Document Type : Original Article
Author
Nirmala College Muvattupuzha, Kerala, India.
Abstract
Highly unstable absorber layers along with costly Hole Transport Materials(HTMs) have been the main problems in the perovskite-based photovoltaic industry recently. Here in this study, we intend to meet both these problems by introducing a non-toxic cesium-based absorber layer and low-cost material, Graphene Oxide (GO) as the Hole Transporting Layer (HTL). We use the Solar Cell Capacitance Simulator Program (SCAPS) to study the various output parameters of the device with the structure GO/Cs2TiBr6/TiO2. Physical properties like the thickness of the absorber and hole transporting layers, the role of the layer interfaces, the effect of electron affinity, optical properties like the band gap of the absorber and hole transporting layer, electrical properties like the parasitic resistance, and finally the influence of operating conditions like the temperature on the working of the device was found out. The results show that a thickness of 1 μm for absorber and 0.1 μm for HTL is suitable. Also, the optimum value for front and back interface layers were 1010 cm-3 and 1016 cm-3 respectively. Resistance values were fixed at 2 for series and 40 for shunt resistance. The electron affinity doesn’t seem to have much effect on the device performance while with the increase in temperature the performance of the device deteriorated. The highest efficiency that we obtained from the optimized device was 15.3%. In short, this unprecedented work shows that Cs2TiBr6 - GO based devices are suitable candidates to achieve highly efficient, eco-friendly, all-inorganic perovskite solar cells.
Keywords
[1] Design and Simulation of Grid Connected Solar Si-Poly Photovoltaic Plant using PVsyst for Pune, India Location. Renewable Energy Research and Applications (RERA) Volume 3, Issue 1, January 2022, Pages 41-49, http://dx.doi.org/10.22044/rera.2021.11057.1069.
[2] Best Research-Cell Efficiency Chart, (n.d.). https://www.nrel.gov/pv/cell-efficiency.html (accessed June 12, 2022).
[3] J.D. Major, Grain boundaries in CdTe thin film solar cells: a review, Semicond. Sci. Technol. 31 (2016) 093001. https://doi.org/10.1088/0268-1242/31/9/093001.
[4] Colloidal Quantum Dot Solar Cells | Chemical Reviews, (n.d.). https://pubs.acs.org/doi/abs/10.1021/acs.chemrev.5b00063 (accessed June 12, 2022).
[5] Brief review of cadmium telluride-based photovoltaic technologies, (n.d.). https://www.spiedigitallibrary.org/journals/journal-of-photonics-for-energy/volume-4/issue-01/040996/Brief-review-of-cadmium-telluride-based-photovoltaic-technologies/10.1117/1.JPE.4.040996.full?SSO=1 (accessed June 12, 2022).
[6] Cracking perylene diimide backbone for fullerene-free polymer solar cells | Natalia Terenti- Academia.edu, (n.d.). https://www.academia.edu/35367843/Cracking_perylene_diimide_backbone_for_fullerene-free_polymer_solar_cells (accessed June 12, 2022).
[7] J.H. Noh, S.H. Im, J.H. Heo, T.N. Mandal, and S.I. Seok, Chemical Management for Colorful, Efficient, and Stable Inorganic–Organic Hybrid Nanostructured Solar Cells, Nano Lett. 13 (2013) 1764–1769. https://doi.org/10.1021/nl400349b.
[8] S. De Wolf, J. Holovsky, S.-J. Moon, P. Löper, B. Niesen, M. Ledinsky, F.-J. Haug, J.-H. Yum, and C. Ballif, Organometallic Halide Perovskites: Sharp Optical Absorption Edge and its Relation to Photovoltaic Performance, J Phys Chem Lett. 5 (2014) 1035–1039. https://doi.org/10.1021/jz500279b.
[9] S. Prasanthkumar and L. Giribabu, Recent Advances in Perovskite-Based Solar Cells, Current Science. 111 (2016) 1173–1181. https://doi.org/10.18520/cs/v111/i7/1173-1181.
[10] Electron-Hole Diffusion Lengths Exceeding 1 Micrometer in an Organometal Trihalide Perovskite Absorber, (n.d.). https://www.science.org/doi/10.1126/science.1243982 (accessed June 12, 2022).
[11] A. Kojima, K. Teshima, and Y. Shirai, T. Miyasaka, Organometal Halide Perovskites as Visible-Light Sensitizers for Photovoltaic Cells, J. Am. Chem. Soc. 131 (2009) 6050–6051. https://doi.org/10.1021/ja809598r.
[12] D. Liu and T.L. Kelly, Perovskite solar cells with a planar heterojunction structure prepared using room-temperature solution processing techniques, Nature Photonics. 8 (2014) 133–138. https://doi.org/10.1038/nphoton.2013.342.
