Skip to main content
SpringerLink
Log in

Wide near-infrared II emissions and LED application of Y2Ti2O7: Cr3+/Yb3+/Nd3+ phosphors

  • Published:
Applied Physics A Aims and scope Submit manuscript

Abstract

Y2Ti2O7:Cr3+/Yb3+/Nd3+ phosphors with broadband near-infrared emission were developed by a high-temperature solid-state method. Under the excitation of 405 nm light, it shows broadband near-infrared emission from 650 to 1050 nm. Y2Ti2O7:Cr3+/Yb3+/Nd3+ phosphors present excellent bright luminescence and thermal quenching resistance. The energy transfer mechanism between Cr3+/Nd3+/Yb3+ ions was elucidated. By using the energy transfer from Cr3+-Nd3+-Yb3+, the excitation efficiency of Yb3+ at 405 nm is greatly improved, and the strong NIR emission centered at approximately 975 nm is well coupled with the absorption band of silicon solar cells. The Y2Ti2O7:0.005Cr3+/0.1Yb3+/0.01Nd3+ phosphors were assembled with a commercial 365 nm InGaN chip to fabricate a near-infrared LED device that can work under operating electric currents of 100–900 mA. In short, Y2Ti2O7:Cr3+/Yb3+/Nd3+ phosphors are suitable for near-infrared LED applications.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12

Similar content being viewed by others

Data availability

Data that support the findings of this study are available from the corresponding author upon reasonable request.

References

  1. K. Omri, I. Najeh, S. Mnefgui, N. Alonizan, S. Gouadria, Microstructure, AC conductivity and complex modulus analysis of Ca-ZnO nanoparticles for potential optoelectronic applications. Mater. Sci. Eng. B 297, 116738 (2023)

    Google Scholar 

  2. K. Omri, L. El Mir, Effect of manganese concentration on photoluminescence properties of Zn2SiO4: Mn nanophosphor material. Superlattices Microstruct. 70, 24–32 (2014)

    ADS  Google Scholar 

  3. K. Omri, R. Lahouli, L. El Mir, Microstructure and electrical properties of silica-Zn2SiO4-Mn glass-ceramics as composite for optoelectronic devices. Results Phys. 12, 2141–2145 (2019)

    ADS  Google Scholar 

  4. K. Omri, F. Alharbi, Microstructural properties and improvement in photoluminescence thermometry of Mn-activated single-phased Zn–SO–Mn phosphors. J. Mater. Sci. Mater. Electron. 32, 24229–24239 (2021)

    Google Scholar 

  5. L. Li, D. Wang, D. Zhang, W. Ran, Y. Yan, Z. Li, G. Shen, Near-infrared light triggered self-powered mechano-optical communication system using wearable photodetector textile. Adv. Funct. Mater. 31, 2104782 (2021)

    Google Scholar 

  6. J. Liu, J. Jiang, S. Wang, T. Li, X. Jing, Y. Liu, L. Shen, Fast response organic tandem photodetector for visible and near-infrared digital optical communications. Small 17, 2101316 (2021)

    Google Scholar 

  7. P.W. Barone, S. Baik, D.A. Heller, M.S. Strano, Near-infrared optical sensors based on single-walled carbon nanotubes. Nat. Mater. 4, 86–92 (2005)

    ADS  Google Scholar 

  8. L. Jiang, S. Zhou, J. Yang, H. Wang, H. Yu, H. Chen, H. Li, Near-infrared light responsive TiO2 for efficient solar energy utilization. Adv. Funct. Mater. 32, 2108977 (2012)

    Google Scholar 

  9. M.Q. Yang, M. Gao, M. Hong, G.W. Ho, Visible-to-NIR photon harvesting: progressive engineering of catalysts for solar-powered environmental purification and fuel production. Adv. Mater. 30, 1802894 (2018)

    Google Scholar 

  10. G. Gao, D. Busko, R. Joseph, I.A. Howard, A. Turshatov, B.S. Richards, Highly Efficient La2O3:Yb3+, Tm3+ single-band NIR to NIR upconverting microcrystals for anti-counterfeiting applications. ACS Appl. Mater. Interfaces 10, 39851–39859 (2018)

    Google Scholar 

  11. G.J. Ughi, H. Wang, E. Gerbaud, J.A. Gardecki, A.M. Fard, E. Hamidi, P. Vacas-Jacques, M. Rosenberg, F.A. Jaffer, G.J. Tearney, Clinical characterization of coronary atherosclerosis with dual-modality OCT and near-infrared autofluorescence imaging. JACC Cardiovasc. Imaging 9, 1304–1314 (2016)

