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Influence of annealing temperature on material properties of red emitting ZnGa2O4: Cr3+ nanostructures

  • Original Paper: Nano-structured materials (particles, fibers, colloids, composites, etc.)
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Abstract

Zinc gallate (ZnGa2O4) nanopowders doped with Cr3+ (1 mo%) were synthesized by the citric acid assisted sol–gel method. The influence of annealing temperature, structural, morphological, and optical properties of ZnGa2O4: Cr3+ (1 mol%) nanosized particles were investigated. The X-ray diffraction (XRD) spectra indicated that the nanoparticles are cubic in structure and the annealing temperature did not influence any c in structure. The average crystallite size of ZnGa2O4: Cr3+ nanoparticles were observed to increase from 11.85 to 30.88 nm as the annealing temperature increased from 600 to 1000 °C. The scanning electron microscopy (SEM) showed nearly spherical nanostructures that change in size with annealing temperature. The high resolution transmission electron microscope (HR-TEM) images show well resolved lattice fringes which is an indications of highly crystalline samples. Ultraviolet–visible (UV–Vis) measurement show decrease in reflectance in visible region and energy band gap was found to decrease with annealing temperature. The photoluminescence (PL) intensity was found to be maximum for sample annealed at high temperature (1000 °C) and least with sample annealed at low temperature (600 °C). An increase in annealing temperature leads significantly increment in PL intensity. The degree of crystallinity also increased with annealing temperature from XRD, SEM, and HR-TEM analysis. The photoluminescence lifetimes, particle size, and emission spectra are comparable with reports on bioimaging applications.

Highlights

In this paper, we provide the insights on the “Influence of annealing temperature on material properties of red emitting ZnGa2O4: Cr3+ nanostructures”.

It is found that:

  • The structural, morphological and optical properties of this material affected by annealing temperature.

  • The crystallite size and PL intensity found to be increased with annealing temperature.

  • Energy band gap found to be decreased with annealing temperature.

  • The parameter values obtained encourage the application of this materials for bioimaging application.

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References

  1. Cha JH, Kim KH, Park YS, Park SJ, Choi HW (2009) Photoluminescence characteristics of nanocrystalline ZnGa2O4 phosphors obtained at different sintering temperatures. Mol Cryst Liq Cryst 499(1):85–407

    Article  Google Scholar 

  2. Kim JS, Kim JS, Kim TW, Park HL, Kim YG, Chang SK, Do Han S (2004) Energy transfer among three luminescent centers in full-color emitting ZnGa2O4: Mn2+, Cr3+ phosphors. Solid State Commun 131(8):493–7

    Article  CAS  Google Scholar 

  3. Luan T, Liu J, Yuan X, Li JG (2017) Controlled hydrothermal synthesis and photoluminescence of nanocrystalline ZnGa2O4: Cr 3+ monospheres. Nanoscale Res Lett 12(1):219

    Article  Google Scholar 

  4. Bordun OM, Bihday VG, Kukharskyy IY (2014) Photo-and cathodoluminescence of ZnGa2O4: Cr thin films. J Appl Spectrosc 81(1):43–8

    Article  CAS  Google Scholar 

  5. Sharma SK, Gourier D, Viana B, Maldiney T, Teston E, Scherman D, Richard C (2014) Persistent luminescence of AB2O4: Cr3+ (A = Zn, Mg, B = Ga, Al) spinels: new biomarkers for in vivo imaging. Opt Mater 36(11):1901–6

    Article  CAS  Google Scholar 

  6. Srivastava BB, Kuang A, Mao Y (2015) Persistent luminescent sub-10 nm Cr doped ZnGa2O4 nanoparticles by a biphasic synthesis route. Chem Commun 51(34):7372–5

    Article  CAS  Google Scholar 

  7. Gu Z, Liu F, Li X, Howe JY, Xu J, Pan Z (2009) Red, green, and blue (RGB) luminescence from ZnGa2O4 nanowire arrays J Am Chem Soc 1(1):354–357

    Google Scholar 

  8. Bessière A, Jacquart S, Priolkar K, Lecointre A, Viana B, Gourier D (2011) ZnGa2O4: Cr3+: a new red long-lasting phosphor with high brightness. Opt Express 19(11):10131–7

    Article  Google Scholar 

  9. Dhak P, Gayen UK, Mishra S, Pramanik P, Roy A (2009) Optical emission spectra of chromium doped nanocrystalline zinc gallate. J Appl Phys 106(6):063721

