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Brini L, Bennour I, Toncelli A, Maalej R, Abdelhedi M. Eu-Doped Pyrochlore Crystal Nano-Powders as Fluorescent Solid for Fingerprint Visualization and for Anti-Counterfeiting Applications. MATERIALS 2022; 15:ma15072423. [PMID: 35407757 PMCID: PMC8999860 DOI: 10.3390/ma15072423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/12/2022] [Accepted: 03/22/2022] [Indexed: 11/30/2022]
Abstract
Undoped Y2Sn2O7 and Eu3+ doped Y2Sn2O7 samples with doping concentrations 7%, 8%, 9%, and 10% are successfully synthesized by the co-precipitation method. A complete structural, morphological, and spectroscopic characterization is carried out. XRD measurements reveal that samples crystallize in the pure single pyrochlore phase and Eu3+ ions occupy sites with D3d symmetry. After mechanical grinding, the average crystallite size is less than 100 nm for all compositions. Optical characterization shows emission from the 5D0 level towards the lower lying 7F0,1,2,3,4 levels. The CIE color coordinates of all the pyrochlore phosphors are very close to those of the ideal red light. For the visualization of latent fingerprints, different surfaces are tested, including difficult ones (wood and ceramic), with excellent results. All three levels of fingerprint ridge patterns are visualized: core (Level 1), bifurcation and termination (Level 2), and sweat pores (Level 3). Moreover, our nano-powders are used to prepare a stable fluorescent ink.
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Affiliation(s)
- Layla Brini
- Laboratory of Inorganic Chemistry, Faculty of Sciences of Sfax, Sfax University, Sfax 3018, Tunisia; (L.B.); (M.A.)
| | - Ines Bennour
- Laboratory of Dielectric and Photonic Materials, Faculty of Sciences of Sfax, Sfax University, Sfax 3018, Tunisia; (I.B.); (R.M.)
| | - Alessandra Toncelli
- Dipartimento di Fisica, Università di Pisa, Largo B. Pontecorvo 3, I-56127 Pisa, Italy
- Istituto Nanoscienze CNR, Piazza San Silvestro 12, I-56127 Pisa, Italy
- Istituto Nazionale di Fisica Nucleare-Sezione di Pisa, Largo B. Pontecorvo 3, I-56127 Pisa, Italy
- Correspondence: ; Tel.: +39-050-2214-556
| | - Ramzi Maalej
- Laboratory of Dielectric and Photonic Materials, Faculty of Sciences of Sfax, Sfax University, Sfax 3018, Tunisia; (I.B.); (R.M.)
| | - Mohamed Abdelhedi
- Laboratory of Inorganic Chemistry, Faculty of Sciences of Sfax, Sfax University, Sfax 3018, Tunisia; (L.B.); (M.A.)
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Mehrdel B, Nikbakht A, Aziz AA, Jameel MS, Dheyab MA, Khaniabadi PM. Upconversion lanthanide nanomaterials: basics introduction, synthesis approaches, mechanism and application in photodetector and photovoltaic devices. NANOTECHNOLOGY 2021; 33:082001. [PMID: 34753124 DOI: 10.1088/1361-6528/ac37e3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 11/09/2021] [Indexed: 06/13/2023]
Abstract
Upconversion (UC) of lanthanide-doped nanostructure has the unique ability to convert low energy infrared (IR) light to high energy photons, which has significant potential for energy conversion applications. This review concisely discusses the basic concepts and fundamental theories of lanthanide nanostructures, synthesis techniques, and enhancement methods of upconversion for photovoltaic and for near-infrared (NIR) photodetector (PD) application. In addition, a few examples of lanthanide-doped nanostructures with improved performance were discussed, with particular emphasis on upconversion emission enhancement using coupling plasmon. The use of UC materials has been shown to significantly improve the NIR light-harvesting properties of photovoltaic devices and photocatalytic materials. However, the inefficiency of UC emission also prompted the need for additional modification of the optical properties of UC material. This improvement entailed the proper selection of the host matrix and optimization of the sensitizer and activator concentrations, followed by subjecting the UC material to surface-passivation, plasmonic enhancement, or doping. As expected, improving the optical properties of UC materials can lead to enhanced efficiency of PDs and photovoltaic devices.
