Effects of sodium dodecyl sulfate surfactant on up-conversion luminescence of Er3+/Yb3+ -codoped NaLa (MoO4)2 nanocolloidal phosphor prepared by pulsed laser ablation in water
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Er3+/Yb3+-codoped NaLa(MoO4)2 colloidal nanocrystals were synthesized by pulsed laser ablations in de-ionized water andsodium dodecyl sulfate (NaC12H25SO4, SDS) aqueous solution for up-conversion (UC) luminescence bio-labeling applications. The influences of the SDS molecules on the crystallinities, crystal morphologies, crystallite sizes, and UC luminescence propertiesof the prepared Er3+/Yb3+-codoped NaLa(MoO4)2 colloidal nanocrystals were investigated in detail. Under a 980-nm excitation,the Er3+/Yb3+-codoped nanocolloidal NaLa(MoO4)2 suspension exhibited a weak red emission near 670 nm and strong green UCemissions at 530 and 550 nm, corresponding to the intra 4f transitions of Er3+ (4F9/2, 2H11/2 , 4S3/2)→Er3+ (4I15/2). When the SDSsolution was used, a smaller average crystallite size, narrower size distribution, and enhanced UC luminescence were observed. These characteristics were attributed to the amphoteric SDS molecules attached to the positively charged Er3+/Yb3+-codopedNaLa(MoO4)2 colloidal nanocrystals, effectively occupying the oxygen defect on their surfaces. The Er3+/Yb3+-codopednanocrystalline NaLa(MoO4)2 suspension prepared in the SDS solution exhibited a remarkably strong green emission visibleto the naked eyes.
Abstract
Er3+/Yb3+-codoped NaLa(MoO4)2 colloidal nanocrystals were synthesized by pulsed laser ablations in de-ionized water andsodium dodecyl sulfate (NaC12H25SO4, SDS) aqueous solution for up-conversion (UC) luminescence bio-labeling applications. The influences of the SDS molecules on the crystallinities, crystal morphologies, crystallite sizes, and UC luminescence propertiesof the prepared Er3+/Yb3+-codoped NaLa(MoO4)2 colloidal nanocrystals were investigated in detail. Under a 980-nm excitation,the Er3+/Yb3+-codoped nanocolloidal NaLa(MoO4)2 suspension exhibited a weak red emission near 670 nm and strong green UCemissions at 530 and 550 nm, corresponding to the intra 4f transitions of Er3+ (4F9/2, 2H11/2 , 4S3/2)→Er3+ (4I15/2). When the SDSsolution was used, a smaller average crystallite size, narrower size distribution, and enhanced UC luminescence were observed. These characteristics were attributed to the amphoteric SDS molecules attached to the positively charged Er3+/Yb3+-codopedNaLa(MoO4)2 colloidal nanocrystals, effectively occupying the oxygen defect on their surfaces. The Er3+/Yb3+-codopednanocrystalline NaLa(MoO4)2 suspension prepared in the SDS solution exhibited a remarkably strong green emission visibleto the naked eyes.
참고문헌 (34)
- N. Menyuk, , Appl. Phys. Lett, 21, pp.159~165 (1972)
- P. Li, , Adv. Mater, 21, pp.1945~1948 (2009)
- L. Wang, , Angew. Chem. Int. Ed, 44, pp.6054~6057 (2005)
- Shalav, , Energy Mater. Sol. Cell, 91, pp.829~842 (2007)
- E. Downing, , Science, 273, pp.1185~1189 (1996)
- G. Glaspell, , J. Phys. Chem. C, 112, pp.11527~11531 (2008)
- T. Anh, , J. Nanomat, pp.48247~43857 (2007)
- A. B. Campos, , Appl. Phys. Lett, 91, pp.051923~ (2007)
- L. Macalik, , J. alloys Compd, 341, pp.226~232 (2002)
- Y. W. Wei, , J. Alloys Compd, 484, pp.529~534 (2009)
- L. H. C. Andrade, , J. Phys. Condens. Matter, 18, pp.7883~7894 (2006)
- M. S. Sibbald, , J. Phys. Chem, 100, pp.4672~4678 (1996)
- J. Heddersen, , Appl. Spectrosc, 47, pp.1959~1964 (1993)
- A. V. Simakin, , Chem. Phys. Lett, 348, pp.182~186 (2001)
- R. A. Ganeev, , Opt. Commun, 240, pp.437~448 (2004)
- G. A. Shafeev, , Appl. Phys. A, 78, pp.307~309 (2004)
- Iwabuchi, , J. Phys. Chem. B, 108, pp.10863~10871 (2004)
- K. V. Anikin, , Chem. Phys. Lett, 366, pp.357~360 (2002)
- R. A. Ganeev, , Appl. Phys. B, 80, pp.595~601 (2005)
- T. Tsuji, , Appl. Surf. Sci, 243, pp.214~219 (2005)
- K. M. Kim, , J. Alloy. Compd, 576, pp.195~200 (2013)
- K. Cho, , J. Vac. Sci. & Tech. B, 33, pp.041201~ (2015)
- Kyoungwon Cho, "Pulsed-laser-assisted Synthesis of a Tm3+", Yb3+ Co-doped CaMoO4 Colloidal Nanocrystal and Its Upconversion Luminescence, 2016, pp.68(1), 22~27[DOI]
- 이정일, "Synthesis of Scheelite Structural Yb3+, Er3+ Co-doped NaLa(MoO4)2 and Its Green Upconversion Luminescence", Journal of the Korean Physical Society, 65(10), pp.1644~1648 (2014), 한국물리학회
- R. Chadha, , Spectrochim. Acta A, 150, pp.664~670 (2015)
- H. Vatanparast, , Colloid. Surface A, 513, pp.430~441 (2017)
- K. Cho, , J. Nanosci. Nanotechnol, 16, pp.6344~6349 (2016)
- V. A. Ageev, , J. Appl. Spectr, 64, pp.683~688 (1997)
- T. Sakka, , J. Chem. Phys, 112, pp.8645~8653 (2000)
- Y. -H. Chen, , Colloid. Surface A, 197, pp.133~139 (2002)
- F. Auzel, , Chem. Rev, 104, pp.139~174 (2004)
- F. Wang, , Chem. Soc. Rev, 38, pp.976~989 (2009)
- J. -H. Zeng, , Adv. Mater, 17, pp.2119~2123 (2005)
- G. -S. Yi, , J. Mater. Chem, 15, pp.4460~4464 (2005)