Click on photo for Research at MAMES video

 

 

Current research lines: 

• Enhancement of photocatalytic action of large band-gap semiconductors materials (i.e, TiO₂) by high intense UV-blue up-conversion photonics

 

• White ligth generation and colour tuneability by rare-earth doped upconversion luminescent materials (glasses, nano-glass-ceramics, etc)

 

Former research lines: 

• Down and up-conversion processes in RE-doped nano-glass-ceramics for enhancement of silicon solar cells efficiency for photovoltaic applications

 

 

 

 

Selected TOP publications of Group´s Coordinator,

Dr. Jorge Méndez-Ramos

 

1. J. Méndez-Ramos; J.C. Ruiz-Morales; P. Acosta-Mora; N.M. Khaidukov. "Infrared-light induced curing of photosensitive resins through photon up-conversion for novel cost-effective luminescent 3D-printing technology", Journal of Materials Chemistry C. 4, pp. 801. RSC, 2016. DOI: 10.1039/C5TC03315B 

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   Lothar Wondraczek; Esa Tyystjärvi; Jorge Méndez-Ramos; Frank A. Müller; Qinyuan Zhang. "Shifting the Sun: "Shifting the Sun: Solar spectral conversion and extrinsic sensitization in natural and artificial photosynthesis", Advanced Science. 2-12, pp. 1500218. Wiley, 2015. DOI: 10.1002/advs.201500218 
   

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3. J. Méndez-Ramos, P. Acosta-Mora, J. C. Ruiz-Morales, T. Hernández, M. E. Borges, P. Esparza, "Turning into the blue: materials for enhancing TiO2 photocatalysis by up-conversion photonics", RSC Advances,2013,3,23028, DOI:10.1039/C3RA44342F
   

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4. J. Méndez-Ramos, J.C. Ruiz-Morales, P. Acosta-Mora, J. del-Castillo, A.C. Yanes, “Rare-earth doped nano-glass-ceramics for extending spectral response of water-splitting semiconductor electrodes by high intense UV-blue up-conversion: turning the sun into blue” , Journal of Power Sources, 238, 313 (2013), DOI: 10.1016/j.jpowsour.2013.03.068
   

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5. J. Méndez-Ramos, P. Acosta-Mora, J.C. Ruiz-Morales, N.M. Khaidukov, "Role of the Yb³⁺ concentration in the high efficient UV-blue up-conversion emission from hydrothermally grown Yb³⁺/ Er³⁺-doped K₂YF₅ crystals" , J. Alloys and Compounds, 575, p. 263, (2013), DOI: 10.1016/j.jallcom.2013.04.014 

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6. J. Méndez-Ramos, P. Acosta-Mora, J.C. Ruiz-Morales, T. Hernández, M.E. Borges, P. Esparza, "Heavy Rare-Earth-doped ZBLAN glasses for UV-blue up-conversion and white light generation", J. Luminiscence, 143, p. 479, (2013), DOI: dx.doi.org/10.1016/j.jlumin.2013.05.024

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7. A.C. Yanes, A. Santanta-Alonso, J. Méndez-Ramos, J. del-Castillo, "Structure and intense UV up-conversion emissions in RE³⁺-doped sol-gel glass-ceramics containing KYF₄ nanocrystals", accepted for publication, in press, Appl. Phys. B, DOI: 10.1007/s00340-013-5514-2 

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8. J. Méndez Ramos; A.C. Yanes; A. Santana-Alonso; J. del-Castillo, “Highly efficient up-conversion and bright white light in RE co-doped KYF₄ nanocrystals in sol-gel silica matrix”. Chemical Physics Letters, 555, 196 (2013). 

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9. A. Santana-Alonso; A.C. Yanes; J. Méndez-Ramos; J. del-Castillo, “Up-conversion tuneability in sol-gel derived SiO₂-KYF₄ nano-glass-ceramics doped with Yb³⁺-Ho³⁺-Tm³⁺”, accepted for publication, in press, Science of Advanced Materials (2013), DOI: 10.1166/sam.2013.1493

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10. A.S.Kuznetsov, J.J.Velázquez, V.K. Tikhomirov, J. Méndez-Ramos, V.V. Moshchalkov, “Quantum yield of luminescence of Ag nanoclusters dispersed within transparent bulk glass vs. glass composition and temperature”, Applied Physics Letters, 101, 251106 (2012). 