    Google Scholar 

  12. G. Hong, A.L. Antaris, H. Dai, Near-infrared fluorophores for biomedical imaging. Nat. Biomed. Eng. 1, 0010 (2017)

    Google Scholar 

  13. H. Li, Q. Yao, J. Fan, J. Du, J. Wang, X. Peng, A two-photon NIR to NIR fluorescent probe for imaging hydrogen peroxide in living cells. Biosens. Bioelectron. 94, 536–543 (2017)

    Google Scholar 

  14. X. Yang, Y. Wang, R. Liu, Y. Zhang, J. Tang, E.B. Yang, Y. Ye, A novel ICT-based two photon and NIR fluorescent probe for labile Fe2+ detection and cell imaging in living cells. Sens. Actuators B Chem. 288, 217–224 (2019)

    Google Scholar 

  15. S. Zhu, B.C. Yung, S. Chandra, G. Niu, A.L. Antaris, X. Chen, Near-infrared-II (NIR-II) bioimaging via off-peak NIR-I fluorescence emission. Theranostics. 8, 4141 (2018)

    Google Scholar 

  16. J. Xiang, J. Chen, N. Zhang, H. Yao, C. Guo, Far red and near infrared double-wavelength emitting phosphor Gd2ZnTiO6: Mn4+, Yb3+ for plant cultivation LEDs. Dyes Pigm. 154, 257–262 (2018)

    Google Scholar 

  17. Y. Lv, Y. Jin, T. Sun, J. Su, C. Wang, G. Ju, Y. Hu, Visible to NIR downshifting and NIR to visible upconversion luminescence in Ca14Zn6Ga10O35: Mn4+, Ln3+(Ln= Nd, Yb, Er). Dyes Pigm. 161, 137–146 (2019)

    Google Scholar 

  18. C. Matuszewska, L. Marciniak, The influence of host material on NIR II and NIR III emitting Ni2+ based luminescent thermometers in ATiO3: Ni2+ (A= Sr, Ca, Mg, Ba) nanocrystals. J. Lumin. 223, 117221 (2020)

    Google Scholar 

  19. X. Wei, S. Huang, Y. Chen, C. Guo, M. Yin, W. Xu, Energy transfer mechanisms in Yb3+ doped YVO4 near-infrared downconversion phosphor. J. Appl. Phys. 107, 103107 (2010)

    ADS  Google Scholar 

  20. W. Qin, D. Zhang, D. Zhao, L. Wang, K. Zheng, Near-infrared photocatalysis based on YF3: Yb3+, Tm3+/TiO2 core/shell nanoparticles. ChemComm. 46, 2304–2306 (2010)

    Google Scholar 

  21. A. Abdukayum, J.T. Chen, Q. Zhao, X.P. Yan, Functional near infrared-emitting Cr3+/Pr3+ codoped zinc gallogermanate persistent luminescent nanoparticles with superlong afterglow for in vivo targeted bioimaging. J. Am. Chem. Soc. 135, 14125–14133 (2013)

    Google Scholar 

  22. D.C. Rodriguez Burbano, S.K. Sharma, P. Dorenbos, B. Viana, J.A. Capobianco, Persistent and photostimulated red emission in CaS: Eu2+,Dy3+ nanophosphors. Adv. Opt. Mater. 3, 551–557 (2015)

  23. Z. Jia, C. Yuan, Y. Liu, X. Wang, P. Sun, L. Wang, J. Jiang, Strategies to approach high performance in Cr3+doped phosphors for high-power NIR-LED light sources. Light Sci. Appl. 9, 86 (2020)

    ADS  Google Scholar 

  24. E. Song, H. Ming, Y. Zhou, F. He, J. Wu, Z. Xia, Q. Zhang, Cr3+ Doped Sc based fluoride enabling highly efficient near infrared luminescence: a case study of K2NaScF6: Cr3+. Laser Photonics Rev. 15, 2000410 (2021)

    ADS  Google Scholar 

  25. S. He, L. Zhang, H. Wu, H. Wu, G. Pan, Z. Hao, J. Zhang, Efficient super broadband NIR Ca2LuZr2Al3O12:Cr3+, Yb3+ garnet phosphor for pc-LED light source toward NIR spectroscopy applications. Adv. Opt. Mater. 8, 1901684 (2020)