[13] Viability of Lead-Free Perovskites with Mixed Chalcogen and Halogen Anions for Photovoltaic Applications | The Journal of Physical Chemistry C, (n.d.). https://pubs.acs.org/doi/abs/10.1021/acs.jpcc.6b00920 (accessed June 12, 2022).
[14] Thin-Film Deposition and Characterization of a Sn-Deficient Perovskite Derivative Cs2SnI6 | Chemistry of Materials, (n.d.). https://pubs.acs.org/doi/abs/10.1021/acs.chemmater.6b00433 (accessed June 12, 2022).
[15] Searching for promising new perovskite-based photovoltaic absorbers: the importance of electronic dimensionality-Materials Horizons (RSC Publishing), (n.d.). https://pubs.rsc.org/en/content/articlelanding/2017/mh/c6mh00519e (accessed June 12, 2022).
[16] Engineering Interface Structure to Improve Efficiency and Stability of Organometal Halide Perovskite Solar Cells | The Journal of Physical Chemistry B, (n.d.). https://pubs.acs.org/doi/10.1021/acs.jpcb.7b03921 (accessed June 12, 2022).
[17] Light-induced reactivity of gold and hybrid perovskite as a new possible degradation mechanism in perovskite solar cells-Journal of Materials Chemistry A (RSC Publishing), (n.d.). https://pubs.rsc.org/en/content/articlelanding/2018/ta/c7ta10217h (accessed June 12, 2022).
[18] High-Performance Formamidinium-based Perovskite Solar Cells via Microstructure-Mediated δ-to-α Phase Transformation | Chemistry of Materials, (n.d.). https://pubs.acs.org/doi/10.1021/acs.chemmater.7b00523 (accessed June 12, 2022).
[19] P. Qin, S. Tanaka, S. Ito, N. Tetreault, K. Manabe, H. Nishino, M.K. Nazeeruddin, and M. Grätzel, Inorganic hole conductor-based lead halide perovskite solar cells with 12.4% conversion efficiency, Nat Commun. 5 (2014) 3834. https://doi.org/10.1038/ncomms4834.
[20] E. Mosconi, P. Umari, and F.D. Angelis, Electronic and optical properties of mixed Sn–Pb organohalide perovskites: a first principles investigation, J. Mater. Chem. A. 3 (2015) 9208–9215. https://doi.org/10.1039/C4TA06230B.
[21] Anomalous Band Gap Behavior in Mixed Sn and Pb Perovskites Enables Broadening of Absorption Spectrum in Solar Cells | Journal of the American Chemical Society, (n.d.). https://pubs.acs.org/doi/10.1021/ja5033259 (accessed June 12, 2022).
[22] T. Krishnamoorthy, H. Ding, C. Yan, W.L. Leong, T. Baikie, Z. Zhang, M. Sherburne, S. Li, M. Asta, N. Mathews, and S.G. Mhaisalkar, Lead-free germanium iodide perovskite materials for photovoltaic applications, J. Mater. Chem. A. 3 (2015) 23829–23832. https://doi.org/10.1039/C5TA05741H.
[23] G. Niu, H. Yu, J. Li, D. Wang, and L. Wang, Controlled orientation of perovskite films through mixed cations toward high performance perovskite solar cells, Nano Energy. 27 (2016) 87–94. https://doi.org/10.1016/j.nanoen.2016.06.053.
[24] Enhancement of thermal stability for perovskite solar cells through cesium doping-RSC Advances (RSC Publishing), (n.d.). https://pubs.rsc.org/en/content/articlelanding/2017/ra/c6ra28501e (accessed June 12, 2022).
[25] Enhanced Charge Carrier Transport and Device Performance Through Dual-Cesium Doping in Mixed-Cation Perovskite Solar Cells with Near Unity Free Carrier Ratios | ACS Applied Materials & Interfaces, (n.d.). https://pubs.acs.org/doi/abs/10.1021/acsami.6b12845 (accessed June 14, 2022).
[26] Die Gesetze der Krystallochemie | SpringerLink, (n.d.). https://link.springer.com/article/10.1007/BF01507527 (accessed June 12, 2022).
[27] Stabilizing Perovskite Structures by Tuning Tolerance Factor: Formation of Formamidinium and Cesium Lead Iodide Solid-State Alloys | Chemistry of Materials, (n.d.). https://pubs.acs.org/doi/10.1021/acs.chemmater.5b04107 (accessed June 12, 2022).
[28] T. Saha-Dasgupta, Double perovskites with 3d and 4d/5d transition metals: compounds with promises, Mater. Res. Express. 7 (2020) 014003. https://doi.org/10.1088/2053-1591/ab6293.
