Photoluminescence enhancement of perovskites nanocomposites using ion implanted silver nanoparticles

Iqbal, Shahid; Shabaninezhad, Masoud; Abuhagr, Abubkr; Vaghefi, Maryam; Ramakrishna, G.; Kayani, A.

doi:10.1016/j.cplett.2020.137995

Cited by 6 publications

(3 citation statements)

References 44 publications

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“…Photoluminescence occurs in noble metals due to an excitation in the electrons from occupied d bands to states above the Fermi level. The emission spectrum of synthesized AgNP is dependent on the excitation wavelength[53,54]. Ensuing the electron-phonon and hole-phonon scattering processes lead to energy loss and finally a photoluminescent recombination of an electron from an occupied sp band with the hole[14,53].…”

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confidence: 99%

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Microwave assisted green synthesis of silver nanoparticles for optical, catalytic, biological and electrochemical applications

Anjana¹,

Joseph²,

Francis³

et al. 2021

Artificial Cells, Nanomedicine, and Biotechnology

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Plant-derived nanoparticles have multi-functionalities owing to their ecological origin and biocompatible nature. A novel and stable silver nanoparticle (AgNP) was reported here using Cyanthillium cinereum (C. cinereum) as a reducing as well as capping agent by rapid microwave-assisted green method. The synthesized nanoparticles revealed their crystalline and spherical nature with an average size of 19.25 ± 0.44 nm in HR-TEM analysis. The excitation of electrons from occupied d-bands to states above the Fermi level while employing photoluminescence studies of AgNP indicated their awesome optical properties. Rapid decomposition of dangerous organic dyes like methylene blue and fuchsine in the catalytic presence of AgNP was evidenced from simple UV-visible spectral analysis. In vitro antioxidant potential assessed by DPPH assay indicated an IC 50 value of 40.80 ± 0.14 lg/mL for the new AgNP. A substantial control on the growth of pathogenic bacteria such as Staphylococcus aureus and Klebsiella pneumonia can be achieved by synthesized nanoparticles as demonstrated by the well diffusion method. AgNP was also functioned as a non-enzymatic electrochemical sensor with a sharp oxidation peak with peak potentials at 0.366 V and it has a wide application as a bio sensor in neurobiology especially in the detection of neurotransmitters like dopamine with high sensitivity.

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confidence: 99%

“…For AgNPs, the luminescence emission arises as a result of electron-hole recombination processes, i.e. the electron from sp conduction band above the Fermi level and hole from d-band below the Fermi level[52][53][54].…”

mentioning

confidence: 99%

Microwave assisted green synthesis of silver nanoparticles for optical, catalytic, biological and electrochemical applications

Anjana¹,

Joseph²,

Francis³

et al. 2021

Artificial Cells, Nanomedicine, and Biotechnology

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show abstract

“…Recent research has found that exciton-plasmon coupling can solve the problem of low luminescence efficiency in perovskite films by introducing metal structures to induce localized surface plasmon resonance near perovskite films [19][20][21] . For example, Lqbal et al used Ag ions implanted with different energies to enhance the photoluminescence of perovskite nanocomposites [22] . Chen et al plasmonic-enhanced blue photoluminescence efficiency of CsPb(Br/Cl)3 perovskite nanocrystals by Ag nanoparticles [23] .…”

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confidence: 99%

Improving optical properties of blue emission perovskite by plasmonic enhancement

Yuanxun

XUliang

Huang

et al. 2023

Conference on Infrared, Millimeter, Terahertz Waves and Applications (IMT2022)

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Halide perovskites (ABX3) have advantages of high photoluminescence quantum yield (PLQY), high gain coefficient, high carrier mobility and tunable bandgaps, which has great development potential and application prospects in tunable photoelectronic devices. However, blue emission perovskite LEDs lag behind their red and green counterparts in efficiency due to its high defect density and difficulties of maintaining quantum efficiency, which greatly restricts the development of the white light LEDs and display devices. Localized surface plasmon resonance (LSPR) can cause the resonant interactions of electromagnetic waves and free electrons in solid-state materials that have demonstrated great advantages in the field of Raman mapping, photodetector and laser. In addition, photoelectric properties of materials can also be manipulated by it that has great advantages for tunable photoelectric devices. In this work, the finite difference time domain (FDTD) method was used to simulate the extinction spectra of Au or Ag nanoparticles on SiO2, as well as study the influences of the shape of the nanoparticles on the position of extinction spectral peak. Then the influence of luminescence efficiency of the blue emission perovskite was analyzed by this model. Finally, the optimal optical enhancement structure of BE perovskite was obtained. According to the simulation results, compared with Au and Ag solid spheres, the Ag hollow sphere not only has the best optical enhancement effect on blue emission perovskite, but also has wide tunable ranges that can cover the entire optical band. Therefore, based on the regulation sensitivity of the Ag hollow spheres in the optical band, it provides an effective solution and simulation results for the performance optimization of perovskite-based tunable photoelectronic devices.

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Ag-CsPbI3 nanocomposite structure in glasses boosts photoluminescence for efficient light emitting diodes

Liu,

Zhao,

Hou

et al. 2024

Chemical Engineering Journal

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Photoluminescence enhancement of perovskites nanocomposites using ion implanted silver nanoparticles

Cited by 6 publications

References 44 publications

Microwave assisted green synthesis of silver nanoparticles for optical, catalytic, biological and electrochemical applications

Microwave assisted green synthesis of silver nanoparticles for optical, catalytic, biological and electrochemical applications

Improving optical properties of blue emission perovskite by plasmonic enhancement

Ag-CsPbI3 nanocomposite structure in glasses boosts photoluminescence for efficient light emitting diodes

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