    Google Scholar 

  26. X. Zou, X. Wang, H. Zhang, Y. Kang, X. Yang, X. Zhang, M.S. Molokeev, B. Lei, A highly efficient and suitable spectral profile Cr3+ doped garnet near-infrared emitting phosphor for regulating photomorphogenesis of plants. Chem. Eng. J. 428, 132003 (2022)

    Google Scholar 

  27. Z. Jia, C. Yuan, R. Li, P. Sun, R. Dong, Y. Liu, L. Wang, H. Jiang, J. Jiang, Electron–phonon coupling mechanisms of broadband near-infrared emissions from Cr3+ in the Ca3Sc2Si3O12 garnet. Phys. Chem. Chem. Phys. 22, 10343–10350 (2020)

    Google Scholar 

  28. G.C. Liu, M.S. Molokeev, Z.G. Xia, Structural rigidity control toward Cr3+based broadband near-infrared luminescence with enhanced thermal stability. Chem. Mater. 34, 1376–1384 (2022)

    Google Scholar 

  29. G. Liu, T. Hu, M.S. Molokeev, Z. Xia, Li/Na substitution and Yb3+ codoping enabling tunable near-infrared emission in LiIn2SbO6:Cr3+ phosphors for light-emitting diodes, iScience. 24, 102250 (2021)

  30. C. Wang, Y. Zhang, X. Han, D. Hu, D. He, X. Wang, H. Jiao, Energy transfer enhanced broadband near-infrared phosphors: Cr3+/Ni2+ activated ZnGa2O4–Zn2SnO4 solid solutions for the second NIR window imaging. J. Mater. Chem. C. 9, 4583–4590 (2021)

    Google Scholar 

  31. Y. Yan, M. Shang, S. Huang, Y. Wang, Y. Sun, P. Dang, J. Lin, Photoluminescence properties of AScSi2O6:Cr3+ (A = Na and Li) phosphors with high efficiency and thermal stability for near-infrared phosphor-converted light-emitting diode light sources. ACS Appl. Mater. Interfaces 14, 8179–8190 (2022)

    Google Scholar 

  32. G.N.A. Guzman, M.H. Fang, C.H. Liang, Z. Bao, S.F. Hu, R.S. Liu, Near-infrared phosphors and their full potential: a review on practical applications and future perspectives. J. Lumin. 219, 116944 (2020)

    Google Scholar 

  33. L. Zhang, D. Wang, Z. Hao, X. Zhang, G.H. Pan, H. Wu, J. Zhang, Cr3+doped broadband NIR garnet phosphor with enhanced luminescence and its application in NIR spectroscopy. Adv. Opt. Mater. 7, 1900185 (2019)

    Google Scholar 

  34. Y. Zhang, R. Huang, H. Li, Z. Lin, D. Hou, Y. Guo, C. Zhu, Triple-Mode Emissions with invisible near-infrared after-glow from Cr3+ doped zinc aluminum germanium nanoparticles for advanced anti-counterfeiting applications. Small 16, 2003121 (2020)

    Google Scholar 

  35. X. Luo, X. Yang, S. Xiao, Conversion of broadband UV-vis ible to near infrared emission by LaMgAl11O19: Cr3+, Yb3+ phosphors. Mater. Res. Bull. 101, 73–82 (2018)

    Google Scholar 

  36. X. Wu, S. Zhao, L. Zhang, L. Dong, Y. Xu, S. Yin, H. You, Highly thermally stable Cr3+ and Yb3+ codoped Gd2GaSbO7 phosphors for broadband near-infrared applications. Dalton Trans. 50, 13459–13467 (2021)

    Google Scholar 

  37. S. He, L. Zhang, H. Wu, H. Wu, G. Pan, Z. Hao, X. Zhang, L. Zhang, H. Zhang, J. Zhang, Efficient Super Broadband NIR Ca2LuZr2Al3O12:Cr3+, Yb3+ Garnet Phosphor for pc-LED Light Source toward NIR Spectroscopy Applications. Adv. Opt. Mater. 8, 799–432 (2020)

    Google Scholar 

  38. Z. Wang, L. Zhang, L. Dong, Y. Xu, S. Yin, H. You, Luminescent properties and energy transfer of novel NIR K(Ga/Al)11O17: Cr3+, Yb3+ phosphors for solar cells, Mater. Today, Energy. 20, 134575 (2021)

  39. A.I. Popov, E.A. Kotomin, J. Maier, Basic properties of the F-type centers in halides, oxides and perovskites Basic properties of the F-type centers in halides, oxides and perovskites. Nucl Instrum Meth 268, 3084–3089 (2010)

