OSA's Digital Library

Energy Express

Energy Express

  • Editor: Bernard Kippelen
  • Vol. 20, Iss. S1 — Jan. 2, 2012
  • pp: A69–A74

Brightly photoluminescent phosphor materials based on silicon quantum dots with oxide shell passivation

Chang-Ching Tu, Qifeng Zhang, Lih Y. Lin, and Guozhong Cao  »View Author Affiliations

Optics Express, Vol. 20, Issue S1, pp. A69-A74 (2012)

View Full Text Article

Enhanced HTML    Acrobat PDF (908 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



We demonstrate silicon-based phosphor materials which exhibit bright photoluminescence from near-infra-red to green. The colloidal composites which are composed of silicon quantum dots (SiQDs) attached on micro-size silicon particles are synthesized by electrochemical etching of silicon wafers and then dispersed in ethanol. Subsequently, isotropic etching by HF/HNO3 mixture controls the size so as the emission wavelength of SiQDs, and forms an oxide passivating shell. The phosphors can further react with alkoxysilanes to form a stable suspension in non-polar solvents for solution-processing. The resulting red-light-emitting SiQD-based phosphors in chloroform exhibit photoluminescence external quantum efficiency of 15.9%. Their thin films can be efficiently excited by InGaN light-emitting diodes and are stable in room condition.

© 2011 OSA

OCIS Codes
(160.2540) Materials : Fluorescent and luminescent materials
(250.5230) Optoelectronics : Photoluminescence
(160.4236) Materials : Nanomaterials

ToC Category:
Fluorescent and Luminescent Materials

Original Manuscript: October 6, 2011
Revised Manuscript: November 16, 2011
Manuscript Accepted: November 18, 2011
Published: December 8, 2011