[29] Earth-Abundant Nontoxic Titanium(IV)-based Vacancy-Ordered Double Perovskite Halides with Tunable 1.0 to 1.8 eV Bandgaps for Photovoltaic Applications | ACS Energy Letters, (n.d.). https://pubs.acs.org/doi/10.1021/acsenergylett.7b01167 (accessed June 12, 2022).
[30] D. Kong, D. Cheng, X. Wang, K. Zhang, H. Wang, K. Liu, H. Li, X. Sheng, and L. Yin, Solution processed lead-free cesium titanium halide perovskites and their structural, thermal and optical characteristics, J. Mater. Chem. C. 8 (2020) 1591–1597. https://doi.org/10.1039/C9TC05711K.
[31] M. Chen, M.-G. Ju, A.D. Carl, Y. Zong, R.L. Grimm, J. Gu, X.C. Zeng, Y. Zhou, and N.P. Padture, Cesium Titanium(IV) Bromide Thin Films based Stable Lead-free Perovskite Solar Cells, Joule. 2 (2018) 558–570. https://doi.org/10.1016/j.joule.2018.01.009.
[32] Improved stability and efficiency of perovskite solar cells with submicron flexible barrier films deposited in air-Journal of Materials Chemistry A (RSC Publishing), (n.d.). https://pubs.rsc.org/en/content/articlelanding/2017/ta/c7ta09178h (accessed June 12, 2022).
[33] Highly reproducible perovskite solar cells based on solution coating from mixed solvents - Document-Gale Academic OneFile, (n.d.). https://go.gale.com/ps/i.do?id=GALE%7CA518490884&sid=googleScholar&v=2.1&it=r&linkaccess=abs&issn=00222461&p=AONE&sw=w&userGroupName=anon%7Ebc86b822 (accessed June 12, 2022).
[34] A. Dubey, N. Adhikari, S. Mabrouk, F. Wu, K. Chen, S. Yang, and Q. Qiao, A strategic review on processing routes towards highly efficient perovskite solar cells, J. Mater. Chem. A. 6 (2018) 2406–2431. https://doi.org/10.1039/C7TA08277K.
[35] A. Fakharuddin, L. Schmidt-Mende, G. Garcia-Belmonte, R. Jose, and I. Mora-Sero, Interfaces in Perovskite Solar Cells, Advanced Energy Materials. 7 (2017) 1700623. https://doi.org/10.1002/aenm.201700623.
[36] M.A. Nalianya, C. Awino, H. Barasa, V. Odari, F. Gaitho, B. Omogo, and M. Mageto, Numerical study of lead free CsSn0.5Ge0.5I3 perovskite solar cell by SCAPS-1D, Optik. 248 (2021) 168060. https://doi.org/10.1016/j.ijleo.2021.168060.
[37] D.K. Jarwal, A.K. Mishra, A. Kumar, S. Ratan, A.P. Singh, C. Kumar, B. Mukherjee, and S. Jit, Fabrication and TCAD simulation of TiO2 nanorods electron transport layer based perovskite solar cells, Superlattices and Microstructures. 140 (2020) 106463. https://doi.org/10.1016/j.spmi.2020.106463.
[38] S. Hossei̇ni̇, M. Bahramgour, N. Deli̇baş, and A. Ni̇ai̇e, Investigation of a Perovskite Solar Cell and Various Parameters Impact on Its Layers and the Effect of Interface Modification by Using P3HT as an Ultrathin Polymeric Layer Through SCAPS-1D Simulation, Sakarya University Journal of Science. 25 (2021) 1168–1179. https://doi.org/10.16984/saufenbilder.947735.
[39] J.-Y. Jeng, Y.-F. Chiang, M.-H. Lee, S.-R. Peng, T.-F. Guo, P. Chen, and T.-C. Wen, CH3NH3PbI3 Perovskite/Fullerene Planar-Heterojunction Hybrid Solar Cells, Advanced Materials. 25 (2013) 3727–3732. https://doi.org/10.1002/adma.201301327.
[40] Novel graphene‐based transparent electrodes for perovskite solar cells-Iqbal-2018- International Journal of Energy Research-Wiley Online Library, (n.d.). https://onlinelibrary.wiley.com/doi/abs/10.1002/er.4244 (accessed June 12, 2022).
[41] Low temperature processed inverted planar perovskite solar cells by r-GO/CuSCN hole-transport bilayer with improved stability | Semantic Scholar, (n.d.). https://www.semanticscholar.org/paper/Low-temperature-processed-inverted-planar-solar-by-Chowdhury-Akhtaruzzaman/1989e25a31cf265aff03fcacc752607851780b70 (accessed June 12, 2022).
