Ambient-air-solution-processed efficient and highly stable perovskite solar cells based on CH3NH3PbI3−xClx-NiO composite with Al2O3/NiO interfacial engineering

Wang, Yousheng; Mahmoudi, Tahmineh; Rho, Won‐Yeop; Yang, Hwa-Young; Seo, Seunghui; Bhat, Kiesar Sideeq; Ahmad, Rafiq; Hahn, Yoon‐Bong

doi:10.1016/j.nanoen.2017.08.047

Cited by 64 publications

(43 citation statements)

References 42 publications

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“…Al2O3, but deposited with different techniques. For example, atomic layer deposition ensures a very thin conformal layer (case a) compared to the rougher surface via solution processed nano-particle thin films here shown (case b) [4,[45][46][47][48]and better extracting properties. The enhanced interface area between perovskite and transport layers and improved interfacial growth of the perovskite, as well as reducing the defects/pinholes at the electrode, are likely the major reason for the reduction of charge recombination and improved electron extraction of the perovskite solar cells [15].…”

Section: Resultsmentioning

confidence: 91%

Low-Temperature Solution-Processed Thin SnO₂/Al₂O₃Double Electron Transport Layers Toward 20% Efficient Perovskite Solar Cells

Dagar

Castro‐Hermosa

Lucarelli

et al. 2019

IEEE J. Photovoltaics

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We present planar perovskite solar cells (PSCs) incorporating thin SnO2/Al2O3 double electron transport layers between the perovskite and an indium tin oxide (ITO) bottom electrode. When measured under 1 sun illumination, we obtained a maximum power conversion efficiency (PCE) of 20.1% and a steady state efficiency of 17.8% for the best cell. These values were ~ 20-30% higher in relative terms than that of cells with SnO2 only (i.e. a maximum PCE of 15.3% and a steady state PCE of 14.9%). Insertion of the thin UV-irradiated solution-processed nanoparticle Al2O3 interlayer effectively enhanced the wettability of the electron transport layer, provided enhanced interface area, as well as a lower work function, leading to improved charge extraction. Incorporation of an Al2O3 layer between the perovskite and SnO2 layers also improved the rectification ratios of the diodes as well as both series and shunt resistances. Our devices are fabricated using fully solution-processed transport and active semiconducting layers processed at low temperatures (≤ 150 °C).

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Section: Resultsmentioning

confidence: 91%

Low-Temperature Solution-Processed Thin SnO₂/Al₂O₃Double Electron Transport Layers Toward 20% Efficient Perovskite Solar Cells

Dagar

Castro‐Hermosa

Lucarelli

et al. 2019

IEEE J. Photovoltaics

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“…Metal oxides are often utilized as interface modification layers in PSCs. In 2017, Wang et al reported an efficient PSC engineering by inserting Al 2 O 3 /NiO layers in between the ETL and absorber layer [55], and the device structure is illustrated in Figure 6a. From the device structure, we can see that the presence of NiO accelerates the transporting of hole, and insulating Al 2 O 3 limits the electrons within the perovskite layer, so that the transporting of electrons can be quite effective.…”

Section: Modification Of Interfacementioning

confidence: 99%

“…(a) Schematic of device configuration of PSC with Al 2 O 3 /NiO interlayer and carrier working paths[55]; (b) Schematic illustration of alkali-TFSI salt-doped mesoporous layer, and the surface states bonding with electron transport layer (ETL) and perovskite[60]; (c) Schematic illustrations of perovskite film formation on organic hole transport layer (HTLs) with and without the interfacial compatibilizer PFN, and corresponding photographs and SEM images[62].…”

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confidence: 99%

Major Impediment to Highly Efficient, Stable and Low-Cost Perovskite Solar Cells

Zhang

et al. 2018

Metals

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Organic–inorganic hybrid perovskite solar cells (PSCs) have made immense progress in recent years, owing to outstanding optoelectronic properties of perovskite materials, such as high extinction coefficient, carrier mobility, and low exciton binding energy. Since the first appearance in 2009, the efficiency of PSCs has reached 23.3%. This has made them the most promising rival to silicon-based solar cells. However, there are still several issues to resolve to promote PSCs’ outdoor applications. In this review, three crucial aspects of PSCs, including high efficiency, environmental stability, and low-cost of PSCs, are described in detail. Recent in-depth studies on different aspects are also discussed for better understanding of these issues and possible solutions.

