Advances and Potentials of NiO<sub><i>x</i></sub> Surface Treatments for p−i−n Perovskite Solar Cells

Tiwari, Nidhi; Dewi, Herlina Arianita; Erdenebileg, Enkhtur; Chauhan, Ram Narayan; Mathews, Nripan; Mhaisalkar, Subodh; Bruno, Annalisa

doi:10.1002/solr.202270032

Cited by 13 publications

(15 citation statements)

References 89 publications

(116 reference statements)

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“…For this purpose, NiO x was chosen, and devices were fabricated based on the same mixed solvent, as shown in Figure S3 and S4 (Supporting Information). [22] The mixed solvent followed the same trend as on PEDOT:PSS with increasing amounts of DMF. To understand the gradual increase in thickness with the increase in the ratio of DMF, the contact angle (CA) and surface energy of the solvents were measured for the five solvent conditions, as shown in Figure S5 (Supporting Information).…”

Section: Morphological Studiesmentioning

confidence: 66%

Impact of Ternary Solvent on the Grain Size and Defects of Perovskite Layer to Realize a Stable Morphology for Efficient Inverted Solar Cells

Lee,

Shah,

et al. 2023

Solar RRL

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Recent reports reveal that a smooth and uniform surface morphology can endow perovskite solar cells with excellent stability and remarkable power conversion efficiency (PCE). In this study, we employed a ternary solvent strategy using dimethylformamide (DMF), dimethyl‐sulfoxide (DMSO), and γ‐butyrolactone (GBL) to improve contact between the charge transporting layers and the perovskite layer. This approach yields enhanced surface morphology, charge extraction, and passivation. The thermally stable intermediates generated through the ternary solvent promote uniform MAPbI3 films with a smooth surface. These intermediates reduce surface roughness, increase grain size, and fill voids or defects in MAPbI3 due to a strong interaction of ternary solvent. The PCE with the ternary solvent (DMF:GBL:DMSO) increased to 20.23% compared to binary solvents of GBL:DMSO and DMF:DMSO. Additionally, ternary solvent engineering is beneficial from an industrial perspective for achieving a stable and uniform morphology of perovskite in large‐area device fabrication.This article is protected by copyright. All rights reserved.

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Section: Morphological Studiesmentioning

confidence: 66%

Impact of Ternary Solvent on the Grain Size and Defects of Perovskite Layer to Realize a Stable Morphology for Efficient Inverted Solar Cells

Lee,

Shah,

et al. 2023

Solar RRL

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“…So far, we have demonstrated the recyclability of NiO x NP ink for the purpose of creating Ni electrodes through laser-induced reductive sintering. However, in certain cases, extracting pure NiO x NPs (excluding solvents and additives) from NiO x NP ink may be necessary because NiO x itself is a semiconductor possessing unique electronic properties that can be utilized in various applications, such as p-type thin-film transistors, , hole injection/transport layers in organic light-emitting devices, , solar cells, , and physicochemical sensors. , To separate pure NiO x NPs from the NP ink waste, the waste underwent a washing process involving five rounds of ethanol addition followed by centrifugation at 3500 rpm for 15 min. The removal of PVP and CTAB was confirmed through FTIR measurements, which explored their binding conditions with NiO x NPs.…”

Section: Resultsmentioning

confidence: 99%

“…Here, we report a convenient and quick recycling process for reusing NiO x NP ink waste produced during the LDP process as well as recovering pure NiO x NPs from it. NiO x was selected as the material for demonstrating the recycling process in this study because it can be converted into functional Ni electrodes having high conductivity and excellent oxidation resistance through the LDP process, and NiO x itself is an intriguing material as a semiconductor with versatile applications in optoelectronic devices , and physicochemical sensors. , The recycling process recovered the NP ink waste through a simple and low-temperature process without relying on magnetic or vacuum processes or hazardous solvents. Various characterization techniques were utilized to characterize the recycled NiO x NPs and compare them with the as-synthesized NPs.…”

Section: Introductionmentioning

confidence: 99%

Recycling of Nanomaterial Ink Waste for Laser Digital Patterning Process

Binh Nam,

Kim,

Lee

2024

ACS Sustainable Chem. Eng.