Chang-Ching Tu, Qifeng Zhang, Lih Y. Lin, and Guozhong Cao, "Brightly photoluminescent phosphor materials based on silicon quantum dots with oxide shell passivation," Opt. Express 20, A69-A74 (2012)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. K. Sanderson, “Quantum dots go large,” Nature459(7248), 760–761 (2009). [CrossRef] [PubMed]
  2. K.-S. Cho, E. K. Lee, W.-J. Joo, E. Jang, T.-H. Kim, S. J. Lee, S.-J. Kwon, J. Y. Han, B.-K. Kim, B. L. Choi, and J. M. Kim, “High-performance crosslinked colloidal quantum-dot light-emitting diodes,” Nat. Photonics3(6), 341–345 (2009). [CrossRef]
  3. W. K. Bae, J. Kwak, J. W. Park, K. Char, C. Lee, and S. Lee, “Highly efficient green-light-emitting diodes based on CdSe@ZnS quantum dots with a chemical-composition gradient,” Adv. Mater. (Deerfield Beach Fla.)21(17), 1690–1694 (2009). [CrossRef]
  4. Y.-H. Niu, A. M. Munro, Y.-J. Cheng, Y. Tian, M. S. Liu, J. Zhao, J. A. Bardecker, I. J.-L. Plante, D. S. Ginger, and A. K.-Y. Jen, “Improved performance from multilayer of quantum dot light-emitting diodes via thermal annealing of the quantum dot layer,” Adv. Mater. (Deerfield Beach Fla.)19(20), 3371–3376 (2007). [CrossRef]
  5. H.-S. Chen, C.-H. Hsu, and H.-Y. Hong, “InGaN-CdSe-ZnSe quantum dots white LEDs,” IEEE Photon. Technol. Lett.18(1), 193–195 (2006). [CrossRef]
  6. H. S. Jang, H. Yang, S. W. Kim, J. Y. Han, S.-G. Lee, and D. Y. Jeon, “White light-emitting diodes with excellent color rendering based on organically capped CdSe quantum dots and Sr3SiO5:Ce3+,Li+ phosphors,” Adv. Mater. (Deerfield Beach Fla.)20(14), 2696–2702 (2008). [CrossRef]
  7. J. Ziegler, S. Xu, E. Kucur, F. Meister, M. Batentschuk, F. Gindele, and T. Nann, “Silica-coated InP/ZnS nanocrystals as converter material in white LEDs,” Adv. Mater. (Deerfield Beach Fla.)20(21), 4068–4073 (2008). [CrossRef]
  8. E. Jang, S. Jun, H. Jang, J. Lim, B. Kim, and Y. Kim, “White-light-emitting diodes with quantum dot color converters for display backlights,” Adv. Mater. (Deerfield Beach Fla.)22(28), 3076–3080 (2010). [CrossRef] [PubMed]
  9. Z. Ding, B. M. Quinn, S. K. Haram, L. E. Pell, B. A. Korgel, and A. J. Bard, “Electrochemistry and electrogenerated chemiluminescence from silicon nanocrystal quantum dots,” Science296(5571), 1293–1297 (2002). [CrossRef] [PubMed]
  10. C.-C. Tu, L. Tang, J. Huang, A. Voutsas, and L. Y. Lin, “Visible electroluminescence from hybrid colloidal silicon quantum dot-organic light-emitting diodes,” Appl. Phys. Lett.98(21), 213102 (2011). [CrossRef]
  11. K.-Y. Cheng, R. Anthony, U. R. Kortshagen, and R. J. Holmes, “High-efficiency silicon nanocrystal light-emitting devices,” Nano Lett.11(5), 1952–1956 (2011). [CrossRef] [PubMed]
  12. D. P. Puzzo, E. J. Henderson, M. G. Helander, Z. Wang, G. A. Ozin, and Z. Lu, “Visible colloidal nanocrystal silicon light-emitting diode,” Nano Lett.11(4), 1585–1590 (2011). [CrossRef] [PubMed]
  13. J. G. C. Veinot, “Synthesis, surface functionalization, and properties of freestanding silicon nanocrystals,” Chem. Commun. (Camb.) (40): 4160–4168 (2006). [CrossRef] [PubMed]
  14. X. Li, Y. He, S. S. Talukdar, and M. T. Swihart, “Process for preparing macroscopic quantities of brightly photoluminescent silicon nanoparticles with emission spanning the visible spectrum,” Langmuir19(20), 8490–8496 (2003). [CrossRef]
  15. L. Mangolini, E. Thimsen, and U. Kortshagen, “High-yield plasma synthesis of luminescent silicon nanocrystals,” Nano Lett.5(4), 655–659 (2005). [CrossRef] [PubMed]
  16. E. J. Henderson, J. A. Kelly, and J. G. C. Veinot, “Influence of HSiO1.5sol-gel polymer structure and composition on the size and photoluminescent properties of silicon nanocrystals,” Chem. Mater.21(22), 5426–5434 (2009). [CrossRef]
  17. G. Belomoin, J. Therrien, and M. Nayfeh, “Oxide and hydrogen capped ultrasmall blue luminescent Si nanoparticles,” Appl. Phys. Lett.77(6), 779 (2000). [CrossRef]
  18. C.-C. Tu, L. Tang, J. Huang, A. Voutsas, and L. Y. Lin, “Solution-processed photodetectors from colloidal silicon nano/micro particle composite,” Opt. Express18(21), 21622–21627 (2010). [CrossRef] [PubMed]
  19. J. M. Lauerhaas and M. J. Sailor, “Chemical modification of the photoluminescence quenching of porous silicon,” Science261(5128), 1567–1568 (1993). [CrossRef] [PubMed]
  20. X. Li, Y. He, and M. T. Swihart, “Surface functionalization of silicon nanoparticles produced by laser-driven pyrolysis of silane followed by HF-HNO3 etching,” Langmuir20(11), 4720–4727 (2004). [CrossRef] [PubMed]
  21. K. Kusova, O. Cibulka, K. Dohnalova, I. Pelant, J. Valenta, A. Fucíkova, K. Zidek, J. Lang, J. Englich, P. Matejka, P. Stepanek, and S. Bakardjieva, “Brightly luminescent organically capped silicon nanocrystals fabricated at room temperature and atmospheric pressure,” ACS Nano4(8), 4495–4504 (2010). [CrossRef] [PubMed]
  22. M. V. Wolkin, J. Jorne, P. M. Fauchet, G. Allan, and C. Delerue, “Electronic states and luminescence in porous silicon quantum dots: the role of oxygen,” Phys. Rev. Lett.82(1), 197–200 (1999). [CrossRef]
  23. A. G. Cullis, L. T. Canham, and P. D. J. Calcott, “The structural and luminescence properties of porous silicon,” J. Appl. Phys.82(3), 909–965 (1997). [CrossRef]
  24. S. Nizamoglu, T. Ozel, E. Sari, and H. V. Demir, “White light generation using CdSe/ZnS core-shell nanocrystals hybridized with InGaN/GaN light emitting diodes,” Nanotechnology18(6), 065709 (2007). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


Fig. 1 Fig. 2 Fig. 3

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited