Export file:


  • RIS(for EndNote,Reference Manager,ProCite)
  • BibTex
  • Text


  • Citation Only
  • Citation and Abstract

Cathodoluminescence of N-doped SnO2 nanowires and microcrystals

Center for Nanoscience and Nanotechnology, National Autonomous University of Mexico, Ensenada, 22800-Baja California, Mexico

Special Issues: Nanomaterials for energy and environmental applications

We present a cathodoluminescence (CL) study of the point defects in N-doped SnO2 nanowires and microcrystals synthesized by thermal evaporation at different growth temperatures and N concentrations. SnO2:N nanowires were grown at temperatures higher than 1150 °C with N concentrations below of about 3 at.%, while irregular microcrystals were obtained at lower temperatures increasing their N concentration gradually with the growth temperature. EELS and XPS measurements confirmed that N atoms were incorporated into the SnO2 lattice as substitutional impurities (NO). TEM and EDS measurements revealed that the nanowires grew along the [001] direction by a self-catalyzed growth mechanism. CL measurements showed that the nanowires and microcrystals generated a broad emission composed by three components centered at about 2.05, 2.47 and 2.75 eV. CL spectra obtained at 300 and 100 K showed that the component of 2.05 eV decreased in intensity proportionally to the nitrogen content of samples. We attribute this effect to a decrease of oxygen vacancies in the SnO2 nanowires and microcrystals, generated by the incorporation of nitrogen in their lattice.
  Article Metrics


1. Yin XM, Li CC, Zhang M, et al. (2009) SnO2 monolayer porous hollow spheres as a gas sensor. Nanotechnology 20: 455503–455509.

2. Sambhaji SB, Gauri AT, Arif VS, et al. (2012) Structural analysis and dye-sensitized solar cell application of electrodeposited tin oxide nanoparticles. Mater Lett 79: 29–31.

3. Cannella G, Principato F, Foti M, et al. (2011) Carrier transport mechanism in the SnO2:F/p-type a-Si:H heterojunction. J Appl Phys 110: 024502–24510.

4. Zhang SG, Yin SF, Wei YD, et al. (2012) Novel MgO–SnO2 Solid Superbase as a High-Efficiency Catalyst for One-Pot Solvent-Free Synthesis of Polyfunctionalized 4H-pyran Derivatives. Catal Lett 142: 608–614.

5. Fitzgerald CB, Venkatesan M, Dorneles LS, et al. (2006) Magnetism in dilute magnetic oxide thin films based on SnO2. Phys Rev B 74: 115307–115316.

6. Chi J, Ge H, Wang J, et al. (2011) Synthesis and electrical and magnetic properties of Mn-doped SnO2 nanowires. J Appl Phys 110: 083907–083911.

7. Srivastava SK, Lejay P, Hadj-Azzem A, et al. (2014) Non-magnetic Impurity Induced Magnetism in Li-Doped SnO2 Nanoparticles. J Supercond Nov Magn 27: 487–492.

8. Srivastava SK, Lejay P, Barbara B, et al. (2010) Possible room-temperature ferromagnetism in K-doped SnO2: X-ray diffraction and high-resolution transmission electron microscopy study. Phys Rev B 82: 193203–193207.

9. Datta S, Das B (1990) Electronic analog of the electro‐optic modulator. Appl Phys Lett 56: 665–667.    

10. Monsma DJ, Lodder JC, Popma TJA, et al. (1995) Perpendicular Hot Electron Spin-Valve Effect in a New Magnetic Field Sensor: The Spin-Valve Transistor. Phys Rev Lett 74: 5260–5263.    

11. Long R, English NJ (2009) Density functional theory description of the mechanism of ferromagnetism in nitrogen-doped SnO2. Phys Lett A 374: 319–322.    

12. Zhang Y, Liu H, Qin H, et al. (2011) Ferromagnetism induced by intrinsic defects and nitrogen substitution in SnO2 nanotube. Appl Surface Sci 257: 10206–10210.

13. Sarkar A, Sanyal D, Nath P, et al. (2015) Defect driven ferromagnetism in SnO2: a combined study using density functional theory and positron annihilation spectroscopy. RCS Adv 5: 1148–1152.

14. Wang H, Yan Y, Li K, et al. (2010) Role of intrinsic defects in ferromagnetism of SnO2: First-principles calculations. Phys Status Solid B 247: 444–448.

15. Caskey CM, Seabold JA, Stevanovic V, et al. (2015) Semiconducting properties of spinel tin nitride and other IV3N4 polymorphs. J Mater Chem C 3: 1389–1396.

16. Ching WY, Rulis P (2006) Ab-initio calculations of the electronic structure and spectroscopic properties of spinel γ-Sn3N4. Phys Rev B 73: 45202.    

17. Pan SS , Li GH , Wang LB, et al. (2009) Atomic nitrogen doping and p-type conduction in SnO2. Appl Phys Lett 95: 222112–222114.

18. Kumar RR, Rao KN, Phani AR (2013) Self catalytic growth of SnO2 branched nanowires by thermal evaporation. Mater Lett 92: 243–246.

19. Qin L, Xu J, Dong X, et al. (2008) The template-free synthesis of square-shaped SnO2 nanowires: the temperature effect and acetone gas sensors. Nanotechnology 19: 185705–185712.

20. Herrera M, Maestre D, Cremades A, et al. (2013) Growth and Characterization of Mn Doped SnO2 Nanowires, Nanobelts, and Microplates. J Phys Chem C 117: 8997–9003.

21. Maestre D, Cremades A, Piqueras J (2005) Growth and luminescence properties of micro- and nanotubes in sintered tin oxide. J Appl Phys 97: 44316–43319.    

22. Luo S, Fan J, Liu W, et al. (2006) Synthesis and low-temperature photoluminescence properties of SnO2 nanowires and nanobelts. Nanotechnology 17: 1695–1699.

23. Kim S, Lim T, Ju S (2011) Fabrication of reliable semiconductor nanowires by controlling crystalline structure. Nanotechnology 22: 305704–305709.

24. Shajira PS, Junaid BM, Nair BB, et al. (2014) Energy band structure investigation of blue and green light emitting Mg doped SnO2 nanostructures synthesized by combustion method. J Lumin 145: 425–429.

25. Liu LZ, Xu JQ, Wu XL, et al. (2013) Optical identification of oxygen vacancy types in SnO2 nanocrystals. Appl Phys Lett 102: 031916–031919.

26. Zhou XT, Heigl F, Murphy MW, et al. (2006) Time-resolved x-ray excited optical luminescence from SnO2 nanoribbons: Direct evidence for the origin of the blue luminescence and the role of surface states. Appl Phys Lett 89: 213109–213111.

Copyright Info: © 2016, Manuel Herrera, et al., licensee AIMS Press. This is an open access article distributed under the terms of the Creative Commons Attribution Licese (http://creativecommons.org/licenses/by/4.0)

Download full text in PDF

Export Citation

Article outline

Show full outline
Copyright © AIMS Press All Rights Reserved