    Article  Google Scholar 

  10. Cha JH, Choi HW (2011) Luminescence characteristics of ZnGa2O4: Mn2+, Cr3+ phosphor and thick film. Trans Electr Electron Mater 12(1):11–5

    Article  Google Scholar 

  11. Sharma SK, Gourier D, Viana B, Maldiney T, Teston E, Scherman D, Richard C (2014) Persistent luminescence of AB2O4: Cr3+ (A = Zn, Mg, B = Ga, Al) spinels: new biomarkers for in vivo imaging. Opt Mater 36(11):1901–6

    Article  CAS  Google Scholar 

  12. de Chermont QL, Chanéac C, Seguin J, Pellé F, Maîtrejean S, Jolivet JP, Gourier D, Bessodes M, Scherman D (2007) Nanoprobes with near-infrared persistent luminescence for in vivo imaging. NAS 104(22):9266–71

    Article  Google Scholar 

  13. Su J, Ye S, Yi X, Lu FQ, Yang XB, Zhang QY (2017) Influence of oxygen vacancy on persistent luminescence in ZnGa2O4: Cr 3+ and identification of electron carriers. Opt Mater Express 7(3):734–43

    Article  CAS  Google Scholar 

  14. Singh SK (2014) Red and near infrared persistent luminescence nano-probes for bioimaging and targeting applications. RSC Adv 4(102):58674–98

    Article  CAS  Google Scholar 

  15. Motloung SV, Tsega M, Dejene FB, Swart HC, Ntwaeaborwa OM, Koao LF, Motaung TE, Hato MJ (2016) Effect of annealing temperature on structural and optical properties of ZnAl2O4: 1.5% Pb2+ nanocrystals synthesized via sol–gel reaction. J Alloy Compd 677:72–9

    Article  CAS  Google Scholar 

  16. Menon SG, Hebbar DN, Kulkarni SD, Choudhari KS, Santhosh C (2017) Facile synthesis and luminescence studies of nanocrystalline red emitting Cr: ZnAl2O4 phosphor. Mater Res Bull 86:63–71

    Article  CAS  Google Scholar 

  17. Malevu TD, Ocaya RO (2015) Effect of annealing temperature on structural, morphology and optical properties of ZnO nano-needles prepared by zinc-air cell system method. Int J Electrochem Sci 10:1752–61

    Google Scholar 

  18. Williamson G, Smallman R (1956) Influences of substrate temperature on microcrystalline structure and optical properties of ZnTe thin films. Philos Mag 34:46

    Google Scholar 

  19. Guneri E, Gode F, Ulutas C, Kirmizigul F, Altindemir G (2010) Chalco Lett 7:685

    CAS  Google Scholar 

  20. Rahul Kumar B, Patel, Phil M (2010) Dissertation Submitted to Sardar Patel University

  21. Ivanova T, Harizanova A, Koutzarova T, Vertruyen B (2015) Optical characterization of sol–gel ZnO: Al thin films. Super Lattices Microstruct 85:101–11

    Article  CAS  Google Scholar 

  22. Jule LT, Dejene FB, Roro KT, Urgessa ZN, Botha JR (2016) Rapid synthesis of blue emitting ZnO nanoparticles for fluorescent applications. Phys B 497:71–7

    Article  CAS  Google Scholar 

  23. Safa S, Azimirad R, Safalou Moghaddam S, Rabbani M (2016) Investigating on photo catalytic performance of CuO micro and nanostructures prepared by different precursors. Desalin Water Treat 57(15):6723–31

    Article  CAS  Google Scholar 

  24. Somasundaram K, Abhilash KP, Sudarsan V, Selvin PC, Kadam RM (2016) Defect luminescence and lattice strain in Mn2+ doped ZnGa2O4. Phys B 491:79–83

    Article  CAS  Google Scholar 

  25. Safa S, Mokhtari S, Khayatian A, Azimirad R (2018) Improving ultraviolet photodetection of ZnO nanorods by Cr doped ZnO encapsulation process. Opt Commun 413:131–5

    Article  CAS  Google Scholar 

  26. Wang L, Hou Z, Quan Z, Lian H, Yang P, Lin J (2009) Preparation and luminescence properties of Mn2+ doped ZnGa2O4 nanofibers via electrospinning process. Mater Res 44(10):1978–83