    Google Scholar 

  40. A.I. Popov, E.A. Kotomin, M.M. Kuklja, Quantum chemical calculations of the electron center diffusion in MgO crystals, physica status solidi (b), 195, 61–66 (1996)

  41. X. Qin, Y. Li, Y. Li, Y. Wu, R. Chen, K. Sharafudeen, Z. Ma, S. Liu, D. Wu, J. Qiu, Inducing NIR long persistent phosphorescence in Cr-doped perovskite titanate via redox. J. Alloys Compd. 666, 387–391 (2016)

    Google Scholar 

  42. S. He, L. Zhang, J. Zhang, Z. Hao, H. Wu, H. Wu, Y. Luo, G. Pan, F. Liu, J. Zhang, Cr3+ and Nd3+ coactivated garnet phosphor for NIR super broadband pc-LED application. Mater. Res. Bull. 151, 111797 (2022)

    Google Scholar 

  43. P.K. Tawalare, V.B. Bhatkar, S.K. Omanwar, S.V. Moharil, Cr3+ sensitized near infrared emission in Al2O3: Cr, Nd/Yb phosphors. J. Alloys Compd. 790, 1192–1200 (2019)

    Google Scholar 

  44. L. Zhang, L. Dong, B. Shao, S. Zhao,H. You, Novel NIR LaGaO3:Cr3+,Ln3+ (Ln=Yb, Nd, Er) phosphors via energy transfer for C–Si-based solar cells Dalton Trans, 48, 11460–11468 (2019)

  45. L. Marciniak, A. Bednarkiewicz, J. Drabik, K. Trejgis, W. Strek, Knowledgeable optimization of highly sensitive YAG: Cr3+, Nd3+nanocrystals based luminescent thermometer operating in optical window of biological tissues. Phys. Chem. Chem. Phys. 19, 7343–7351 (2017)

    Google Scholar 

  46. P. Liu, J. Liu, X. Zheng, H. Luo, X. Li, Z. Yao, X. Yu, X. Shi, B. Hou, Y. Xia, An Efficient light converter YAB: Cr3+, Yb3+/Nd3+ with broadband excitation and strong nir emission for harvesting c-Si-based solar cell. J. Mater. Chem. C. 2, 5769–5777 (2014)

    Google Scholar 

  47. C. Zhong, L. Zhang, Y. Xu, X. Wu, S. Yin, X. Zhang, H. You, Novel broadband near-infrared emitting phosphor LiGe2(PO4)3: Cr3+ with tuning and enhancement of NIR emission by codoping Sb5+. J. Alloys Compd. 903, 163945 (2022)

    Google Scholar 

  48. Z. Tian, H. Yu, Z. Han, Z. Guan, S. Xu, J. Sun, Y. Cao, Y. Wang, L. Cheng, B. Chen, Luminescence properties, and anti-counterfeiting application of one-dimensional electrospun Y2Ti2O7: Ho/Yb nanostructures. Ceram. Int. 48, 27836–27848 (2022)

    Google Scholar 

  49. H.T. Zeng et al., Two-site occupation for exploring ultra-broadband near-infrared phosphor-double-perovskite La2MgZrO6:Cr3+. Chem. Mater. 31, 5245–5253 (2019)

    Google Scholar 

  50. B. Malysa, A. Meijerink, T. Jüstel, Temperature dependent Cr3+ photo-luminescence in garnets of the type X3Sc2Ga3O12 (X=Lu, Y, Gd, La). J. Lumin. 202, 523–531 (2018)

    Google Scholar 

  51. G.C. Liu et al., Two-site Cr3+ occupation in the MgTa2O6: Cr3+ phosphor toward broad-band near-infrared emission for vessel visualization. J. Mater. Chem. C 8, 9322–9328 (2020)

    Google Scholar 

  52. M. Back, J. Ueda, M.G. Brik, S. Tanabe, Pushing the limit of Boltzmann distribution in Cr3+-doped CaHfO3 for cryogenic thermometry. ACS Appl. Mater. Interfaces 12, 38325–38332 (2020)

    Google Scholar 

  53. P.A. Hansen, H. Fjellvåg, T.G. Finstad, O. Nilsen, Luminescence properties of lanthanide and ytterbium lanthanide titanate thin films grown by atomic layer deposition, Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 34, 130 (2016)