[42] Reduced Graphene Oxide as a Stabilizing Agent in Perovskite Solar Cells-Milić-2018- Advanced Materials Interfaces-Wiley Online Library, (n.d.). https://onlinelibrary.wiley.com/doi/abs/10.1002/admi.201800416 (accessed June 12, 2022).
[43] MoS2 Quantum Dot/Graphene Hybrids for Advanced Interface Engineering of a CH3NH3PbI3 Perovskite Solar Cell with an Efficiency of over 20% | ACS Nano, (n.d.). https://pubs.acs.org/doi/abs/10.1021/acsnano.8b05514 (accessed June 12, 2022).
[44] Z. Zhu, J. Ma, Z. Wang, C. Mu, Z. Fan, L. Du, Y. Bai, L. Fan, H. Yan, D.L. Phillips, and S. Yang, Efficiency enhancement of perovskite solar cells through fast electron extraction: the role of graphene quantum dots, J Am Chem Soc. 136 (2014) 3760–3763. https://doi.org/10.1021/ja4132246.
[45] A numerical study of high efficiency ultra-thin CdS/CIGS solar cells: African Journal of Science, Technology, Innovation and Development: Vol. 8, No. 4, (n.d.). https://www.tandfonline.com/doi/abs/10.1080/20421338.2015.1118929 (accessed June 13, 2022).
[46] Modeling thin‐film PV devices-Burgelman-2004-Progress in Photovoltaics: Research and Applications-Wiley Online Library, (n.d.). https://onlinelibrary.wiley.com/doi/10.1002/pip.524 (accessed June 13, 2022).
[47] M. Mostefaoui, H. Mazari, S. Khelifi, A. Bouraiou, and R. Dabou, Simulation of High Efficiency CIGS Solar Cells with SCAPS-1D Software, Energy Procedia. 74 (2015) 736–744. https://doi.org/10.1016/j.egypro.2015.07.809.
[48] R.T. Mouchou, T.C. Jen, O.T. Laseinde, and K.O. Ukoba, Numerical simulation and optimization of p-NiO/n-TiO2 solar cell system using SCAPS, Materials Today: Proceedings. 38 (2021) 835–841. https://doi.org/10.1016/j.matpr.2020.04.880.
[49] A. Slami, M. Bouchaour, and L. Merad, Numerical Study of Based Perovskite Solar Cells by SCAPS-1D, INTERNATIONAL JOURNAL OF ENERGY and ENVIRONMENT. 13 (2019) 5.
[50] Numerical development of eco-friendly Cs2TiBr6 based perovskite solar cell with all-inorganic charge transport materials via SCAPS-1D - ScienceDirect, (n.d.). https://www.sciencedirect.com/science/article/abs/pii/S0030402620315916 (accessed June 13, 2022).
[51] E. Widianto, E. Subama, N.M. Nursam, K. Triyana, and I. Santoso, Design and simulation of perovskite solar cell using graphene oxide as hole transport material, AIP Conference Proceedings. 2391 (2022) 090011. https://doi.org/10.1063/5.0073007.
[52] S.S. Mali and C.K. Hong, p-i-n/n-i-p type planar hybrid structure of highly efficient perovskite solar cells towards improved air stability: synthetic strategies and the role of p-type hole transport layer (HTL) and n-type electron transport layer (ETL) metal oxides, Nanoscale. 8 (2016) 10528–10540. https://doi.org/10.1039/C6NR02276F.
[53] N. Jensen, R.M. Hausner, R.B. Bergmann, J.H. Werner, and U. Rau, Optimization and characterization of amorphous/crystalline silicon heterojunction solar cells, Progress in Photovoltaics: Research and Applications. 10 (2002) 1–13. https://doi.org/10.1002/pip.398.
[54] Enhancing the open circuit voltage of the SnS based heterojunction solar cell using NiO HTL | Semantic Scholar, (n.d.). https://www.semanticscholar.org/paper/Enhancing-the-open-circuit-voltage-of-the-SnS-based-Ahmmed-Aktar/3ae20147f81aa5b95fc84216bc4a5bd37dfd5468 (accessed June 14, 2022).
[55] Investigating the performance of formamidinium tin-based perovskite solar cell by SCAPS device simulation - NASA/ADS, (n.d.). https://ui.adsabs.harvard.edu/abs/2020OptMa.10109738A/abstract (accessed June 13, 2022).
[56] Evidence of improved power conversion efficiency in lead-free CsGeI3 based perovskite solar cell heterostructure via scaps simulation: Journal of Vacuum Science & Technology B: Vol. 39, No. 1, (n.d.). https://avs.scitation.org/doi/10.1116/6.0000718 (accessed June 13, 2022).
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