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Affiliation(s)
- Baharak Mehrdel
- New Technologies Research Centre, Amirkabir University of Technology, (Tehran Polytechnic), Tehran, 158754413, Iran
| | - Ali Nikbakht
- New Technologies Research Centre, Amirkabir University of Technology, (Tehran Polytechnic), Tehran, 158754413, Iran
| | - Azlan Abdul Aziz
- Nano-Optoelectronics Research and Technology Lab (NORLab), School of Physics, Universiti Sains Malaysia, 11800, Pulau Pinang, Malaysia
- Nano-Biotechnology Research and Innovation (NanoBRI), Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, 11800, Pulau Pinang, Malaysia
| | - Mahmood S Jameel
- Nano-Optoelectronics Research and Technology Lab (NORLab), School of Physics, Universiti Sains Malaysia, 11800, Pulau Pinang, Malaysia
| | - Mohammed Ali Dheyab
- Nano-Optoelectronics Research and Technology Lab (NORLab), School of Physics, Universiti Sains Malaysia, 11800, Pulau Pinang, Malaysia
| | - Pegah Moradi Khaniabadi
- Department of Radiology and Molecular Imaging, College of Medicine and Health Science, Sultan Qaboos University, PO Box 35, 123, Al Khod, Muscat, Oman
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Perala R, Singh BP, Putta VN, Acharya R, Ningthoujam RS. Enrichment of Crystal Field Modification via Incorporation of Alkali K + Ions in YVO 4:Ho 3+/Yb 3+ Nanophosphor and Its Hybrid with Superparamagnetic Iron Oxide Nanoparticles for Optical, Advanced Anticounterfeiting, Uranyl Detection, and Hyperthermia Applications. ACS OMEGA 2021; 6:19517-19528. [PMID: 34368538 PMCID: PMC8340087 DOI: 10.1021/acsomega.1c01813] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 05/25/2021] [Indexed: 05/13/2023]
Abstract
In this work, we report a polyol route for easy synthesis of upconversion (UC) phosphor nanoparticles, YVO4:Ho3+-Yb3+-K+, which enables large-scale production and enhancement of luminescence. Upon 980 nm laser excitation, the UC emission spectrum shows a sharp bright peak at ∼650 nm of Ho3+ ion; and the luminescence intensity increases twofold upon K+ codoping. Upon 300 nm excitation, the downconversion emission spectrum shows a broad peak in the 400-500 nm range (related to the charge transfer band of V-O) along with Ho3+ peaks. In addition, the polyethylene glycol-coated UC nanoparticles are highly water-dispersible and their hybrid with Fe3O4 nanoparticles shows magnetic-luminescence properties. A hyperthermia temperature is achieved from this hybrid. Both UC and hybrid nanoparticles show interesting security ink properties upon excitation by a 980 nm laser. The particles are invisible in normal light but visible upon 980 nm excitation and are useful in display devices, advanced anticounterfeiting purposes, and therapy of cancer via hyperthermia and bioimaging (since it shows red emission at ∼650 nm). Using UC nanoparticles, detection of uranyl down to 20 ppm has been achieved.
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Affiliation(s)
- Ramaswamy
Sandeep Perala
- Department
of Chemistry, GITAM University, Hyderabad 502329, India
- Chemistry
Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Radiochemistry
Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Bheeshma Pratap Singh
- Chemistry
Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- . Tel.: +91-22-25592321
| | | | - Raghunath Acharya
- Radiochemistry
Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Homi
Bhabha National Institute, Mumbai 400094, India
- . Tel.: +91-22-25594590
| | - Raghumani Singh Ningthoujam
- Chemistry
Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Homi
Bhabha National Institute, Mumbai 400094, India
- . Tel.: +91-22-25592321
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Perala R, Joshi R, Singh BP, Putta VNK, Acharya R, Ningthoujam RS. Brilliant Nonlinear Optical Response of Ho 3+ and Yb 3+ Activated YVO 4 Nanophosphor and Its Conjugation with Fe 3O 4 for Smart Anticounterfeit and Hyperthermia Applications. ACS OMEGA 2021; 6:19471-19483. [PMID: 34368534 PMCID: PMC8340094 DOI: 10.1021/acsomega.1c01572] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 06/30/2021] [Indexed: 06/13/2023]
Abstract
YVO4:Ho3+/Yb3+ nanophosphors prepared by an effective polyol-mediated route show dual-mode behavior in photoluminescence. Upon 980 nm excitation, the upconversion red emission spectrum exhibits a bright red peak at ∼650 nm, characteristic of the electronic transition of the Ho3+ ion via involvement of two-photon absorption, which has been confirmed by the power-dependent luminescence study. Moreover, at 300 nm excitation, downconversion emission peaks are observed at 550, 650, and ∼755 nm. The nonradiative resonant energy transfer occurs from the V-O charge transfer band to Ho3+ ions, resulting in an improved emission of Ho3+ ions. Moreover, polyethylene glycol-coated nanoparticles make it suitable for water dispersibility; and these particles are conjugated with Fe3O4 nanoparticles to form magnetic-luminescent hybrid nanoparticles. Highly water-dispersible magnetic-luminescent hybrid material attained the hyperthermia temperature (∼42 °C) under an applied AC magnetic field. The specific absorption rate value is found to be high (138 W/g), which is more than that of pure superparamagnetic Fe3O4 nanoparticles. At 300 nm excitation, the high quantum yield value of ∼27% is obtained from YVO4:Ho3+/Yb3+, which suggests that it is a good phosphor material. By employing the neutron activation analysis technique, it is shown that nanophosphor particles can absorb Au3+ up to the ppm level. Interestingly, such nanophosphor also shows the potentiality for anticounterfeiting applications.
