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DC Field | Value | Language |
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dc.contributor.author | Srivastava, Abhishek | en_US |
dc.contributor.author | Kasliwal, Manas | en_US |
dc.contributor.author | Shirage, Parasharam Maruti | en_US |
dc.date.accessioned | 2025-07-09T13:48:02Z | - |
dc.date.available | 2025-07-09T13:48:02Z | - |
dc.date.issued | 2025 | - |
dc.identifier.citation | Srivastava, A., Kasliwal, M., & Shirage, P. M. (2025). From HTL to HTL-free: Experimental and numerically modelled performance dynamics of Cs2AgBiBr6 double perovskite solar cells. Solar Energy, 298. https://doi.org/10.1016/j.solener.2025.113733 | en_US |
dc.identifier.issn | 0038-092X | - |
dc.identifier.other | EID(2-s2.0-105008892385) | - |
dc.identifier.uri | https://dx.doi.org/10.1016/j.solener.2025.113733 | - |
dc.identifier.uri | https://dspace.iiti.ac.in:8080/jspui/handle/123456789/16435 | - |
dc.description.abstract | For addressing the global energy crisis, this experimental and numerical study investigates HTL-free Cs2AgBiBr6 (CABB) double perovskite solar cells (DPSCs), highlighting their lead-free, non-toxic, and thermally stable properties. The FTO/TiO2/CABB/Carbon-structured DPSCs showed >95 % PCE retention (1.63 % to 1.57 %) after 200 h. The underlying charge transport dynamics reveal a high RRec (1625 Ω), long τe (0.226 s), and efficient ηcce (89.65 %). Additionally, the estimated Ln (3.86 µm) and Deff (27.33 µm2/s) support the observed retention in device performance, confirming that interfacial stability and minimal charge recombination govern the long-term durability of the HTL-free DPSCs. However, the low photovoltaic (PV) performance (JSC = 9.41 mA/cm2, VOC = 456.13 mV, FF = 0.38, and PCE = 1.63 %) is concerning for the futuristic technological development. Therefore, numerical simulations for optimizing the HTL and HTL-free DPSCs consisting of four different ETLs (TiO2, SnO2, WO3, and ZnO) were conducted using SCAPS-1D, revealing ZnO as the optimal ETL for both HTL and HTL-free DPSCs. For HTL-DPSCs, ZnO achieved the highest performance (PCE: 27.30 %, JSC: 23.83 mA/cm2, VOC: 1.29 V, FF: 0.89), followed by TiO2 (25.48 %), WO3 (25.42 %), and SnO2 (22.63 %). Additionally, the HTL-free DPSCs showed overall ∼4 % reduced efficiency due to higher interfacial recombination and limited charge extraction, with ZnO again leading (PCE: 23.09 %, JSC: 23.80 mA/cm2, VOC: 1.15 V, FF: 0.85). This study highlights the optimization strategy that could bridge the simulation-experiment performance gap, positioning CABB as a leading lead-free double perovskite material for efficient and sustainable PV solutions. © 2025 International Solar Energy Society | en_US |
dc.language.iso | en | en_US |
dc.publisher | Elsevier Ltd | en_US |
dc.source | Solar Energy | en_US |
dc.subject | (ZnO/TiO<sub>2</sub>/WO<sub>3</sub>/SnO<sub>2</sub>)-ETLs | en_US |
dc.subject | Cs<sub>2</sub>AgBiBr<sub>6</sub> | en_US |
dc.subject | Double perovskite solar cells | en_US |
dc.subject | HTL-free PVs | en_US |
dc.subject | Lead-free PV solutions | en_US |
dc.subject | SCAPS-1D | en_US |
dc.title | From HTL to HTL-free: Experimental and numerically modelled performance dynamics of Cs2AgBiBr6 double perovskite solar cells | en_US |
dc.type | Journal Article | en_US |
Appears in Collections: | Department of Metallurgical Engineering and Materials Sciences |
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