Straightforward fabrication of stable white LEDs by embedding of inorganic UV-LEDs into bulk polymerized polymethyl-methacrylate doped with organic dyes

Scientific Reports

Volumn 4, Issue , 2014, Pages

  Di Martino, Daniela ^a   Beverina, Luca ^a   Sassi, Mauro ^a   Brovelli, Sergio ^a   Tubino, Riccardo ^a   Meinardi, Francesco ^a  

^a UNIVERSITY OF MILANO BICOCCA   (Italy)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 84897899723     PISSN: None     EISSN: 20452322     Source Type: Journal    
DOI: 10.1038/srep04400     Document Type: Article

References (27)

1. Schubert, E. F. & Kim, J. K. Solid-state light sources getting smart. Science 308, 1274-1278, doi:10.1126/science.1108712 (2005). (Pubitemid 40746117)
2. Basic Research Needs for Solid-State Lighting, Report of the Basic Energy Sciences Workshop on Solid-State Lighting. (May 22-24, 2006), U.S. Department of Energy http://science.energy.gov/,/media/bes/pdf/reports/files/ssl-rpt.pdf.
3. Smet, P. F., Parmentier, A. B. & Poelman, D. Selecting Conversion Phosphors for White Light-Emitting Diodes. J. Electrochem. Soc. 158, R37-R54, doi:10.1149/ 1.3568524 (2011).
4. Brovelli, S. et al. Emission Color Trajectory and White Electroluminescence Through Supramolecular Control of Energy Transfer and Exciplex Formation in Binary Blends of Conjugated Polyrotaxanes. Adv. Funct. Mater. 22, 4284-4291, doi:10.1002/adfm.201200786 (2012).
5. Farinola, G. M. & Ragni, R. Electroluminescent materials for white organic light emitting diodes. Chem. Soc. Rev. 40, 3467-3482, doi:10.1039/c0cs00204f (2011).
6. Reineke, S. et al. White organic light-emitting diodes with fluorescent tube efficiency. Nature 459, 234-U116, doi:10.1038/nature08003 (2009).
7. Han, T. H. et al. Extremely efficient flexible organic light-emitting diodes with modified graphene anode. Nature Photon. 6, 105-110, doi:10.1038/ nphoton.2011.318 (2012).
8. Wang, Z. B. et al. Unlocking the full potential of organic light-emitting diodes on flexible plastic. Nature Photon. 5, 753-757, doi:10.1038/nphoton. 2011.259 (2011).
9. Capelli, R. et al. Organic light-emitting transistors with an efficiency that outperforms the equivalent light-emitting diodes. Nature Mater. 9, 496-503, doi:10.1038/nmat2751 (2010).
10. Hide, F., Kozodoy, P., DenBaars, S. P. & Heeger, A. J. White light from InGaN/ conjugated polymer hybrid light-emitting diodes. Appl. Phys. Lett. 70, 2664-2666, doi:10.1063/1.118989 (1997). (Pubitemid 127639897)
11. Narukawa, Y. et al. Phosphor-conversion white light emitting diode using InGaN near-ultraviolet chip. Jpn. J. Appl. Phys. Part 2 - Lett. 41, L371-L373, doi:10.1143/ jjap.41.l371 (2002). (Pubitemid 34751827)
12. Schlotter, P., Schmidt, R. & Schneider, J. Luminescence conversion of blue light emitting diodes. Appl. Phys. A-Mater. Sci. Process. 64, 417-418, doi:10.1007/ s003390050498 (1997).
13. Xiang,H. F., Yu, S. C., Che, C. M.&Lai, P. T. Efficient white and red light emission from GaN/tris-(8-hydroxyquinolato) aluminum/platinum(II) mesotetrakis( pentafluorophenyl) porphyrin hybrid light-emitting diodes. Appl. Phys. Lett. 83, 1518-1520, doi:10.1063/1.1604192 (2003).
14. Ermakov, O. N. et al. Hybrid organic-inorganic light-emitting diodes. Microelectron. Eng. 69, 208-212, doi:10.1016/s0167-9317(03)00298-3 (2003).
15. Belton, C. R. et al. New light from hybrid inorganic-organic emitters. J. Phys. DAppl. Phys. 41, doi:094006/10.1088/0022-3727/41/9/094006 (2008). (Pubitemid 351591059)
16. Zhang, L., Li, B., Lei, B., Hong, Z. & Li, W. A triphenylamine derivative as an efficient organic light color-conversion material for white LEDs. J. Lumines. 128, 67-73, doi:10.1016/j.jlumin.2007.05.009 (2008). (Pubitemid 47374179)
17. Youn-Sik, L., Hyun-Jeong, K., Ji-Young, J., Sang-Hee, L. & Chang-Hee, H. An efficient luminescence conversion LED for white light emission, fabricated using a commercial InGaN LED and a 1,8-naphthalimide derivative. Chem. Phys. Lett. 431, 341-345, doi:10.1016/j.cplett.2006.09.090 (2006). (Pubitemid 44692169)
18. Kinderman, R. et al. I-V performance and stability study of dyes for luminescent plate concentrators. J. Sol. Energy Eng. Trans.-ASME 129, 277-282, doi:10.1115/ 1.2737469 (2007). (Pubitemid 47317757)
19. Senthilkumar, S., Nath, S.&Pal, H. Photophysical Properties of Coumarin-30 Dye in Aprotic and Protic Solvents of Varying Polarities. Photochem. and Photobio. 80, 104-111 (2004).
20. Burckstummer, H., Weissenstein, A., Bialas, D. & Wurthner, F. Synthesis and Characterization of Optical and Redox Properties of Bithiophene-Functionalized Diketopyrrolopyrrole Chromophores. J. Org. Chem. 76, 2426-2432, doi:10.1021/ jo2003117 (2011).
21. Jones, G., Jackson, W. R., Choi, C. & Bergmark, W. R. Solvent effects on emission yield and lifetime for coumarin laser-dyes - Requirements for a rotatory decay mechanism. J. Phys. Chem. 89, 294-300, doi:10.1021/j100248a024 (1985).
22. Lakowicz, J. R. Principle of Fluorescence Spectroscopy (Springer, 2006).
23. Baumberg, I. et al. Effect of polymer matrix on photo-stability of photoluminescent dyes in multi-layer polymeric structures. Polym. Degrad. Stabil. 73, 403-410, doi:10.1016/s0141-3910(01)00119-7 (2001). (Pubitemid 32798133)
24. Monguzzi, A., Riva, F., Tubino, R. & Meinardi, F. White light generation by sensitized photon up-conversion. Chem. Phys. Lett. 521, 17-19, doi:10.1016/ j.cplett.2011.11.037 (2012).
25. McCamy, C. S. Correlated color temperature as an explicit function of chromaticity coordinates. Color Res. Appl. 17, 142-144, doi:10.1002/ col.5080170211 (1992).
26. Heitner, B. J. E. I. Du Pont de Nemours and Co. Process for preparing acrylic polymer sheets using a dual peroxide initiator system. United States Patent US 4,588,798.1986 May 13.
27. de Mello, J. C., Wittmann, H. F. & Friend, R. H. An improved experimental determination of external photoluminescence quantum efficiency. Advanced Materials 9, 230-232 (1997). (Pubitemid 127527606)