MultiplemagnificationeffectsofCe3+ionsonnear-infraredpersistentluminescenceofCr-dopedLaAlO3资源-CSDN文库

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Multiple magnification effects of Ce3+ ions on near-infrared persistent luminescence of Cr-doped LaAlO3 标题中提到的是“Multiple magnification effects of Ce3+ ions on near-infrared persistent luminescence of Cr-doped LaAlO3”，可以分解出两个主要的科学概念：一是“Cr-doped LaAlO3”，即铬离子掺杂的铝酸镧，这是一种材料体系；二是“near-infrared persistent luminescence”，指的是这种材料展现出的近红外长余辉现象。同时，强调了“Ce3+ ions”即铈离子在这一现象中起到了“Multiple magnification effects”，即多重增强作用。描述中再次强调了上述概念，并指出通过固态反应合成的Ce3+/Cr3+共掺杂的LaAlO3作为一种近红外长余辉材料，相比只掺杂Cr3+的LaAlO3，其近红外余辉亮度提高了超过一个数量级。研究通过分析光致发光(photoluminescence)、光致发光激发(photoluminescence excitation)和热释光(Thermo-luminescence)光谱，以及余辉衰减行为，揭示了Ce3+离子到Cr3+离子的能量转移过程和由Ce3+离子掺杂所形成的额外高效的陷阱是提升近红外长余辉性能的原因。从【部分内容】中，我们能读到关于研究的具体内容，比如在Ce3+/Cr3+共掺杂的LaAlO3中，实现了在约735nm波长（Cr3+: 2E→4A2跃迁）附近的近红外余辉的显著增强。研究者们通过综合分析这些光谱特性，确定了长余辉性能的提升既来源于Ce3+到Cr3+的持续能量转移过程，也得益于Ce3+掺杂所产生的额外高效的陷阱。进一步理解这段描述，我们可以得知，当Ce3+离子被掺入Cr3+掺杂的LaAlO3中时，它不仅通过持续的能量转移过程增强了近红外区的长余辉特性，还通过形成额外的高效率陷阱提升了材料的长余辉性能。这种材料性能的显著提升开辟了发展高效非磷酸盐基近红外长余辉磷光体的新途径。在本研究的参考文献中，列举了一些相关的研究工作，例如D.Jia等人在2002年发表的关于CaAl2O4中Tb3+和Ce3+掺杂后的绿色磷光现象的研究，以及J.S.Kim等人在2004年关于一种单相全彩色Ba3MgSi2O8:Eu2+, Mn2+磷光体用于白光LED的研究等。这些工作为本研究提供了理论和技术基础。综合上述信息，该研究的重要知识点可以详细归纳为： 1. 材料体系：Ce3+/Cr3+共掺杂的LaAlO3，这是一种用于实现近红外长余辉的材料体系。 2. 长余辉现象：即物质在停止激发后，仍能够持续发光一段时间的特性，本研究中特指近红外区域的长余辉。 3. Ce3+离子作用：在LaAlO3中引入Ce3+离子，增强了Cr3+掺杂的LaAlO3的近红外长余辉亮度，提高了超过一个数量级。 4. 光谱分析：通过分析光致发光、光致发光激发和热释光光谱以及余辉衰减行为，探索了长余辉性能增强的原因。 5. 能量转移过程：Ce3+离子向Cr3+离子的能量转移过程对近红外长余辉特性有显著增强作用。 6. 高效陷阱：Ce3+掺杂产生的额外陷阱对改善长余辉性能起到了关键作用。 7. 新途径：该研究为发展高效非磷酸盐基近红外长余辉磷光体提供了新的思路和方法。 8. 光谱特性：所涉及的光谱特性分析方法为深入理解长余辉材料的微观物理过程提供了技术手段。 9. 研究进展：通过引用一系列的参考资料，展示了该研究领域的发展趋势和前人研究成果。 10. 未来应用：该研究有望推动长余辉材料在显示器件、生物成像、夜视技术等领域的应用。这项研究工作在光致发光和长余辉材料领域提供了新的实验数据和理论分析，对于理解和提高近红外长余辉磷光体的性能具有重要意义，并且为相关领域的发展提供了新的视角和技术支持。

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Multiple magnification effects of Ce

ions on

near-infrared persistent luminescence of Cr-

doped LaAlO

Yi Zhang,

Rui Huang,

2,3,

* Zhenxu Lin,

Jie Song,

Xiang Wang,

Yanqing Guo,

Chao

Song,

Ying Yu,

and John Robertson

Institute of Nanoscience and Nanotechnology, Central China Normal University, Wuhan 430079, China

Department of Physics and Electronic Engineering, Hanshan Normal University, Chaozhou, Guangdong 521041,

China

Department of Engineering, University of Cambridge, Cambridge, UK

rhuang@hstc.edu.cn

Abstract: Ce

/Cr

co-doped LaAlO

for near-infrared (NIR) long lasting

phosphors were synthesized through solid-state reaction. Incorporation of

ions into Cr

-doped LaAlO

significantly enhanced the NIR persistent

luminescence by more than one order of magnitude compared with LaAlO

doped with Cr

. Detailed analysis of the photoluminescence,

photoluminescence excitation, and Thermo-luminescence spectra, as well as

the persistent decay behavior of Ce

/Cr

co-doped LaAlO

, indicated that

the improvement of NIR persistent luminescence at around 735 nm (Cr

E→

transition) is not only originated from a persistent energy transfer

process from Ce

ions to Cr

ions, but also attributed to the extra efficient

traps created by incorporation of Ce

ions. The current work develops an

alternative approach toward the efficient NIR Cr

-doped non-gallate long-

persistence phosphors.

OCIS codes: (160.2540) Fluorescent and luminescent materials; (160.2900) Optical storage

materials; (160.4670) Optical materials; (160.4760) Optical properties.

References and links

1. D. Jia, R. S. Meltzer, W. M. Yen, W. Jia, and X. Wang, “Green phosphorescence of CaAl

: Tb

, Ce

through

persistence energy transfer,” Appl. Phys. Lett. 80(9), 1535–1537 (2002).

2. J. S. Kim, P. E. Jeon, J. C. Choi, H. L. Park, S. I. Mho, and G. C. Kim, “Warm-white-light emitting diode

utilizing a single-phase full-color Ba

MgSi

:Eu

, Mn

phosphor,” Appl. Phys. Lett. 84(15), 2931–2933

(2004).

3. B. Liu, C. Shi, and Z. Qi, “Potential white-light long-lasting phosphor: Dy

-doped aluminate,” Appl. Phys. Lett.

86(19), 191111 (2005).

4. C.-H. Huang, T.-W. Kuo, and T.-M. Chen, “Novel red-emitting phosphor Ca

Y(PO

)

:Ce

+,Mn

with energy

transfer for fluorescent lamp application,” ACS Appl. Mater. Interfaces 2(5), 1395–1399 (2010).

5. H. Lin, J. Xu, Q. Huang, B. Wang, H. Chen, Z. Lin, and Y. Wang, “Bandgap tailoring via Si doping in inverse-

garnet Mg

:Ce

persistent phosphor potentially applicable in AC-LED,” ACS Appl. Mater. Interfaces

7(39), 21835–21843 (2015).

6. R. Zhong, J. Zhang, X. Zhang, and S. Lu, “Red phosphorescence in Sr

: Cr

,Eu

,Dy

through persistent

energy transfer,” Appl. Phys. Lett. 88, 201916 (2006).

7. T. Maldiney, A. Lecointre, B. Viana, A. Bessière, M. Bessodes, D. Gourier, C. Richard, and D. Scherman,

“Controlling electron trap depth to enhance optical properties of persistent luminescence nanoparticles for in

vivo imaging,” J. Am. Chem. Soc. 133(30), 11810–11815 (2011).

8. V. Caratto, F. Locardi, G. A. Costa, R. Masini, M. Fasoli, L. Panzeri, M. Martini, E. Bottinelli, E. Gianotti, and

I. Miletto, “NIR persistent luminescence of lanthanide ion-doped rare-earth oxycarbonates: the effect of

dopants,” ACS Appl. Mater. Interfaces 6(20), 17346–17351 (2014).

9. Z. Li, J. Shi, H. Zhang, and M. Sun, “Highly controllable synthesis of near-infrared persistent luminescence

SiO

/CaMgSi

composite nanospheres for imaging in vivo,” Opt. Express 22(9), 10509–10518 (2014).

10. R. Pang, Y. Jia, R. Zhao, H. Li, J. Fu, W. Sun, L. Jiang, S. Zhang, C. Li, and Q. Su, “Tunable long lasting

phosphorescence due to the selective energy transfer from defects to luminescent centres via tunnelling in Mn

and Tm

co-doped zinc pyrophosphate,” Dalton Trans. 43(25), 9661–9668 (2014).

#257457

Received 15 Jan 2016; revised 8 Feb 2016; accepted 8 Feb 2016; published 25 Feb 2016

1 Mar 2016 | Vol. 6, No. 3 | DOI:10.1364/OME.6.000922 | OPTICAL MATERIALS EXPRESS 922

11. A. Abdukayum, J. T. Chen, Q. Zhao, and X. P. Yan, “Functional near infrared-emitting Cr

/Pr

co-doped zinc

gallogermanate persistent luminescent nanoparticles with superlong afterglow for in vivo targeted bioimaging,”

J. Am. Chem. Soc. 135(38), 14125–14133 (2013).

12. T. Maldiney, A. Bessière, J. Seguin, E. Teston, S. K. Sharma, B. Viana, A. J. J. Bos, P. Dorenbos, M. Bessodes,

D. Gourier, D. Scherman, and C. Richard, “The in vivo activation of persistent nanophosphors for optical

imaging of vascularization, tumours and grafted cells,” Nat. Mater. 13(4), 418–426 (2014).

13. Z. Li, Y. Zhang, X. Wu, L. Huang, D. Li, W. Fan, and G. Han, “Direct Aqueous-Phase Synthesis of Sub-10 nm

“Luminous Pearls” with Enhanced in Vivo Renewable Near-Infrared Persistent Luminescence,” J. Am. Chem.

Soc. 137(16), 5304–5307 (2015).

14. Y. Li, S. Zhou, Y. Li, K. Sharafudeen, Z. Ma, G. Dong, M. Peng, and J. Qiu, “Long persistent and photo-

stimulated luminescence in Cr

-doped Zn–Ga–Sn–O phosphors for deep and reproducible tissue imaging,” J.

Mater. Chem. C Mater. Opt. Electron. Devices 2(15), 2657–2663 (2014).

15. A. Bessière, S. Jacquart, K. Priolkar, A. Lecointre, B. Viana, and D. Gourier, “ZnGa

:Cr

: a new red long-

lasting phosphor with high brightness,” Opt. Express 19(11), 10131–10137 (2011).

16. Z. Pan, Y. Y. Lu, and F. Liu, “Sunlight-activated long-persistent luminescence in the near-infrared from Cr

doped zinc gallogermanates,” Nat. Mater. 11(1), 58–63 (2011).

17. M. Allix, S. Chenu, E. Véron, T. Poumeyrol, E. A. K. Boudjelthia, S. Alahraché, F. Porcher, D. Massiot, and F.

Fayon, “Considerable improvement of long-persistent luminescence in germanium and tin substituted ZnGa

,”

Chem. Mater. 25(9), 1600–1606 (2013).

18. Y. Li, Y. Y. Li, R. Chen, K. Sharafudeen, S. Zhou, M. Gecevicius, H. Wang, G. Dong, Y. Wu, X. Qin, and J.

Qiu, “Tailoring of the trap distribution and crystal field in Cr

-doped non-gallate phosphors with near-infrared

long-persistence phosphorescence,” NPG Asia Mater. 7, 38 (2015).

