Washing of PEDOT: PSS for Perovskite Solar Cells Performance Optimization
DOI:
https://doi.org/10.18311/jmmf/2023/33752Keywords:
Perovskite Solar Cells, Solvent Washing, Solar Cell Materials, Third-Generation Photovoltaics, Solar CellsAbstract
Poly (3,4-ethylenedioxythiophene): poly (styrene sulfonate) (PEDOT:PSS) is one of the most commonly used Hole Transporting Materials (HTMs) in a Perovskite Solar Cell (PSC). However, its low conductivity and local charge transport are issues that restrict the device’s performance. Moreover, PEDOT:PSS films have many pinholes and are inhomogeneous, leading to increased charge recombination. Thus, these significant drawbacks require an urgent address to enable PSCs to reach their desired efficiency values. In this paper, we have experimented by incorporating a washing technique using Isopropyl Alcohol (IPA). It was observed that the modified device improved the device efficiency to above 11%. The increase in device efficiency can be attributed to better conductivity, smoother charge transfer, superior film quality and improved material compatibility of different PSC components.
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References
W.S. Yang, J.H. Noh, N.J. Jeon, Y.C. Kim, S. Ryu, J. Seo, S. Il Seok, (2015): High-performance photovoltaic perovskite layers fabricated through intramolecular exchange,Science. 348 (2015) 1234–1237. https:// doi.org/ 10.1126/science.aaa9272.
M.M. Lee, J. Teuscher, T. Miyasaka, T.N. Murakami, H.J. Snaith, (2012): Efficient hybrid solar cells based on meso-superstructured organometal halide perovskites,Science. 338 (2012) 643–647. https:// doi.org/ 10.1126/science.1228604.
Docampo, P., Ball, J., Darwich, M., Eperon, G., & Snaith, H. (2013): Efficient organometal trihalide perovskite planar-heterojunction solar cells on flexible polymer substrates. Nature Communications, 4(1). doi: 10.1038/ncomms3761
Roldán-Carmona, C., Malinkiewicz, O., Soriano, A., Mínguez Espallargas, G., Garcia, A., & Reinecke, P. et al. (2014): Flexible high efficiency perovskite solar cells. Energy & Amp; Environmental Science, 7(3), 994. doi: 10.1039/c3ee43619e
Huang, D., Goh, T., Kong, J., Zheng, Y., Zhao, S., Xu, Z., & Taylor, A. (2017): Perovskite solar cells with a DMSO-treated PEDOT:PSS hole transport layer exhibit higher photovoltaic performance and enhanced durability. Nanoscale, 9(12), 4236-4243. doi: 10.1039/ c6nr08375g
Xia, Y., Sun, K. and Ouyang, J. (2012): Solution-Processed Metallic Conducting Polymer Films as Transparent Electrode of Optoelectronic Devices. Adv. Mater., 24: 2436-2440. https://doi.org/10.1002/ adma.201104795
Zhao, Z., Liu, Q., Zhang, W., & Yang, S. (2018). Conductivity enhancement of PEDOT:PSS film via sulfonic acid modification: application as transparent electrode for ITO-free polymer solar cells. Science China Chemistry, 61(9), 1179-1186. doi: 10.1007/ s11426-017-9205-x
Alishah, H., Choi, F., Kuruoglu, F., Erol, A., & Gunes, S. (2021): Improvement of fill factor by the utilization of Zn-doped PEDOT:PSS hole-transport layers for p-i-n planar type of perovskite solar cells. Electrochimica Acta, 388, 138658. doi: 10.1016/j.electacta.2021.138658
Peng Mao, Qing Zhou, Zhiwen Jin, Hui Li, and Jizheng Wang ACS Applied Materials & Interfaces2016 8 (36), 23837-23843 DOI: 10.1021/acsami.6b08863
Prochowicz, D., Tavakoli, M., Solanki, A., Goh, T., Pandey, K., & Sum, T. et al. (2018): Understanding the effect of chlorobenzene and isopropanol anti-solvent treatments on the recombination and interfacial charge accumulation in efficient planar perovskite solar cells. Journal of Materials Chemistry A, 6(29), 14307-14314. doi: 10.1039/c8ta03782e