Photoluminescence of a novel green emitting Bi2O3:Tb3+nanophosphors for display, thermal sensor and visualisation of latent fingerprints

Sawant, Ashwini; Prashantha, S.C.; Naik, Ramachandra; Naik, Yashwanth V.; Nagabhushana, H.; Jnaneshwara, D.M.

doi:10.1016/j.ijleo.2019.162956

Cited by 23 publications

(2 citation statements)

References 33 publications

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“…[7][8][9] It is currently believed that the rare-earth doped inorganic luminescent NCs cited in Table 1 are among the most promising options for LFPs detection. [10][11][12][13][14][15][16][17][18][19][20][21][22] The wavelength at which the human eye is most sensitive, which is typically 555 nm, is not where these materials' emission maxima are, though. This gap makes it difficult to display FP data in a readable manner.…”

Section: Introductionmentioning

confidence: 99%

Unclonable fluorescence of MgO‐ZrO₂:Tb³⁺ nanocomposite for versatile applications in data security, dermatoglyphics

Swathi

Krushna

Prasad³

et al. 2023

Luminescence

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Latent fingerprints (LFPs) are one among the most important types of evidences at crime scenes because of the distinctiveness and tenacity of the friction ridges in fingerprints (FPs). Therefore, it is essential in forensic science to develop a reliable method to detect LFPs. Traditional detection methods still face a number of difficulties, such as limited sensitivity, low contrast, strong background, and complex processing stages. In this study, MgO‐ZrO2:Tb3+ (1–5 mol%) (MZ:Tb) nanocomposites (NCs) were prepared via a simple solution combustion (SC) method at low temperature. The photoluminescence (PL) investigation demonstrates that when excited at 379 nm, the produced NCs emits distinctive emission peaks of terbium ions (Tb3+). According to the photometric results, the NCs can be employed as warm light NCs and emit light in the green portion of the colour spectrum. The estimated optical band gap from diffuse reflectance spectra is found to be in the range 4.84–4.97 eV. Regardless of the type of surface being used, the optimized MgO‐ZrO2:Tb3+ (4 mol%) (MZ:4Tb) NCs has a strong ability to minimize background fluorescence interference. With high contrast LFP and I–V type of cheiloscopy, these NCs present a flexible fluorescent mark for the identification of levels 1–3 details in forensic investigation.

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Section: Introductionmentioning

confidence: 99%

Unclonable fluorescence of MgO‐ZrO₂:Tb³⁺ nanocomposite for versatile applications in data security, dermatoglyphics

Swathi

Krushna

Prasad³

et al. 2023

Luminescence

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“…e combustion technique emerged in the last decade as an important synthesis technique for oxide nanoparticles for being very simple experimental setup, provides molecular level of mixing and high degree of homogeneity, fast, cost-effective, ultrapure, and large surface area. Also, at the same time, solution combustion synthesis facilitates the fine-tuning of the properties by controlling crucial parameters [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

A Comparative Cyclic Voltametric Study on Rare Earth (Eu, Sm, Dy, and Tb) Ions Doped La10Si6O27 Nanophosphors for Sensor Application

Kumar

Jnaneshwara

Ravikumar³

et al. 2022

Advances in Materials Science and Engineering

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The rare earth (RE = Eu, Sm, Dy, and Tb) ions doped La10Si6O27 nanophosphor was synthesized by a simple solution combustion method. The prepared La10Si6O27:RE3+ nanophosphors (LNPs) were subjected to diverse technical tools for exploring their structural, optical, morphological, and electrochemical features. The structural analysis using powder X-ray diffraction (PXRD) patterns revealed the hexagonal oxy apatite phase for LNPs with a crystallite size in the range of 25–50 nm, and the equivalent was affirmed by image analysis via transmission electron microscopy (TEM). Utilizing DRS data, the bandgap energy (Eg) values were recorded for LNPs. Cyclic voltametric (CV), electrochemical impedance spectroscopy (EIS), and sensor studies were performed using a modified carbon paste electrode of LNPs. The modified LNP electrodes were found to be highly effective in sensing paracetamol in acidic medium with a quick response time of 3 secs for sensing the drugs at 1 mM concentration. All the RE ions Eu3+, Sm3+, Dy3+, and Tb3+ (5 mol%)-doped LNPs exhibited the most promising electrochemical sensing characteristics.

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Luminescent nanostructures for the detection of latent fingermarks: A review

Shahbazi

Becker

Jia

et al. 2021

WIREs Forensic Science

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Multicolored, multipatterned, and luminescent substrates remain significant challenges for successful detection of latent fingermarks. One effective way to overcome issues with these substrates when visualizing latent fingermarks is the elimination of any background interference through the use of approaches based on luminescence. Luminescent nanoparticles with their unique characteristics including tunable size, high surface energy, and capability of being surface engineered, have sparked great interest in their potential to be utilized for the detection of latent fingermarks on these challenging substrates. These nanoparticles can be inherently luminescent, engineered to luminesce, possibly over specific wavelength ranges, or combined with luminescent agents. This article discusses the reported luminescence-based nanotechnology applied for enhanced visualization of latent fingermarks to cast light on future possibilities.

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Photoluminescence of a novel green emitting Bi2O3:Tb3+nanophosphors for display, thermal sensor and visualisation of latent fingerprints

Cited by 23 publications

References 33 publications

Unclonable fluorescence of MgO‐ZrO₂:Tb³⁺ nanocomposite for versatile applications in data security, dermatoglyphics

Unclonable fluorescence of MgO‐ZrO₂:Tb³⁺ nanocomposite for versatile applications in data security, dermatoglyphics

A Comparative Cyclic Voltametric Study on Rare Earth (Eu, Sm, Dy, and Tb) Ions Doped La10Si6O27 Nanophosphors for Sensor Application

Luminescent nanostructures for the detection of latent fingermarks: A review

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Photoluminescence of a novel green emitting Bi2O3:Tb3+nanophosphors for display, thermal sensor and visualisation of latent fingerprints

Cited by 23 publications

References 33 publications

Unclonable fluorescence of MgO‐ZrO2:Tb3+ nanocomposite for versatile applications in data security, dermatoglyphics

Unclonable fluorescence of MgO‐ZrO2:Tb3+ nanocomposite for versatile applications in data security, dermatoglyphics

A Comparative Cyclic Voltametric Study on Rare Earth (Eu, Sm, Dy, and Tb) Ions Doped La10Si6O27 Nanophosphors for Sensor Application

Luminescent nanostructures for the detection of latent fingermarks: A review

Contact Info

Product

Resources

About

Unclonable fluorescence of MgO‐ZrO₂:Tb³⁺ nanocomposite for versatile applications in data security, dermatoglyphics

Unclonable fluorescence of MgO‐ZrO₂:Tb³⁺ nanocomposite for versatile applications in data security, dermatoglyphics