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The laser digital patterning (LDP) process, also known as laser direct writing or laser selective patterning, offers a facile route to fabricating flexible/stretchable electronic devices from solution-processed thin films. Despite their various benefits, the deposition and washing steps associated with solution-processed thin films, specifically when using nanoinks such as nanoparticle (NP) ink and complex ink, inevitably produce nanomaterial waste. To address this issue, we propose a rapid and straightforward recycling process to reuse nanomaterial waste in the LDP process. The recycling process was demonstrated by retrieving NiO x NP ink waste generated during spin-coating and washing steps. Various solvents were utilized to retrieve and regenerate the nanoink. Remarkably, a recovery efficiency of over 90% was achieved for the NiO x NP ink even after multiple cycles. Comprehensive characterization was conducted on the recycled NP ink, comparing it with the originally synthesized NP ink using diverse analytical techniques. We also verified that the performance of the Ni electrode-based flexible heater manufactured using the recycled NiO x NP ink is nearly identical to that using the as-synthesized NP ink without any degradation. Additionally, we assessed the recyclability of Cu complex ink to determine which type of nanoink is more advantageous concerning material recycling for the LDP process. Our findings confirm that adopting NP ink presents an effective and sustainable strategy for diminishing nanomaterial waste during the LDP process.

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“…Other treatments of NiO x were previously applied to enhance the hole transport properties. [ 22,23,40 ] Most reports improved wettability and a better energy band alignment thanks to physical treatments like UV/ozone [ 22,23 ] or O 2 plasma. [ 39,41 ] However, plasma treatments mainly involve partial reports on the conditions of the treatments (e.g., pressure, power, frequency, or atmosphere), hindering reproducibility.…”

Section: Results and Analysismentioning

confidence: 99%

Nanocrystalline Flash Annealed Nickel Oxide for Large Area Perovskite Solar Cells

Ochoa‐Martinez,

Bijani‐Chiquero,

Martínez de Yuso

et al. 2023

Advanced Science

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The industrialization of perovskite solar cells requires adequate materials and processes to make them economically viable and environmentally sustainable. Despite promising results in terms of power conversion efficiency and operational stability, several hole‐transport layers currently in use still need to prove their industrial feasibility. This work demonstrates the use of nanocrystalline nickel oxide produced through flash infrared annealing (FIRA), considerably reducing the materials cost, production time, energy, and the amount of solvents required for the hole transport layer. X‐ray photoelectron spectroscopy reveals a better conversion to nickel oxide and a higher oxygen‐to‐nickel ratio for the FIRA films as compared to control annealing methods, resulting in higher device efficiency and operational stability. Planar inverted solar cells produced with triple cation perovskite absorber result in 16.7% power conversion efficiency for 1 cm2 devices, and 15.9% averaged over an area of 17 cm2.

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Advances and Potentials of NiO_x Surface Treatments for p−i−n Perovskite Solar Cells

Cited by 13 publications

References 89 publications

Impact of Ternary Solvent on the Grain Size and Defects of Perovskite Layer to Realize a Stable Morphology for Efficient Inverted Solar Cells

Impact of Ternary Solvent on the Grain Size and Defects of Perovskite Layer to Realize a Stable Morphology for Efficient Inverted Solar Cells

Recycling of Nanomaterial Ink Waste for Laser Digital Patterning Process

Nanocrystalline Flash Annealed Nickel Oxide for Large Area Perovskite Solar Cells

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Advances and Potentials of NiOx Surface Treatments for p−i−n Perovskite Solar Cells

Cited by 13 publications

References 89 publications

Impact of Ternary Solvent on the Grain Size and Defects of Perovskite Layer to Realize a Stable Morphology for Efficient Inverted Solar Cells

Impact of Ternary Solvent on the Grain Size and Defects of Perovskite Layer to Realize a Stable Morphology for Efficient Inverted Solar Cells

Recycling of Nanomaterial Ink Waste for Laser Digital Patterning Process

Nanocrystalline Flash Annealed Nickel Oxide for Large Area Perovskite Solar Cells

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Product

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Advances and Potentials of NiO_x Surface Treatments for p−i−n Perovskite Solar Cells