A Thienothiophene‐Based Cation Treatment Allows Semitransparent Perovskite Solar Cells with Improved Efficiency and Stability (Adv. Funct. Mater. 42/2021)

Gunes, Ummugulsum; Celik, Esra Bag; Akgul, Cevahir Ceren; Koç, Mehmet Levent; Ameri, Mohsen; Uzuner, Bahri E.; Ghasemi, Milad; Sahiner, Mehmet; Yıldız, I.; Kaya, Hava Zekiye; Yerci, Selçuk; Günbaş, Görkem

doi:10.1002/adfm.202170314

Cited by 2 publications

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“…This can lead to interface recombination in the device, ultimately deteriorating performance. [ 32 ] Therefore, to prevent damage to the CTL from sputtering, an inorganic buffer layer, such as MoO x , [ 24,33,34 ] SnO x , [ 8,26 ] ZnO x , [ 35,36 ] WO x , [ 37,38 ] etc., [ 39,40 ] is typically deposited atop before TCO sputtering to form a composite transparent electrode (CTE).…”

Section: Introductionmentioning

confidence: 99%

Controlled Fabrication of Composite Transparent Electrodes for Semitransparent Perovskite Solar Cells with above 84% Fill Factor

Yu,

Liu,

et al. 2024

Solar RRL

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In the quest to develop efficient semitransparent perovskite solar cells (ST‐PSCs), the primary challenge lies in transparent electrode fabrication. n–i–p‐type ST‐PSCs often suffer from low fill factors (FF) and power conversion efficiency (PCE), attributed to the undesirable buffer layer/transparent conductive oxide combination of the transparent electrode. In this context, this study proposes an efficient composite transparent electrode (CTE) system comprising an ultrathin MoO3 buffer layer (5 nm) and low‐power sputtered indium zinc oxide (45 W–220 nm). The electrode demonstrates excellent compatibility with Spiro‐OMeTAD‐based devices, effectively addressing the low FF and PCE challenges of ST‐PSCs. Employing the new CTE, the best‐performing ST‐PSCs with the absorption edge at 1.57 eV achieve a remarkable PCE of 21.96% with an FF of up to 83.80%. More transparent ST‐PSCs with thickness‐modulated absorbers and average transmittance of 50.77% at 600–1200 nm wavelength result in a PCE of up to 20.91% with the highest known FF of 84.02%. This study presents a general and viable approach for fabricating efficient ST‐PSCs.

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Section: Introductionmentioning

confidence: 99%

Controlled Fabrication of Composite Transparent Electrodes for Semitransparent Perovskite Solar Cells with above 84% Fill Factor

Yu,

Liu,

et al. 2024

Solar RRL

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“…Recently, it has been demonstrated that in addition to improved stability, performance enhancement can be achieved in 3D/2D perovskites. [11] Different types of bulky organic cations have been widely reported in the literature and used for different purposes (i.e., 2D PSCs, [12] interfacial passivation layer(s) on bottom and/or top of 3D perovskite [13], [14] or 3D/2D PSCs [15] ) to fabricate highly stable and efficient PSCs over the last decade. Among them, multi-functional halogen-containing phenylalkylammonium cations (XPA * A + ; X: F, Cl, Br; P: phenyl; A * : alkyl chain either methyl or ethyl; A: ammonium) have a great reputation to develop high-performing PSCs via introducing these cations as either 2D Ruddlesden-Popper (RP) layer or interfacial protective layer on top of 3D perovskite.…”

Section: Introductionmentioning

confidence: 99%

Tuning 2D Perovskite Passivation: Impact of Electronic and Steric Effects on the Performance of 3D/2D Perovskite Solar Cells

Gozukara Karabag,

Karabag,

Gunes

et al. 2023

Advanced Energy Materials

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Surface passivation with 2D perovskites is a powerful strategy to achieve improved stability and performance in perovskite solar cells (PSCs). Various large organic cations have been successfully implemented, led by phenylethylammonium (PEA+) and its derivatives. However, systematic studies on large sets of cations to understand the effect of substituent position on 2D perovskite passivation and device performance are lacking. Herein, a collection of halogenated PEA+ iodide salts (x‐XPEAI where x: ortho (o), meta (m), para (p), X: F, Cl, Br) are synthesized by a facile method and deposited on top of 3D perovskite. The 2D perovskite layer formation is confirmed by X‐ray diffraction (XRD) and grazing‐incidence wide‐angle X‐ray scattering analyses for all cations, regardless of the nature and position of the halogen. Density functional theory analysis reveals that lower formation energies and higher interfacial dipoles achieved by m‐substituted cations are responsible for enhanced performance compared to their o‐ and p‐ counterparts. While the m‐BrPEAI‐treated device shows a champion efficiency of 23.42%, (VOC=1.13 V, FF=81.2%), considering average efficiencies, stability, and reproducibility, the treatment with m‐ClPEAI salt yields the best overall performance. This comprehensive study provides guidelines for understanding the influence of large cation modification on performance and stability of 3D/2D PSCs.

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A Thienothiophene‐Based Cation Treatment Allows Semitransparent Perovskite Solar Cells with Improved Efficiency and Stability (Adv. Funct. Mater. 42/2021)

Cited by 2 publications

References 0 publications

Controlled Fabrication of Composite Transparent Electrodes for Semitransparent Perovskite Solar Cells with above 84% Fill Factor

Controlled Fabrication of Composite Transparent Electrodes for Semitransparent Perovskite Solar Cells with above 84% Fill Factor

Tuning 2D Perovskite Passivation: Impact of Electronic and Steric Effects on the Performance of 3D/2D Perovskite Solar Cells

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