Succinic acid-assisted stability enhancement of a colloidal organometal halide perovskite and its application as a fluorescent keypad lock

Bansal, Parul; Kar, Prasenjit

doi:10.1039/c8nj06487c

Cited by 20 publications

(26 citation statements)

References 25 publications

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“…LHP NCs have been widely utilized in a spectrum of devices and applications including LEDs, [376,377] solar cells, [378,379] solar concentrators, [77] lasing, [51,380,381] scintillators, [382] photoarrays, [383] photodetectors, [384][385][386][387] catalysis, [220,246,[388][389][390] etc. [213,391,392] In nearly all cases, ligands have been found to play an important role in determining device performances. [393] Thus, there remains a lot of room to study how ligands affect the photophysical characteristics of NC solids for device applications.…”

Section: Ligand Consideration For Lhp Nc-based Applicationsmentioning

confidence: 99%

“…[212] Succinic acid is a bidentate ligand that has been used in combination with OAm also leading to increased stability under ambient conditions. [213] Similarly, L-cystine, a trifunctional amino acid ligand, has been used to passivate MAPbBr 3 NCs, resulting in highly stable assembled supercrystals due to electrostatic and van der Waals interactions between the NCs. [214] Finally, it has been shown that zwitterionic ligands can promote tight ligand binding to perovskite NC surfaces resulting in enhanced ligand shell stability evidenced by prolonged optical stability compared to their OA/OAm-capped counterparts [87] Copyright 2017, American Chemical Society.…”

Section: Other Chelating and Zwitterionic Ligands In The Synthesis Of...mentioning

confidence: 99%

“…[ 212 ] Succinic acid is a bidentate ligand that has been used in combination with OAm also leading to increased stability under ambient conditions. [ 213 ] Similarly, L‐cystine, a trifunctional amino acid ligand, has been used to passivate MAPbBr 3 NCs, resulting in highly stable assembled supercrystals due to electrostatic and van der Waals interactions between the NCs. [ 214 ]…”

Section: Ligand Roles In the Direct Synthesis Of Lhp Ncs And Their Ef...mentioning

confidence: 99%

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Recent Advances in Ligand Design and Engineering in Lead Halide Perovskite Nanocrystals

et al. 2021

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Lead halide perovskite (LHP) nanocrystals (NCs) have recently garnered enhanced development efforts from research disciplines owing to their superior optical and optoelectronic properties. These materials, however, are unlike conventional quantum dots, because they possess strong ionic character, labile ligand coverage, and overall stability issues. As a result, the system as a whole is highly dynamic and can be affected by slight changes of particle surface environment. Specifically, the surface ligand shell of LHP NCs has proven to play imperative roles throughout the lifetime of a LHP NC. Recent advances in engineering and understanding the roles of surface ligand shells from initial synthesis, through postsynthetic processing and device integration, finally to application performances of colloidal LHP NCs are covered here.

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Section: Ligand Consideration For Lhp Nc-based Applicationsmentioning

confidence: 99%

Section: Other Chelating and Zwitterionic Ligands In The Synthesis Of...mentioning

confidence: 99%

Section: Ligand Roles In the Direct Synthesis Of Lhp Ncs And Their Ef...mentioning

confidence: 99%

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Recent Advances in Ligand Design and Engineering in Lead Halide Perovskite Nanocrystals

et al. 2021

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“…Since then, colloidal MAPbX 3 quantum dots with long aliphatic ligand have been routinely prepared with high photoluminescence quantum yield . In our previous work, short bidentate ligand is used for the synthesis of stable perovskite nanomaterials . Bakr and co‐workers have also reported the effective use of a bidentate ligand .…”

Section: Introductionmentioning

confidence: 99%

“…[1,4] In our previous work, short bidentate ligand is used for the synthesis of stable perovskite nanomaterials. [22] Bakr and co-workers have also reported the effective use of a bidentate ligand. [23] Routine studies show that the long chain aliphatic amine ligand is used as a capping agent, whereas long chain aliphatic acid is used as a stabilizing agent.…”

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confidence: 99%

Essential Amino Acid–Enabled Lead Bromide Perovskite Nanocrystals with High Stability

Sharma

Bansal

Nim

et al. 2019

Part & Part Syst Charact

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This work reports the first synthesis of MAPbBr3 perovskite nanocrystals (PNCs) using amino acids as the ligand with excellent optical properties. A variety of amino acids are used to optimize the luminescence properties. A mechanochemical approach has taken lead over conventional colloidal chemistry during synthesis. All morphological and optical studies are performed to characterize the synthesized perovskite nanoparticles. Later, stability studies are investigated through thermogravimetric analysis, temperature‐dependent photoluminescence, time‐dependent X‐ray diffraction, as well as X‐ray photoelectron spectroscopy. In an application, interestingly, these perovskites show high luminescence upon scratching on flexible conducting plates and on plain paper surface. These results suggest that the amino acid–ligated perovskite nanocrystals can be potential materials for optoelectronic application including light‐emitting diodes and imaging.

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Simultaneous Encapsulation of Mixed‐Halide Perovskite on Synthesis Step Using a Thermally Expandable Lamellar Capsule to Fabricate the Multi‐Conversion Layer

Yoo

Kwon

Yoo

et al. 2023

Advanced Optical Materials

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Despite the excellent performance of halide perovskite, low stability, and ion exchange between halides have remained obstacles to practical application. Herein, the polymer capsule encapsulated perovskite through the conventional hot‐injection method is reported to overcome the above issues. The residual heat generated during perovskite synthesis is utilized to expand the layer, and the perovskite particles are grown inside the polyethylene capsule. The products are gathered in a powder state, and the whole emission range can be synthesized. The water stability after 6 h soaked in water shows ≈90% and ≈75% for green and red, respectively. Also, due to the suppressed ion exchange, the single multi‐conversion layer for white light generation can be fabricated.

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Succinic acid-assisted stability enhancement of a colloidal organometal halide perovskite and its application as a fluorescent keypad lock

Abstract: MAPbBr3 perovskite nanocrystals were synthesized using bidentate succinic acid as a capping ligand for stable fluorescence.

Cited by 20 publications

References 25 publications

Recent Advances in Ligand Design and Engineering in Lead Halide Perovskite Nanocrystals

Recent Advances in Ligand Design and Engineering in Lead Halide Perovskite Nanocrystals

Essential Amino Acid–Enabled Lead Bromide Perovskite Nanocrystals with High Stability

Simultaneous Encapsulation of Mixed‐Halide Perovskite on Synthesis Step Using a Thermally Expandable Lamellar Capsule to Fabricate the Multi‐Conversion Layer

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