Tailoring the PEDOT:PSS hole transport layer by electrodeposition method to improve perovskite solar cells

Erazo, Eider A.; Ortiz, Pablo; Cortés, María Teresa González

doi:10.1016/j.electacta.2022.141573

Cited by 6 publications

(7 citation statements)

References 68 publications

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“…However, despite all the advantages of using PEDOT:PSS, it leads to the degradation of the device due to the hydrophilic and acidic nature of the PSS. [91] Consequently, the degradation of the device results in solar cell power losses due to the recombination of photogenerated charge carriers, which leads to a great reduction in the fill factor (FF) and short current density (J SC ). [69] The performance can be enhanced by doping, however, highly doped PEDOT:PSS leads to strong interfacial recombination resulting in low performance and stability.…”

Section: Poly(34-ethylenedioxythiophene) Polystyrene Sulfonate (Pedot...mentioning

confidence: 99%

“…The highly doped PEDOT:PSS is problematic as the electrons are being blocked from reaching the perovskite layer, as doping introduces energy levels between the PEDOT's bandgap. The introduction of these energy levels hinders the LUMO's ability to block the electrons, increasing the recombination in the cell [91] . Therefore, the level of doping needs to be tailored accordingly.…”

Section: Hole‐transport Materials (Htms)mentioning

confidence: 99%

“…The introduction of these energy levels hinders the LUMO's ability to block the electrons, increasing the recombination in the cell. [91] Therefore, the level of doping needs to be tailored accordingly.…”

Section: Poly(34-ethylenedioxythiophene) Polystyrene Sulfonate (Pedot...mentioning

confidence: 99%

See 2 more Smart Citations

Constructing Hybrid Semiconductor Thin‐Films for Advanced Photovoltaics

Orange,

Tambwe,

Arendse

et al. 2024

ChemistrySelect

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This comprehensive review explores recent advancements in creating hybrid semiconductor perovskite thin films, driving progress in photovoltaic technology. It covers aspects like material design, fabrication techniques, and device structures, all aimed at addressing challenges and guiding the way to efficient and sustainable solar energy conversion. The review reveals the intricate interplay between energy conversion, device processing, and stability enhancement, providing context to the evolving field of photovoltaics. While hybrid metal halide perovskites exhibit innovation, challenges in stability and reproducibility persist. A collective push for progress drives scientific efforts, involving the optimization of absorber layers, innovative deposition methods, and strategic interlayer integration. The synthesis of research and insights traces the evolution of perovskite technology, from the early days of methylammonium lead iodide (MAPbI3) to a symphony of innovation. With determination and creativity, hybrid semiconductor perovskite thin films emerge as key players in shaping the future of solar energy conversion.

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Section: Poly(34-ethylenedioxythiophene) Polystyrene Sulfonate (Pedot...mentioning

confidence: 99%

Section: Hole‐transport Materials (Htms)mentioning

confidence: 99%

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Constructing Hybrid Semiconductor Thin‐Films for Advanced Photovoltaics

Orange,

Tambwe,

Arendse

et al. 2024

ChemistrySelect

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“…As mentioned previously, the primary component to achieve high cell performance of inverted perovskite solar cells is the hole-transporting material (HTM), which enables the development of perovskite films with decreased defect density to minimize charge recombination and optimum frontier orbital energy levels to enhance charge extraction . There are many common HTL materials, both organic and inorganic, namely, PEDOT:PSS, , PTAA, , NiO x, CuI, V 2 O 5 , , etc . Among the several inorganic hole-transporting studied samples in the p-i-n configuration, the NiO x HTMs are all focused on devices with an efficiency approximately around 20% .…”

Section: Introductionmentioning

confidence: 99%

Passivation of Inverted Perovskite Solar Cells by Trifluoromethyl-Group-Modified Triphenylamine Dibenzofulvene Hole Transporting Interfacial Layers

et al. 2023

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In this work, we synthesized trifluoromethyl group series modified triphenylamine dibenzofulvenes, named as CC-1–3, as a hole transporting interfacial layer to obtain well-matched energy levels and long-term stability features in NiOx-based inverted perovskite solar cells. The optical and thermal properties of these new compounds were investigated. All the compounds were combined with NiOx and formed layer by layer as hole transporting layers (HTLs). The morphology, energy level, and charge transfer resistance were all compared. The NiOx/CC-3 bilayer-based architecture improved the energy level alignment, film morphology, crystallinity, and hole transportation, allowing for a high-quality perovskite layer and interfacial contact behavior. As a result, this inverted cell significantly improved open-circuit voltage (V OC), short current density (J SC), fill factor (FF), and power conversion efficiency (PCE) values up to 21.66 mA cm–2, 1.105 V, 79.33%, and 19.82%, respectively. Remarkably, the NiOx/CC-3 device had negligible hysteresis and long-term stability, retaining over 90% of its original efficiencies under argon and over 80% in the ambient atmosphere after 40 days. This paper shows a new chemical design, particularly for the trifluoromethyl group effect, and a complete understanding of the bilayer HTL technique and its promise for producing efficient cell performance.

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“…The most common PSC device architecture has the following structure, mesoporous n-i-p: FTO/TiO 2 /meso-TiO 2 /perovskite/Spiro-OMeTAD/Au; planar n-i-p: FTO or ITO/TiO 2 / perovskite/Spiro-OMeTAD/Au; inverted planar p-i-n: ITO/poly[bis(4-phenyl) (2,4,6-trimethylphenyl)amine] (PTAA)/perovskite/C 60 /Ag or Al. Even though they have different device architectures, a few of the HTMs, for example, Spiro-OMeTAD [40], PTAA [41][42][43], PEDOT: PSS [44][45][46], and P3HT [47][48][49], are repeatedly used in the perovskite solar cells. In the case of inorganic materials, NiO [50][51][52][53] is used most commonly.…”

Section: Introductionmentioning

confidence: 99%

Recent studies on small molecular and polymeric hole‐transporting materials for high‐performance perovskite solar cells

Velusamy,

Yau,

Liu

et al. 2023

J Chinese Chemical Soc

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A decade of significant research has led to the emergence of photovoltaic solar cells based on perovskites that have achieved an exceptionally high‐power conversion efficiency of 26.08%. A key breakthrough in perovskite solar cells (PSCs) occurred when solid hole‐transporting materials (HTMs) replaced liquid electrolytes in dye‐sensitized solar cells (DSSCs), because HTMs play a crucial role in improving photovoltaic performance as well as cell stability. This review is mainly focused on the HTMs that are responsible for hole transport and extraction in PSCs, which is one of the crucial components for efficient devices. Here, we have reviewed small molecular as well as polymeric HTMs that have been reported in the last two years and discussed their performance based on the analysis of their molecular architectures. Finally, we include a perspective on the molecular engineering of new functional HTMs for highly efficient stable PSCs.

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Tailoring the PEDOT:PSS hole transport layer by electrodeposition method to improve perovskite solar cells

Cited by 6 publications

References 68 publications

Constructing Hybrid Semiconductor Thin‐Films for Advanced Photovoltaics

Constructing Hybrid Semiconductor Thin‐Films for Advanced Photovoltaics

Passivation of Inverted Perovskite Solar Cells by Trifluoromethyl-Group-Modified Triphenylamine Dibenzofulvene Hole Transporting Interfacial Layers

Recent studies on small molecular and polymeric hole‐transporting materials for high‐performance perovskite solar cells

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