19. J. Ueda, K. Kuroishi, and S. Tanabe, “Bright persistent ceramic phosphors of Ce

-Cr

-codoped garnet able to

store by blue light,” Appl. Phys. Lett. 104(10), 101904 (2014).

20. A. Watras, R. Pązik, and P. J. Dereń, “Optical properties of Ce

doped ABO

perovskites (A=La, Gd, Y and

B=Al, Ga, Sc),” J. Lumin. 133, 35–38 (2013).

21. R. Gillen, S. J. Clark, and J. Robertson, “Nature of the electronic band gap in lanthanide oxides,” Phys. Rev. B

87(12), 125116 (2013).

22. Y. Katayama, H. Kobayashi, and S. Tanabe, “Deep-red persistent luminescence in Cr

-doped LaAlO

perovskite phosphor for in vivo imaging,” Appl. Phys. Express 8(1), 012102 (2015).

23. R. Chen, “Glow curves with general order kinetics,” J. Electrochem. Soc. 116(9), 1254–1257 (1969).

24. C. Liu, Z. Xia, M. Chen, M. S. Molokeev, and Q. Liu, “Near-infrared luminescence and color tunable

chromophores based on Cr

-doped mullite-type Bi

(Ga,Al)

solid solutions,” Inorg. Chem. 54(4), 1876–1882

(2015).

25. C. Liu, Z. Xia, M. Chen, M. S. Molokeev, and Q. Liu, “Synthesis, crystal structure, and enhanced luminescence

of garnet-type Ca

:Cr

by codoping Bi

,” J. Am. Ceram. Soc. 97(8), 2573–2579 (2014).

26. J. X. Meng, J. Q. Li, Z. P. Shi, and K. W. Cheah, “Efficient energy transfer for Ce to Nd in Nd/Ce codoped

yttrium aluminum garnet,” Appl. Phys. Lett. 93(22), 221908 (2008).

27. D. Yelin, D. Oron, S. Thiberge, E. Moses, and Y. Silberberg, “Interionic Energy Transfer in Y

: Ce

, Cr

Phosphor,” Opt. Express 159(4), F68–F72 (2012).

1. Introduction

Long lasting phosphors (LLPs) are known for their persistent luminescence, which can emit

for hours after terminating irratation. LLPs exhibit potential in night-vision assistants,

security signs, and dial displays [1–5]. In recent years, transition metal-activated (such as

or Mn

) LLPs have attracted much interests because of their perfect near-infrared (NIR)

persistent luminescence, excellent chemical stability, and suitable emission range [6–10]. In

particular, NIR LLPs can be used as long-term optical probes for in vivo imaging systems

because these phosphors feature high signal-to-noise ratio and deep penetration and do not

require in situ excitation [11–13].

The majority of studies on NIR LLPs have focused on Cr

. The 3d

electron

configuration of Cr

can feature different types of emission depending on the crystal-field

environment of the host; Cr

exhibits narrow-band emission at around 700 nm because of the

spin-forbidden

E→

transition or broadband emission ranging from 650 nm to 1600 nm

because of the spin-allowed

→

transition. Cr

presents strong ability to substitute for

(with a similar ionic radius) in octahedral coordination; as such, gallate materials used as

host have been intensively investigated [14–17]. Pan et al. developed a series of Cr

-doped

zinc gallogermanate NIR persistent phosphors, which exhibit a super-long afterglow of more

than 360 h [16]. Allix et al. demonstrated a considerable improvement on NIR persistent

luminescence by partially substituting Ge and Sn to form the Zn

1+x

2−2x

(Ge/Sn)

solid

solution [17]. Recently, Li et al. reported an earth-abundant and inexpensive NIR

#257457

Received 15 Jan 2016; revised 8 Feb 2016; accepted 8 Feb 2016; published 25 Feb 2016

1 Mar 2016 | Vol. 6, No. 3 | DOI:10.1364/OME.6.000922 | OPTICAL MATERIALS EXPRESS 923

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