Lead free double perovskite oxides Ln 2 NiMnO 6 (Ln = La, Eu, Dy, Lu), a new promising material for photovoltaic application

Sheikh, Md. Sariful; Ghosh, Dibyendu; Dutta, Alo; Bhattacharyya, Sayan; Sinha, T.P.

doi:10.1016/j.mseb.2017.08.027

Cited by 105 publications

(22 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It is expected that a further optimization of the film deposition will allow for doubling the efficiency. The low PCE of the oxides, despite their interesting bandgaps, is mainly due to their low currents and fill factor indicating poor charge transport …”

Section: Pce Improvement Of Inorganic Pscsmentioning

confidence: 99%

Review on Recent Progress of All‐Inorganic Metal Halide Perovskites and Solar Cells

2019

View full text Add to dashboard Cite

perovskite-based solar cells (PSCs) have reached a certified power conversion efficiency (PCE) of 24.2% in 2019, [19] which is comparable with that of copper indiumgallium diselenide (CIGS) [20] and siliconbased solar cells.The general chemical formula of a perovskite compound can be described as ABX 3 , where A is a monovalent cation (methylammonium (CH 3 NH 3 + (MA + )), formamidinium (CH(NH 2 ) 2 + (FA + )), cesium, etc.), B is a divalent metal cation (Pb 2+ , Sn 2+ , etc.), and X is occupied by a halide counterion (Cl − , Br − , and I − ). It is possible to form mixed compounds with respect to each site. The commercialization of hybrid perovskites requires materials that are thermodynamically stable and can withstand various thermal stressing tests, including natural daynight cycling and exposure to full sunlight. The organic parts in perovskites (such as MA + or FA + ) cannot endure high temperature and thus presents a longterm stability issue for devices under operation. Among the various degradation and decomposition pathways of hybrid perovskite, which depend on environmental factors such as humidity and illumination, a common theme is the low thermal stability of these perovskites, even in inert atmosphere. [21][22][23] For example, release of CH 3 NH 2 has been reported in MA-based perovskite films at temperatures of 80 °C, indicating decomposition of MA. [24] However, standard operational conditions for photovoltaics require materials and devices to be stable at this temperature. Therefore, the replacement of the organic parts by inorganic components (Cs + ) is expected to dramatically increase the long-term stability. [23,25,26] It has been widely reported that even a small amount of cesium can greatly enhance the thermal stability of organic-inorganic hybrid perovskites. [27,28] For example, FA 0.83 Cs 0.17 Pb(I 0.6 Br 0.4 ) 3 demonstrates both thermal and moisture stability, and stability to operation in the presence of oxygen. [29] An early report by Hodes [30] shows that thin films of the inorganic perovskite CsPbBr 3 can be prepared with a two-step method. The solar cells employing these layers yield an impressive high open circuit voltage (V oc ) of 1.32 V. These results, as the authors emphasize, indicate that the organic moiety is not an essential component in constructing high-performance perovskite materials and devices. Since then, with numerous publications each year, the inorganic PSCs research community is keeping highly active, including novel deposition methods All-inorganic perovskites are considered to be one of the most appealing research hotspots in the field of perovskite photovoltaics in the past 3 years due to their superior thermal stability compared to their organic-inorganic hybrid counterparts. The power-conversion efficiency has reached 17.06% and the number of important publications is ever increasing. Here, the progress of inorganic perovskites is systematically highlighted, covering materials design, preparation of high-quality perovskite films, and avoidance of phase in...

show abstract

Section: Pce Improvement Of Inorganic Pscsmentioning

confidence: 99%

Review on Recent Progress of All‐Inorganic Metal Halide Perovskites and Solar Cells

2019

View full text Add to dashboard Cite

show abstract

“…Double perovskites R 2 BB′O 6 (R is a rare-earth ion; B and B′ are transition metals) are important materials today because of their rich physical properties and technological application. − Multifunctional properties of these structures include colossal magnetoresistance, magnetocapacitance, and multiferroicity. Spin phonon coupling gives rise to such exotic properties in R 2 BB′O 6 compounds.…”

Section: Introductionmentioning

confidence: 99%

Role of Antisite Disorder, Rare-Earth Size, and Superexchange Angle on Band Gap, Curie Temperature, and Magnetization of R₂NiMnO₆ Double Perovskites

Nasir¹,

Kumar²,

Patra

et al. 2019

ACS Appl. Electron. Mater.