  54. S. Miao, Y. Liang, Y. Zhang, D. Chen, X.J. Wang, Broadband short-wave infrared light-emitting diodes based on Cr3+doped LiScGeO4 phosphor. ACS Appl. Mater. Interfaces 13, 36011–36019 (2021)

    Google Scholar 

  55. D. Liu, G. Li, P. Dang, Q. Zhang, Y. Wei, H. Lian, M. Shang, C.C. Lin, J. Lin, Simultaneous broadening and enhancement of Cr3+ photoluminescence in LiIn2SbO6 by chemical unit cosubstitution: night-vision and near-infrared spectroscopy detection applications. Angew. Chem. Int. Ed. 60, 14644–14649 (2021)

    Google Scholar 

  56. D. Xu, Q. Zhang, X. Wu, W. Li, J. Meng, Synthesis, luminescence properties and energy transfer of Ca2MgWO6:Cr3+, Yb3+ phosphors. Mater. Res. Bull. 110, 135–140 (2019)

    Google Scholar 

  57. K. Maciejewska, L. Marciniak, Multimodal stokes and anti-stokes luminescent thermometers based on GdP5O14 co-doped with Cr3+ and Nd3+ ions. Chem. Eng. J. 402, 126197 (2020)

    Google Scholar 

  58. L. Marciniak, A. Bednarkiewicz, Nanocrystalline NIR-to-NIR luminescent thermometer based on Cr3+, Yb3+ emission. Sens. Actuators B Chem 243, 388–393 (2017)

    Google Scholar 

  59. A. Ćirić, J. Periša, M. Medić, S. Kuzman, Z. Ristić, Ž Antić, M.D. Dramićanin, Sensitive temperature reading from intensity ratio of Cr3+ and defects’ emissions in MgTiO3: Cr3+. Ceram. Int. 47, 31915–31919 (2021)

    Google Scholar 

  60. A. Ćirić, Z. Ristić, J. Periša, Ž Antić, M.D. Dramićanin, MgAl2O4: Cr3+ luminescence thermometry probe in the physiological temperatures range. Ceram. Int. 47, 27151–27156 (2021)

    Google Scholar 

  61. S. He, L. Zhang, H. Wu, G. Pan, Z. Hao, J. Zhang, Efficient super broadband NIR Ca2LuZr2Al3O12:Cr3+, Yb3+ Garnet phosphor for pc-LED light source toward nir spectroscopy applications. Adv. Opt. Mater. 8, 1901684 (2020)

    Google Scholar 

  62. I. Mikalauskaite, G. Pleckaityte, M. Skapas, A. Zarkov, A. Katelnikovas, A. Beganskiene, Emission spectra tuning of upconverting NaGdF4: 20% Yb, 2% Er nanoparticles by Cr3+ co-doping for optical temperature sensing. J. Lumin. 213, 210–217 (2019)

    Google Scholar 

  63. W. Zhou, J. Luo, J. Fan, H. Pan, S. Zeng, L. Zhou, X. Zhang, Luminescent properties and LED application of broadband near-infrared emitting NaInGe2O6: Cr3+ phosphors. Ceram. Int. 47, 25343–25349 (2021)

    Google Scholar 

  64. R. Kang, J. Nie, X. Dou, S. Zhang, G. Ju, L. Chen, Y. Hu, Y. Li, Tunable NIR long persistent luminescence and discovery of trap-distribution-dependent excitation enhancement in transition metal doped weak-crystal-field CaZnGe2O6. J. Alloys Compd. 735, 692–699 (2018)

    Google Scholar 

  65. J. Qiu, Q. Wang, D. Zhou, Z. Long, Y. Yang, S. Hu, J. Wang, Disentangling site occupancy, cation regulation, and oxidation state regulation of the broadband near infrared emission in a chromium-doped SrGa4O7 phosphor. Inorg. Chem. Front. 7, 2313–2321 (2020)

    Google Scholar 

  66. M. Back, J. Ueda, H. Nambu, M. Fujita, A. Yamamoto, H. Yoshida, H. Tanaka, M.G. Brik, S. Tanabe, Boltzmann thermometry in Cr3+-Doped Ga2O3 polymorphs: the structure matters! Adv. Opt. Mater. 9, 2100033 (2021)

    Google Scholar 

  67. M. Back, E. Trave, J. Ueda, S. Tanabe, Ratiometric optical thermometer based on dual near-infrared emission in Cr3+-doped bismuth-based gallate host. Chem. Mater. 28, 8347–8356 (2016)