    CAS  Google Scholar 

  27. Luan T, Liu J, Yuan X, Li JG (2017) Controlled hydrothermal synthesis and photoluminescence of nanocrystalline ZnGa2O4: Cr3+ monospheres. Nanoscale Res Lett 12(1):219

    Article  Google Scholar 

  28. Sangeetha A, Kumar KV, Kumar GN (2017) Effect of annealing temperature on the structural and magnetic properties of NiFe2O4 nanoferrites. Adv Mater Phys Chem 7(02):19

    Article  CAS  Google Scholar 

  29. Zou L, Xiang X, Wei M, Li F, Evans DG (2008) Single-crystalline ZnGa2O4 spinel phosphor via a single-source inorganic precursor route. Inorg Chem 47(4):1361–9

    Article  CAS  Google Scholar 

  30. Motloung SV, Dejene FB, Ntwaeaborwa OM, Swart HC (2014) Effects of catalyst/zinc mole fraction on ZnAl2O4: 0.01% Cr3+ nanocrystals synthesized using sol–gel process. Mater Res Express 1(4):045029

    Article  Google Scholar 

  31. Motloung SV, Dejene FB, Koao LF, Ntwaeaborwa OM, Swart HC, Motaung TE, Ndwandwe OM (2017) Structural and optical studies of ZnAl2O4: x% Cu2+ (0 < x ≤ 1.25) nanophosphors synthesized via citrate sol–gel route. Opt Mater 64:26–32

    Article  CAS  Google Scholar 

  32. Motloung SV, Dejene FB, Swart HC, Ntwaeaborwa OM (2015) Effects of Cr3+ mol% on the structure and optical properties of the ZnAl2O4: Cr3+ nanocrystals synthesized using sol–gel process. Ceram Int 41(5):6776–83

    Article  CAS  Google Scholar 

  33. Menon SG, Choudhari KS, Shivashankar SA, Santhosh C, Kulkarni SD (2017) Rapid annealing: A novel processing technique for Cr: ZnAl2O4 nanoparticles. J Alloy Compd 728:484–9

    Article  CAS  Google Scholar 

  34. Hone FG, Dejene FB (2017) Tuning the optical band gap and stoichiometric ratio of chemically synthesized lead selenide thin films by controlling film thickness. J Mater Sci Mater Electron 28(8):5979–89

    Article  CAS  Google Scholar 

  35. Bouhssira N, Abed S, Tomasella E, Cellier J, Mosbah A, Aida MS, Jacquet M (2006) Influence of annealing temperature on the properties of ZnO thin films deposited by thermal evaporation. Appl Surf Sci 252(15):5594–7

    Article  CAS  Google Scholar 

  36. Zhang W, Zhang J, Li Y, Chen Z, Wang T (2010) Preparation and optical properties of ZnGa2O4: Cr3+ thin films derived by sol–gel process. Appl Surf Sci 256(14):4702–7

    Article  CAS  Google Scholar 

  37. Tshabalala KG, Cho SH, Park JK, Pitale SS, Nagpure IM, Kroon RE, Swart HC, Ntwaeaborwa OM (2011) Luminescent properties and X-ray photoelectron spectroscopy study of ZnAl2O4: Ce3+, Tb3+ phosphor. J Alloys Compd 509(41):10115–20

    Article  CAS  Google Scholar 

  38. Hussen MK, Dejene FB, Gonfa GG (2018) Effect of citric acid on material properties of ZnGa2O4:Cr3+ nanopowder prepared by sol–gel method. Appl Phys A Mater Sci Process 124:1–10

    Article  CAS  Google Scholar 

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Acknowledgments

The authors would like to acknowledge the financial support given from the directorate of the research at University of the Free State South Africa.

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  1. Department of Physics, University of the Free State (Qwaqwa Campus), Private Bag X13, Phuthaditjhaba, 9866, South Africa

    M. K. Hussen & F. B. Dejene

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  1. M. K. Hussen
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  2. F. B. Dejene
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Correspondence to M. K. Hussen.

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Hussen, M.K., Dejene, F.B. Influence of annealing temperature on material properties of red emitting ZnGa2O4: Cr3+ nanostructures. J Sol-Gel Sci Technol 88, 454–464 (2018). https://doi.org/10.1007/s10971-018-4830-8

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  • DOI: https://doi.org/10.1007/s10971-018-4830-8

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