View full text Add to dashboard Cite

Homogeneous solid solutions of sol−gel-prepared R 2 NiMnO 6 (R = La, Pr, Nd, Sm, Gd, Tb, Dy, Y, and Ho) double perovskites crystallize in a B-site-ordered monoclinic structure (P2 1 /n space group). Monoclinic distortion enhances with decreasing R 3+ ionic radii (r R 3+ ). The magnetic ordering temperature (T C ) decreases from 270 K for La 2 NiMnO 6 to 80 K for Ho 2 NiMnO 6 as r R 3+ decreases from 1.16 Å (La 3+ ) to 1.02 Å (Ho 3+ ). An additional magnetic anomaly is observed in Nd 2 NiMnO 6 , Sm 2 NiMnO 6 , Tb 2 NiMnO 6 , and Dy 2 NiMnO 6 at lower temperatures, which originates from the 3d−4f coupling between Mn−Ni and Nd 3+ /Sm 3+ /Tb 3+ /Dy 3+ magnetic moments. Further, high saturation magnetization is achieved for all samples, indicating that they are atomically ordered and have less antisite disorders. Upon a decrease in the size of R 3+ , the local structure shows an expansion of NiO 6 octahedra and almost unchanged of MnO 6 octahedra. X-ray-absorption near-edge spectroscopy reveals a majority of Ni 2+ and Mn 4+ ions in all samples. Softening of phonon modes results in the elongation of the Ni/Mn−O bond length. Finally, a correlation among lattice parameters, structural distortion, octahedral tilting, superexchange angle, electronic band gap, Curie temperature, and the rare-earth ionic radius is established.

show abstract

“…EIS measurements were performed to obtain further insights into the depletion regions of the p−n device under study and to further understand the low generated photocurrent. Previous reported EIS measurements on lead free perovskite oxides have been performed at Voc conditions ( Sariful Sheikh et al, 2017 ). Our trials to measure at Voc conditions resulted to low signal and high noise from moderate to high frequencies that do not enabled the analysis of EIS parameters.…”

Section: Resultsmentioning

confidence: 99%

All-Inorganic p−n Heterojunction Solar Cells by Solution Combustion Synthesis Using N-type FeMnO3 Perovskite Photoactive Layer

et al. 2021

View full text Add to dashboard Cite

This study outlines the synthesis and physicochemical characteristics of a solution-processable iron manganite (FeMnO3) nanoparticles via a chemical combustion method using tartaric acid as a fuel whilst demonstrating the performance of this material as a n-type photoactive layer in all-oxide solar cells. It is shown that the solution combustion synthesis (SCS) method enables the formation of pure crystal phase FeMnO3 with controllable particle size. XRD pattern and morphology images from TEM confirm the purity of FeMnO3 phase and the relatively small crystallite size (∼13 nm), firstly reported in the literature. Moreover, to assemble a network of connected FeMnO3 nanoparticles, β-alanine was used as a capping agent and dimethylformamide (DMF) as a polar aprotic solvent for the colloidal dispersion of FeMnO3 NPs. This procedure yields a ∼500 nm thick FeMnO3 n-type photoactive layer. The proposed method is crucial to obtain functional solution processed NiO/FeMnO3 heterojunction inorganic photovoltaics. Photovoltaic performance and solar cell device limitations of the NiO/FeMnO3-based heterojunction solar cells are presented.

show abstract

Lead free double perovskite oxides Ln 2 NiMnO 6 (Ln = La, Eu, Dy, Lu), a new promising material for photovoltaic application

Cited by 105 publications

References 54 publications

Review on Recent Progress of All‐Inorganic Metal Halide Perovskites and Solar Cells

Review on Recent Progress of All‐Inorganic Metal Halide Perovskites and Solar Cells

Role of Antisite Disorder, Rare-Earth Size, and Superexchange Angle on Band Gap, Curie Temperature, and Magnetization of R₂NiMnO₆ Double Perovskites

All-Inorganic p−n Heterojunction Solar Cells by Solution Combustion Synthesis Using N-type FeMnO3 Perovskite Photoactive Layer

Contact Info

Product

Resources

About

Lead free double perovskite oxides Ln 2 NiMnO 6 (Ln = La, Eu, Dy, Lu), a new promising material for photovoltaic application

Cited by 105 publications

References 54 publications

Review on Recent Progress of All‐Inorganic Metal Halide Perovskites and Solar Cells

Review on Recent Progress of All‐Inorganic Metal Halide Perovskites and Solar Cells

Role of Antisite Disorder, Rare-Earth Size, and Superexchange Angle on Band Gap, Curie Temperature, and Magnetization of R2NiMnO6 Double Perovskites

All-Inorganic p−n Heterojunction Solar Cells by Solution Combustion Synthesis Using N-type FeMnO3 Perovskite Photoactive Layer

Contact Info

Product

Resources

About

Role of Antisite Disorder, Rare-Earth Size, and Superexchange Angle on Band Gap, Curie Temperature, and Magnetization of R₂NiMnO₆ Double Perovskites