Photophysical properties of ammonium, pyrrolidinium, piperidinium, imidazolium, and pyridinium as a guide to prepare ionic-organic hybrid materials

Kusumawati, Yuly; Ivansyah, Atthar Luqman; Ali, Badrut Tamam Ibnu; Kurnia, Kiki A.; Hutama, Aulia Sukma; Fansuri, Hamzah

doi:10.1016/j.heliyon.2022.e09121

Cited by 3 publications

(3 citation statements)

References 38 publications

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“…However, Zhang et al found that PyMnBr 3 perovskites have an emission maximum at 640 nm, suggesting that perovskites with a larger Py cation differ from other MHPs with respect to the impact of the halide. In fact, Kusumawati et al [112] calculated the photophysical properties of pyrrolidinium, showing a phosphorescence maximum of around 659.5 nm, suggesting that this may be the dominant emission for such a brominated system [113]. Regardless, there is a distinct shift in the emission spectrum from that observed for just iodine precursors, suggesting a bromide-dominated system or a mixed halide phase.…”

Section: Pyrrolidinium Based Perovskite Nanoparticlesmentioning

confidence: 99%

“…Recently, the introduction of larger ionic liquid cations, such as ammonium, pyrrolidinium, piperidinium, imidazolium, and pyridinium, into organo-halide perovskites has shown some novel electronic, luminescent, and stability properties [112][113][114][115]. In particular, pyrrolidine hydroiodide (PyI), with a large five-membered heterocycle pyrrolidinium ring, has led to novel high stability phases, both as a single crystal PyPbI 3 and as a 1D stabilizer for MAI-and FAI-based perovskites [115][116][117][118][119].…”

Section: Pyrrolidinium Based Perovskite Nanoparticlesmentioning

confidence: 99%

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Unusual Phase Behaviour for Organo-Halide Perovskite Nanoparticles Synthesized via Reverse Micelle Templating

Munir,

Salib,

Hui

et al. 2023

Chemistry

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Micelle templating has emerged as a powerful method to produce monodisperse nanoparticles. Herein, we explore unconventional phase transformations in the synthesis of organo-halide perovskite nanoparticles utilizing reverse micelle templates. We employ diblock-copolymer reverse micelles to fabricate these nanoparticles, which confines ions within micellar nanoreactors, retarding reaction kinetics and facilitating perovskite cage manipulation. The confined micellar environment exerts pressure on both precursors and perovskite crystals formed inside, enabling stable phases not typically observed at room temperature in conventional synthesis. This provides access to perovskite structures that are otherwise challenging to produce. The hydrophobic shell of the micelle also enhances perovskite stability, particularly when combined with anionic exchange approaches or large aromatic cations. This synergy results in long-lasting stable optical properties despite environmental exposure. Reverse micelle templates offer a versatile platform for modulating perovskite structure and behavior across a broad spectrum of perovskite compositions, yielding unique phases with diverse emission characteristics. By manipulating the composition and properties of the reverse micelle template, it is possible to tune the characteristics of the resulting nanoparticles, opening up exciting opportunities for customizing optical properties to suit various applications.

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Section: Pyrrolidinium Based Perovskite Nanoparticlesmentioning

confidence: 99%

Section: Pyrrolidinium Based Perovskite Nanoparticlesmentioning

confidence: 99%

Unusual Phase Behaviour for Organo-Halide Perovskite Nanoparticles Synthesized via Reverse Micelle Templating

Munir,

Salib,

Hui

et al. 2023

Chemistry

View full text Add to dashboard Cite

show abstract

“…Recently, the integration of more substantial ionic liquid cationssuch as ammonium, pyrrolidinium (Py), piperidinium, imidazolium, and pyridiniuminto organo-halide perovskites has unveiled unique electronic, luminescent, and stability characteristics. − Particularly, pyrrolidine hydroiodide (PyI), with a bulky five-membered heterocycle ring, has been used to produce perovskites with high stability, for single-crystal PyPbI 3 , and for methylammonium- and formamidinium-based perovskites with 1D stabilizing additives. − Unlike smaller organic ions, the Py π electrons can form anion-π and π–π interactions within the large heterocycle, yielding a more rigid structure . Such bonding interactions result in a hydrophobic ring, which provides high temperature and moisture stability without significant distortion of the band gap. , Taking advantage of these effects, Xu et al showed that PyPbI 3 single crystals were stable in water for 4 months .…”

Section: Introductionmentioning

confidence: 99%

Leveraging Bromine-Induced Large Stokes Shift in Pyrrolidinium Perovskite Nanoparticles for Improved Organic Photovoltaic Performance

Munir,

Arbi,

Tan

et al. 2024

ACS Appl. Nano Mater.

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Using the reverse micelle synthesis route, polystyrene-b-2vinylpyridine (PS-b-P2VP) diblock copolymers are used to synthesize hybrid perovskite nanoparticles with an ionic organic liquid five-membered heterocycle cation, pyrrolidinium (Py) (C 4 H 8 NH). Uniform, well-dispersed, and luminescent nanoparticles were fabricated with high stability due to the hydrophobic nature of Py and polymer encapsulation. The substitution of bromine for iodine induces a bathochromic shift, resulting in a substantial Stokes shift of 764 meV (211 nm) for mixed halide phase nanoparticles, contrary to the anticipated hypsochromic shift with bromine doping. This unique attribute of Py-based perovskites positions them as promising candidates for down-conversion applications in low-band-gap organic solar cells. Incorporating Pybased perovskite nanoparticles into bulk heterojunction organic photovoltaics (OPVs) as down-conversion layers selectively enhances the short-circuit current from UV components in the illumination source. The observed improvements in stability, uniformity, and luminescence, coupled with the distinct Stokes shift, underscore the potential of Py-based perovskite nanoparticles as a valuable component in improving the efficiency of OPVs.

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Performance of density functional theory for calculating the electronic, static, and dynamic nonlinear optical properties of asymmetric (3E,5E)-3,5-dibenzylidene-piperidin-4-one derivatives

Marlina,

Hutama,

Zanah

et al. 2023

Opt Quant Electron

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Photophysical properties of ammonium, pyrrolidinium, piperidinium, imidazolium, and pyridinium as a guide to prepare ionic-organic hybrid materials

Cited by 3 publications

References 38 publications

Unusual Phase Behaviour for Organo-Halide Perovskite Nanoparticles Synthesized via Reverse Micelle Templating

Unusual Phase Behaviour for Organo-Halide Perovskite Nanoparticles Synthesized via Reverse Micelle Templating

Leveraging Bromine-Induced Large Stokes Shift in Pyrrolidinium Perovskite Nanoparticles for Improved Organic Photovoltaic Performance

Performance of density functional theory for calculating the electronic, static, and dynamic nonlinear optical properties of asymmetric (3E,5E)-3,5-dibenzylidene-piperidin-4-one derivatives

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