A numerical approach of HTL-free FA0.75Cs0·25SnI3/KSnI3 based heterojunction perovskite solar cell with various ETLs and HTLs using SCAPS-1D

IF 4.9 3区材料科学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Journal of Physics and Chemistry of Solids Pub Date : 2025-09-29 DOI:10.1016/j.jpcs.2025.113245

P. Bhuvaneswari , P. Sriramalakshmi

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引用次数: 0

Abstract

In this study, a lead-free tin (Sn) based cesium doped formamidinium tin iodide and potassium tin iodide FA_0.75Cs₀_·₂₅SnI₃/KSnI₃ based hole transport layer (HTL) free heterojunction is modeled to enhance the overall performance of lead-free based PSCs. The photovoltaic (PV) performance of FTO/WS₂/FA_0.75Cs₀_·₂₅SnI₃/KSnI₃/C based lead-free heterojunction solar cells is examined using one-dimensional solar cell capacitance simulator (SCAPS-1D) software combined with five well-known electron transport layers (ETLs) (WS₂, C₆₀, ZnOS, PCBM and CdS). Based on simulation results, CdS performs the best among the various ETLs. Based on the analysis, CdS is used as the ETL in the HTL-free HPSC structure and the impact of the thickness and defect density of the absorption layer, temperature and various metal electrodes is completely analyzed by using SCAPS-1D. The findings of this study suggest that FTO/CdS/FA_0.75Cs₀_·₂₅SnI₃/KSnI₃/C based HTL-free HPSC structures are low cost, simpler to fabricate and enhance the overall performance of solar cells. As a result, this optimized HTL-free heterojunction based PSC structure is much better than the single-junction based PSC devices. Finally, various HTL materials (Spiro-OMeTAD, CuSCN, NiO, CuI and P3HT) are applied in the optimized HTL-free HPSC structure. Furthermore, the optimized HTL-free structure has achieved an efficiency of 32.59 %, with slight variations when compared to HTL-based structures Spiro-OMeTAD (32.34 %), CuSCN (32.57 %), NiO (32.61 %), CuI (32.62 %) and P3HT (32.58 %). This comparative study indicates that the HTL-free FTO/CdS/FA_0.75Cs₀_·₂₅SnI₃/KSnI₃/C based structure is cost-effective, simpler to fabricate and offers comparable efficiency to the HTL-based structure.

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基于SCAPS-1D的具有不同ETLs和HTLs的无html的FA0.75Cs0·25SnI3/KSnI3异质结钙钛矿太阳能电池的数值研究

为了提高无铅PSCs的整体性能，本研究建立了无铅锡（Sn）基铯掺杂甲酸氨基碘化锡和碘化钾的FA0.75Cs0·25SnI3/KSnI3基空穴传输层（HTL）无异质结模型。利用一维太阳能电池电容模拟器（SCAPS-1D）软件，结合五种著名的电子传输层（WS2、C60、ZnOS、PCBM和CdS），对FTO/WS2/FA0.75Cs0·25SnI3/KSnI3/C基无铅异质结太阳能电池的光伏（PV）性能进行了测试。仿真结果表明，CdS在各种etl中性能最好。在分析的基础上，采用CdS作为无html HPSC结构的ETL，利用SCAPS-1D全面分析了吸收层厚度、缺陷密度、温度和各种金属电极对ETL的影响。本研究结果表明，基于FTO/CdS/FA0.75Cs0·25SnI3/KSnI3/C的无html HPSC结构成本低，制作简单，提高了太阳能电池的整体性能。因此，这种优化的基于html的无异质结的PSC结构比基于单结的PSC器件要好得多。最后，将各种html材料（Spiro-OMeTAD、CuSCN、NiO、CuI和P3HT）应用于优化的无html HPSC结构。此外，优化后的无html结构的效率为32.59%，与基于html的结构Spiro-OMeTAD（32.34%）、CuSCN（32.57%）、NiO（32.61%）、CuI（32.62%）和P3HT（32.58%）相比略有差异。对比研究表明，基于FTO/CdS/FA0.75Cs0·25SnI3/KSnI3/C的无html结构具有成本效益高、制作简单、效率与基于html的结构相当的优点。

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来源期刊

Journal of Physics and Chemistry of Solids 工程技术-化学综合

CiteScore

7.80

自引率

2.50%

发文量

605

审稿时长

40 days

期刊介绍： The Journal of Physics and Chemistry of Solids is a well-established international medium for publication of archival research in condensed matter and materials sciences. Areas of interest broadly include experimental and theoretical research on electronic, magnetic, spectroscopic and structural properties as well as the statistical mechanics and thermodynamics of materials. The focus is on gaining physical and chemical insight into the properties and potential applications of condensed matter systems. Within the broad scope of the journal, beyond regular contributions, the editors have identified submissions in the following areas of physics and chemistry of solids to be of special current interest to the journal: Low-dimensional systems Exotic states of quantum electron matter including topological phases Energy conversion and storage Interfaces, nanoparticles and catalysts.