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Affiliation(s)
- Ramaswamy
Sandeep Perala
- Department
of Chemistry, GITAM University, Hyderabad 502329, India
- Chemistry
Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Radiochemistry
Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Rashmi Joshi
- Chemistry
Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Homi
Bhabha National Institute, Mumbai 400094, India
| | | | | | - Raghunath Acharya
- Radiochemistry
Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Homi
Bhabha National Institute, Mumbai 400094, India
| | - Raghumani Singh Ningthoujam
- Chemistry
Division, Bhabha Atomic Research Centre, Mumbai 400085, India
- Homi
Bhabha National Institute, Mumbai 400094, India
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Wu T, Xie M, Huang J, Yan Y. Putting Ink into Polyion Micelles: Full-Color Anticounterfeiting with Water/Organic Solvent Dual Resistance. ACS APPLIED MATERIALS & INTERFACES 2020; 12:39578-39585. [PMID: 32805932 DOI: 10.1021/acsami.0c10355] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Anticounterfeiting paintings are usually with limited colors and easy blurring and need to be dispersed in an environmentally unfriendly organic solvent. We report a set of water-based polyion micellar inks to solve all these problems. Upon complexation of reversible coordination polymers formed with rare earth metal ions Eu3+ and Tb3+ and the aggregation-induced emission ligand tetraphenylethylene-L2EO4 with oppositely charged block polyelectrolyte P2MVP29-b-PEO205, we are able to generate polyion micelles displaying three elementary emission colors of red (R) (ΦEu3+ = 24%), green (G) (ΦTb3+ = 7%), and blue (B) (ΦTPE = 9%). Full-spectrum emission and white light emission (0.34, 0.34) become possible by simply mixing the R, G, and B micelles at the desired fraction. Strikingly, the micellar inks remain stable even after soaking in water or organic solvents (ethyl acetate, ethanol, etc.) for 24 h. We envision that polyion micelles would open a new paradigm in the field of anticounterfeiting.
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Affiliation(s)
- Tongyue Wu
- Beijing National Laboratory for Molecular Sciences (BNLMS), College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Mengqi Xie
- Beijing National Laboratory for Molecular Sciences (BNLMS), College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Jianbin Huang
- Beijing National Laboratory for Molecular Sciences (BNLMS), College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Yun Yan
- Beijing National Laboratory for Molecular Sciences (BNLMS), College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
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Simple Methods to Synthesize YVO 4 Nanocrystals or Microcrystals without Any Templates or Surfactants. J CHEM-NY 2020. [DOI: 10.1155/2020/3878409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
YVO4 crystals with different sizes and shapes were produced through hydrothermal treatment and sonication method without any surfactants or templates. X-ray powder diffraction (XRD), transmission electron microscopy (TEM), and photoluminescence (PL) were used to characterize the obtained products. YVO4 nanocrystals with spindle-like shape had been produced through the two different treating methods. YVO4 crystals, which are bipyramid-capped and micrometer-sized, had been obtained through a simple hydrothermal treatment. Uniform microsized cuboids had been produced through hydrothermal treatment with the final pH value = 2.5. The effects of different final pH values on the shape and crystallinity of products were studied. To determine photoluminescence performances, Eu3+(5%)-doped YVO4 nanocrystals had been synthesized through different methods in various environments and it had been confirmed that crystallinity would affect photoluminescence intensity.
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