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“…Surface modification of MAPI by the addition of hydrophobic 4-tert-butylpyridine showed enhanced stability for the PSCs at even >75% RH in ambient air [13]. A composite-based interface engineered PSCs including a Al 2 O 3 /NiO 2 interface in the PSC device configuration showed a high PCE of 18.14% and longterm stability under an ambient atmosphere [14]. Air-assisted flow annealed MAPI film-based PSCs showed a promising efficiency of 13.28% under ambient air [15].…”

Section: Introductionmentioning

confidence: 99%

A modified high-temperature vapour deposition technique for fabricating $$\hbox {CH}_{3}\hbox {NH}_{3}\hbox {PbI}_{3}$$ thin films under an ambient atmosphere

et al. 2019

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A modified two-step deposition technique was performed by vapour depositing methylammonium iodide (MAI) on lead iodide (PbI 2) films to fabricate good quality methylammonium lead iodide (MAPI) thin films under an ambient atmosphere, and their properties were compared with conventional two-step solution processed MAPI thin films. Scanning electron microscopy results depicted that the MAI vapour-processed films have a uniform coverage and planar surface compared with the non-uniformly distributed granule-like morphology of the solution-processed MAPI film. X-ray diffraction results confirm that the vapour-processed films have better crystallinity compared to the conventional solutionprocessed MAPI thin films. An enhancement in the optical absorption and emission was observed for the vapour-processed films. The higher processing temperature of the modified-vapour deposition eliminates the effect of moisture during the ambient atmosphere processing of the MAPI films.

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Ambient-air-solution-processed efficient and highly stable perovskite solar cells based on CH3NH3PbI3−xClx-NiO composite with Al2O3/NiO interfacial engineering

Cited by 64 publications

References 42 publications

Low-Temperature Solution-Processed Thin SnO₂/Al₂O₃Double Electron Transport Layers Toward 20% Efficient Perovskite Solar Cells

Low-Temperature Solution-Processed Thin SnO₂/Al₂O₃Double Electron Transport Layers Toward 20% Efficient Perovskite Solar Cells

Major Impediment to Highly Efficient, Stable and Low-Cost Perovskite Solar Cells

A modified high-temperature vapour deposition technique for fabricating $$\hbox {CH}_{3}\hbox {NH}_{3}\hbox {PbI}_{3}$$ thin films under an ambient atmosphere

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Ambient-air-solution-processed efficient and highly stable perovskite solar cells based on CH3NH3PbI3−xClx-NiO composite with Al2O3/NiO interfacial engineering

Cited by 64 publications

References 42 publications

Low-Temperature Solution-Processed Thin SnO2/Al2O3Double Electron Transport Layers Toward 20% Efficient Perovskite Solar Cells

Low-Temperature Solution-Processed Thin SnO2/Al2O3Double Electron Transport Layers Toward 20% Efficient Perovskite Solar Cells

Major Impediment to Highly Efficient, Stable and Low-Cost Perovskite Solar Cells

A modified high-temperature vapour deposition technique for fabricating $$\hbox {CH}_{3}\hbox {NH}_{3}\hbox {PbI}_{3}$$ thin films under an ambient atmosphere

Contact Info

Product

Resources

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Low-Temperature Solution-Processed Thin SnO₂/Al₂O₃Double Electron Transport Layers Toward 20% Efficient Perovskite Solar Cells

Low-Temperature Solution-Processed Thin SnO₂/Al₂O₃Double Electron Transport Layers Toward 20% Efficient Perovskite Solar Cells