    Google Scholar 

  68. J. Ueda, M. Back, M.G. Brik, Y. Zhuang, M. Grinberg, S. Tanabe, Ratiometric optical thermometry using deep red luminescence from 4T2 and 2E states of Cr3+ in ZnGa2O4 host. Opt. Mater. 85, 510–516 (2018)

    ADS  Google Scholar 

  69. M. Back, J. Ueda, J. Xu, K. Asami, M.G. Brik, S. Tanabe, Effective ratiometric luminescent thermal sensor by Cr3+-doped mullite Bi2Al4O9 with robust and reliable performances. Adv. Opt. Mater. 8, 2000124 (2020)

    Google Scholar 

  70. G. Wei, Z. Wang, R. Li, Y. Wang, J. Li, Y. Shi, S. He, Y. Yang, Z. Yang, P. Li, Enhancement of near-infrared phosphor luminescence properties via construction of stable and compact energy transfer paths. Adv. Opt. Mater. 10, 353–358 (2022)

    Google Scholar 

  71. G. Liu, Z. Xia, Modulation of thermally stable photoluminescence in Cr3+ based near-infrared phosphors. J. Phys. Chem. Lett. 13, 5001–5008 (2022)

    Google Scholar 

  72. X. Wang, W. Li, K. Tian, E. Lewis, S. Wang, G. Brambilla, Y. Dong, X. Wu, P. Wang, Enhanced near-infrared emission in Yb3+-Cr3+ codoped KZnF3 glass ceramics excited by a solar simulator. Ceram. Int. 45, 6738–6743 (2019)

    Google Scholar 

  73. N. Mironova—Ulmane, M.G. Brik, J. Grube, G. Krieke, M.Kemere, A. Antuzevics, E. Gabrusenoks, V. Skvortsova, E. Elsts, A. Sarakovskis, M. Piasecki, A.I. Popov, EPR, optical and thermometric studies of Cr3+ ions in the α-Al2O3 synthetic single crystal, Opt. Mater., 132,112859 (2022)

  74. H. Spiridigliozzi, L. Museur, V. Trannoy, E. Gautron, A. Kotlov, E. Feldbach, F. Schoenstein, A. Kanaev, Grain-size effect on Cr3+ and F-centres photoluminescence in nanophase MgAl2O4 ceramics. J. Am. Ceram. Soc. 43, 6349–6355 (2023)

    Google Scholar 

  75. N. Mironova-Ulmane, M.G. Brik, J. Grube, G. Krieke, A. Antuzevics, V. Skvortsova, M. Kemere, E. Elsts, A. Sarakovskis, M. Piasecki, A.I. Popov, Spectroscopic studies of Cr3+ ions in natural single crystal of magnesium aluminate spinel MgAl2O4. Opt. Mater. 121, 111496 (2021)

    Google Scholar 

Download references

Acknowledgements

This work was financially supported by the National Natural Science Foundation of China (Grant Nos. 11704056, 12274049 and 11774042) and Fundamental Research Funds for the Central Universities (grant No. 3132023519).

Author information

Authors and Affiliations

  1. Department of Physics, Dalian Maritime University, No. 1, Linghai Road, Dalian, 116026, Liaoning, People’s Republic of China

    Zhanwen Han, Hongquan Yu, Shanshan Cong, Jiashi Sun, Xiangping Li & Baojiu Chen

  2. Department of Physics and Astronomy, University College London, Gower St., London, WC1E 6BT, UK

    Tianshuo Liu

Authors
  1. Zhanwen Han
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Hongquan Yu
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Shanshan Cong
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Tianshuo Liu
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. Jiashi Sun
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. Xiangping Li
    View author publications

    You can also search for this author in PubMed Google Scholar

  7. Baojiu Chen
    View author publications

    You can also search for this author in PubMed Google Scholar

Contributions

ZH and HY managed the long-term experiments and data analyses and processed the main manuscript. Other authors contributed to the discussion and revision of the experimental results.

Corresponding authors

Correspondence to Hongquan Yu or Baojiu Chen.

Ethics declarations

Conflict of interest

The authors declare no conflicts of interest regarding the content of this article.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Supplementary Information

Below is the link to the electronic supplementary material.

Supplementary file1 (DOCX 250 KB)

Rights and permissions

Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Han, Z., Yu, H., Cong, S. et al. Wide near-infrared II emissions and LED application of Y2Ti2O7: Cr3+/Yb3+/Nd3+ phosphors. Appl. Phys. A 129, 764 (2023). https://doi.org/10.1007/s00339-023-07023-z

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s00339-023-07023-z

Keywords

Search

Navigation