Effect of Sr2+ doping on optical, thermal and photocatalytic behaviour of CsPbBr3

Mondal, Arindam; Lata, Akash; Gupta, Satyajit

doi:10.1016/j.matlet.2021.131314

Cited by 11 publications

(7 citation statements)

References 18 publications

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“…Arindam et al successfully doped Sr into CsPbBr 3 , resulting in an approximately two-fold increase in the photocurrent density for CsPb 0.95 Sr 0.05 Br 3 compared with pure CsPbBr 3 . 21 The Sr doping can also greatly improve the photoluminescence quantum yield (PLQY) of the mixed materials. 22 The red LEDs fabricated by Sr: CsPbI 3 quantum dots exhibited high brightness (1250 cd m −2 at 9.2 V) and good operational stability (L 50 > 2 h driven by 6 V).…”

Section: Introductionmentioning

confidence: 99%

Influence of Sr doping on the photoelectronic properties of CsPbX₃ (X = Cl, Br, or I): a DFT investigation

Zhang

Xiang

et al. 2023

Phys. Chem. Chem. Phys.

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Section: Introductionmentioning

confidence: 99%

Influence of Sr doping on the photoelectronic properties of CsPbX₃ (X = Cl, Br, or I): a DFT investigation

Zhang

Xiang

et al. 2023

Phys. Chem. Chem. Phys.

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“…Inorganic hetero‐structured composite semiconductor system was also examined as efficient photocatalyst [28] . Photocatalytic activity of CsPbBr 3 , in the form of nanoparticle [29,30] and thin‐film [31] were studied earlier in a non‐aqueous medium. Huang et al [32] .…”

Section: Introductionmentioning

confidence: 99%

“…Layered 2D perovskites [a] Crystal System Space Group (BA) 2 PbI 4 [21] Orthorhombic Pbca (PEA) 2 PbCl 4 [22] Triclinic P � 1 (PEA) 2 Pbl 4 [22] Monoclinic C2/m (BDA) 2 PbI 4 [23] Orthorhombic Pbca (FPEA) 2 PbI 4 [24] Monoclinic P2 1 /a (NMA) 2 PbBr 4 [11] Orthorhombic Pbca was also examined as efficient photocatalyst. [28] Photocatalytic activity of CsPbBr 3 , in the form of nanoparticle [29,30] and thinfilm [31] were studied earlier in a non-aqueous medium. Huang et al [32] reported photocatalytic activity of FAPbBr 3 /TiO 2 -based composite systems towards oxidation of benzylic alcohols in toluene solution.…”

Section: Introductionmentioning

confidence: 99%

Effect of ‘Fluorophenylammonium’ and ‘Fluorophenethylammonium’ as Spacer on the Photo(electro)chemical and Photocatalytic Behaviour of Mixed Halide Based Layered Perovskites

Mondal

Gupta

2022

ChemistrySelect

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Two-dimensional lead (Pb 2 + ) based halide perovskites (2D-PbHaPs) with a structural formula of R 2 PbX 4 (where R = organic amine and X = Cl, Br or I) represents a 'layered' structure, having better stability compared to three-dimensional lead halide perovskites (3D-PbHaPs) such as APbX 3 (where A = methylammonium and X = Cl, Br or I). The choice of 'R' site, which acts as a 'spacer' in the PbX 6 4À octahedral framework, is critical in determining the optical and electrical properties of the 2D-PbHaP based semiconductors. In this study, two different spacers [4-fluorophenethylammonium-FC 6 H 4 À CH 2 À CH 2 À NH 3 + ; abbreviated as FPEA and 4-fluorophenylammonium-FC 6 H 4 À NH 3 + ; abbreviated as FPA] are selected as 'R' site of the 2D framework of 'mixed halide' based 2D-PbHaP systems [(FPEA) 2 PbI 2 Br 2 and (FPA) 2 PbI 2 Br 2 )], to examine the impact of the 'spacer' on the optical properties, photo(electro)chemical, and photocatalytic behavior in the form of thin-films. The thin films were having an approximate thickness of 325 � 25 nm. The bandgap (E BG ) and photoluminescence peak of (FPA) 2 PbI 2 Br 2 was observed to be redshifted compared to (FPEA) 2 PbI 2 Br 2 . Chronoamperometry and linear sweep voltammetry (LSV) analysis indicated a ∼ 100 % improvement in the photo-current density for (FPA) 2 PbI 2 Br 2 compared to (FPEA) 2 PbI 2 Br 2 . Furthermore, the (FPA) 2 PbI 2 Br 2 based system showed better photocatalytic activity towards degradation of methylene blue and SÀ S coupling reactions, compared to (FPEA) 2 PbI 2 Br 2 .

