abargues Rafael, Hassanabadi Ehsan, Suarez Isaac, Behjat Abbas, Ortiz Pablo, Martínez-Pastor Juan P, Mora-Seró Ivan
Institute of Advanced Materials (INAM), Universitat Jaume I, Castelló 12006, Spain.
Atomic and Molecular Group, Faculty of Physics, Yazd University, Yazd 51167-87317, Iran.
ACS Omega. 2018 Aug 31;3(8):9798-9804. doi: 10.1021/acsomega.8b01119. Epub 2018 Aug 23.
In this work, SiO nanoparticles (NPs) were integrated into the mesoporous TiO layer of a perovskite solar cell to investigate their effect on cell performance. Different concentrations of SiO/ethanol have been combined in TiO/ethanol to prepare pastes for the fabrication of the mesoporous layer with which perovskite solar cells have been fabricated. Addition of SiO NPs of 50 and 100 nm sizes produces an enhancement of cell performance mainly because of an improvement of the photocurrent. This increment is in good agreement with the theoretical predictions based on light scattering induced by dielectric SiO NPs. The samples using modified scaffolds with NPs also present a significant lower current-potential hysteresis indicating that NP incorporation also affects the ion accumulation at the perovskite interface, providing an additional beneficial effect. The results stress the importance of the appropriated management of the optical properties on further optimization of perovskite solar cell technology.
在这项工作中，将二氧化硅纳米颗粒（NPs）集成到钙钛矿太阳能电池的介孔二氧化钛层中，以研究它们对电池性能的影响。已将不同浓度的二氧化硅/乙醇与二氧化钛/乙醇混合，制备用于制造介孔层的浆料，并用该浆料制造了钙钛矿太阳能电池。添加尺寸为50和100纳米的二氧化硅纳米颗粒可提高电池性能，这主要是由于光电流得到了改善。这种增加与基于介电二氧化硅纳米颗粒引起的光散射的理论预测高度一致。使用含有纳米颗粒的改性支架的样品也呈现出明显更低的电流-电势滞后现象，这表明纳米颗粒的掺入也会影响钙钛矿界面处的离子积累，从而带来额外的有益效果。这些结果强调了在进一步优化钙钛矿太阳能电池技术时，合理控制光学性质的重要性。
