Enhanced Air Stability of Perovskite Quantum Dots by Manganese Passivation

Sato, Ryota; Umemoto, Kazuki; Asakura, Satoshi; Masuhara, Akito

doi:10.3390/technologies10010010

Cited by 3 publications

(2 citation statements)

References 27 publications

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“…But, it has also certain disadvantages such as usage of polar solvents such as DMF degrade perovskite NCs and form defective perovskite NCs. [ 50 ] In this regard, Zhang et al had found that PbI 2 produces stable intermediates during the crystallization of MAPbI 3 NCs in presence of coordination solvents such as DMF, DMSO, and tetrahydrofuran, but it gets dissolved in noncoordinating solvents, such as acetonitrile and γ ‐butyrolactone. [ 51 ] Nature of solvents has vital effects on the formation of the crystal structure of the NCs.…”

Section: Synthesis Approaches For Preparation Of Hp Ncsmentioning

confidence: 99%

Synthesis and Properties of Halide Perovskites Nanocrystals Toward Solar Cells Application

Chini

2024

Energy Tech

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Halide perovskite nanocrystals (HP NCs) based perovskite solar cells (PSCs) have attracted serious attention along with relatively unstable bulk HP‐based thin‐ﬁlm solar cells aiming to make more eﬃcient and stable PSCs. HP NCs have still limited employment in PSCs despite their inherent unique properties such as strong absorption and photoluminescence, controlled transport and charge‐carrier mobility, low defect density, solution processability, and compatibility with large‐scale deposition techniques suitable for PSCs. Nanostructuring of the perovskites offers other unique characteristics such as confinement effects. These exciting characteristics together with the exceptional tunability in their shape, composition, and functionalities make HP NCs promising for PVs applications. In order to develop efficient HP NCs PSCs, major focus lies on discussing the various synthesis approaches, optoelectrical behaviors of HP NCs, and optimized device architectures. In this context, this review article deals with various approaches to HP NCs synthesis, properties, current challenges, and factors affecting the performance of the NC‐based PSCs. Based on these discussions, perspectives on promising directions for effective utilization of HP NCs toward the improvement and commercialization of the exciting promising material‐based stable and efficient PSCs in the near future are provided.

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Section: Synthesis Approaches For Preparation Of Hp Ncsmentioning

confidence: 99%

Synthesis and Properties of Halide Perovskites Nanocrystals Toward Solar Cells Application

Chini

2024

Energy Tech

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“…PeQD (Lead tri-halide (ABX3 A=Cs, MA (CH3NH2), and FA (NH2CHNH2), B=Pb, X=Cl, Br, and I) perovskite quantum dot) has greatly attracted attention as a light source to next generated optical materials due to its high PLQY (photoluminescence quantum yield) and high color purity attributed to narrow FWHM (full width at half maximum) [1][2][3][4][5] (Figure 1). Focusing on the emission wavelength, there are few reports on controlling the emission wavelength.…”

Section: Introductionmentioning

confidence: 99%

86‐1: Control of emission wavelength on perovskite quantum dot based on band engineering

Sato,

Asakura,

Kashiwagi

et al. 2023

Symp Digest of Tech Papers

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Precise Control of the Emission Wavelength on Perovskite Quantum Dots by Crystal Lattice Shrinkage/Expansion of the A Site Mixture

Sato,

Morikawa,

Yoshida

et al. 2024

ACS Appl. Opt. Mater.

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Lead trihalide perovskite quantum dots (PeQDs: APbX 3 ) have greatly attracted attention as a light source for lightemitting diodes such as display due to their excellent optical properties. However, focusing on the emission wavelength of PeQDs, it was difficult to precisely control the emission wavelength by the quantum confinement effect and inserting the other X site (= halide mixture, APbX 3−z X ′z , 0 < z < 3). Herein, we proposed a strategy to insert the other A site with a different ionic radius in the PeQD (A 1−x A′ x PbX 3, 0 < x < 1) to achieve precise control of the emission wavelength. Based on the energy band structure of the PeQD, it is possible to limit the factor of controlling the PeQD emission wavelength to crystal lattice shrinkage/expansion by inserting the other A site. We have successfully achieved to precisely control the emission wavelength on the PeQD in a several nanometers order by adjusting the molar ratio of two type A site cations. Precise control of the emission wavelength by only crystal lattice shrinkage/ expansion of the A site mixture has been an extremely significant finding, which expands the range of applications for PeQDs.

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Enhanced Air Stability of Perovskite Quantum Dots by Manganese Passivation

Cited by 3 publications

References 27 publications

Synthesis and Properties of Halide Perovskites Nanocrystals Toward Solar Cells Application

Synthesis and Properties of Halide Perovskites Nanocrystals Toward Solar Cells Application

86‐1: Control of emission wavelength on perovskite quantum dot based on band engineering

Precise Control of the Emission Wavelength on Perovskite Quantum Dots by Crystal Lattice Shrinkage/Expansion of the A Site Mixture

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