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“…for optoelectronic applications, such as solar cells, light-emitting diodes, and photodetectors. [13][14][15] In addition, the utilization of Sr 2þ -based perovskites can effectively address the environmental concerns associated with Pb 2þ -based materials. Ongoing research is focused on optimizing the synthesis and performance of these materials as well as exploring their potential in various device architectures and applications.…”

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confidence: 99%

Promising Perovskite Solar Cell Candidates: Enhanced Optoelectronic Properties of XSrI₃ Perovskite Materials under Hydrostatic Pressure

Farhadi,

Zheng,

Liu

et al. 2023

Small Structures

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Density‐functional theory (DFT) has proven to be invaluable for investigating the physical properties of perovskite materials under varying pressure conditions to uncover potential applications in the field of optoelectronics. Herein, lead‐free XSrI3 (X = FA+, MA+, and DMA+ [formamidinium (FA+), methylammonium (MA+), and dimethylammonium (DMA)]) perovskites are designed and utilized using DFT calculations for promising solar cell applications. The application of pressure to these perovskites leads to a reduction in their lattice parameters, thereby enhancing atom interactions within the material. This compression of the crystal lattice also exerts a significant influence on the electronic band structure and the number of available electronic states, providing valuable insights into their semiconducting properties. Moreover, applying pressure results in a narrower bandgap in the perovskite halides, thus broadening the range of light absorption and potentially increasing light‐absorption efficiency. In this work, the feasibility of employing XSrI3 perovskites for enhanced optical performance is highlighted and valuable directions for further exploration in this field are offered. The insights gained from this theoretical study may hold the potential to advance the development of perovskite‐based materials for various optoelectronic applications.

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Effect of Sr2+ doping on optical, thermal and photocatalytic behaviour of CsPbBr3

Cited by 11 publications

References 18 publications

Influence of Sr doping on the photoelectronic properties of CsPbX₃ (X = Cl, Br, or I): a DFT investigation

Influence of Sr doping on the photoelectronic properties of CsPbX₃ (X = Cl, Br, or I): a DFT investigation

Effect of ‘Fluorophenylammonium’ and ‘Fluorophenethylammonium’ as Spacer on the Photo(electro)chemical and Photocatalytic Behaviour of Mixed Halide Based Layered Perovskites

Promising Perovskite Solar Cell Candidates: Enhanced Optoelectronic Properties of XSrI₃ Perovskite Materials under Hydrostatic Pressure

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Effect of Sr2+ doping on optical, thermal and photocatalytic behaviour of CsPbBr3

Cited by 11 publications

References 18 publications

Influence of Sr doping on the photoelectronic properties of CsPbX3 (X = Cl, Br, or I): a DFT investigation

Influence of Sr doping on the photoelectronic properties of CsPbX3 (X = Cl, Br, or I): a DFT investigation

Effect of ‘Fluorophenylammonium’ and ‘Fluorophenethylammonium’ as Spacer on the Photo(electro)chemical and Photocatalytic Behaviour of Mixed Halide Based Layered Perovskites

Promising Perovskite Solar Cell Candidates: Enhanced Optoelectronic Properties of XSrI3 Perovskite Materials under Hydrostatic Pressure

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Resources

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Influence of Sr doping on the photoelectronic properties of CsPbX₃ (X = Cl, Br, or I): a DFT investigation

Influence of Sr doping on the photoelectronic properties of CsPbX₃ (X = Cl, Br, or I): a DFT investigation

Promising Perovskite Solar Cell Candidates: Enhanced Optoelectronic Properties of XSrI₃ Perovskite Materials under Hydrostatic Pressure