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11. V.K. Tikhomirov; V.D. Rodríguez; J. Méndez-Ramos; J. del-Castillo; D. Kirilenko; G. Van Tendeloo; V.V. Moshchalkov, “Optimizing Er/Yb ratio and content in Er-Yb co-doped glass-ceramics for enhancement of the up and down-conversion luminescence”, Solar Energy Materials and Solar Cells,100, 209 (2012). Citations (excluding self-citations): 3 

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12. A.C. Yanes; A. Santana-Alonso; J. Méndez-Ramos; J. del-Castillo; V.D. Rodríguez. “Novel Sol-Gel Nano-Glass-Ceramics Comprising Ln³⁺-Doped YF₃ Nanocrystals: Structure and High Efficient UV Up-Conversion”, Advanced Functional Materials, 21, 3136 (2011). Citations(excluding self-citations): 4 

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13. V.K. Tikhomirov, J. Méndez-Ramos, V.D. Rodríguez, D. Furniss. “Infrared tuneable up-conversion phosphor based on Er³⁺-doped nano-glass-ceramics”, Journal of Alloys and Compounds 440, 328 (2007). Citations (excluding self-citations): 21 

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14. A.C. Yanes, V.D. Rodríguez, J. Del Castillo, J. Méndez-Ramos, M. Torres, J. Peraza, “Nanocrystal-size selective spectroscopy in SnO₂:Eu³⁺ semiconductor quantum-dots”, Applied Physics Letters, 85, 2343 (2004). Citations (excluding self-citations): 58 

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15. M. Abril, J. Méndez-Ramos, I.R. Martín, U.R. Rodríguez-Mendoza, V. Lavín, A. Delgado-Torres, V.D. Rodríguez, P. Núñez, A.D. Lozano-Gorrín, "Optical properties of Nd3+ ions in oxyfluoride glasses and glass ceramics comparing different preparation methods”, Journal of Applied Physics, 95, 5271(2004). Citations (excluding self-citations): 59 

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16. J. Méndez-Ramos, V. Lavín, I.R. Martín, U.R. Rodríguez-Mendoza, J.A. González-Almeida, V.D. Rodríguez, A.D. Lozano-Gorrín, P. Núñez, “Optical properties of Er³⁺ ions in transparent glass ceramics", Journal of Alloys and Compounds, 323, 753 (2001). Citations (excluding self-citations): 51 

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Patents: 

1. Title: System for the enhancement of hydrogen production through water photolysis increasing the spectral response of a catalytic semiconductor. Patent nº: P201200883 (7^th September 2012)

2. Title: Material for efficient simultaneous UV and IR to visible conversion. Patent nº: P201001172. (4^th September 2010)

3. Title: Colour tuneability and white light generation in triply lanthanide doped nano-glass-ceramic (25^th May, 2007). Patent nº: P200701609 Publication nº: ES2319044 (Date of publication 16/02/10) 

 

Congress:

53 contributions to peer-reviewed International established Conferences mainly as posters and also with several oral presentations. Some of selected conferences are: International Conference on f-elements (ICFE’4-8 series, 2000-2012), Trends in Nanotechnology, TNT Series 2005-2011; International Conference on Luminescence and Optical Spectroscopy of Condensed Matter, ICL series 2008-2011;  International Conference on Dynamical Processes in Excited States of Solids, DPC series 2001-2007 and European Materials Research Society Spring Meeting EMRS Series 2005-2007 among others. (more details, see Extended CV)

 

 

• Ciamician, G., Science 36 (1912) 385.
• Ruiz-Morales, J.C., Canales-Vázquez, J, Savaniu, C, Marrero-López D, Zhou W, and Irvine J. T.S., Nature 439 (2006) 568.
• Kanan, M.W., Nocera, D.G., Science, 321 (2008) 1072; Nocera, D.G., Accounts of Chemical Research, 45 (2012) 767.
• Fujishima, A., Honda, K., Nature, 238 (1972) 37.
• Luo, J., Ma, L., He, T., Ng, C.F., Wang, S., Sun, H. and Fan, H.J., J. Phys. Chem C, 116, (2012) 11956.
• Liu, G., Yin, L.C., Wang, J., Niu, P., Zhen, C., Xie, Y. and Cheng, H.M., Energy & Environmental Science, 5 (2012) 9603.
• Xu, X., Randorn, C., Efstathiou, P. and Irvine, J.T.S, Nature Materials, 11 (2012) 595.
• Khnayzer, R.S., Blumhoff, J., Harrington, J.A., Haefele, A., Deng, F., Castellano, F.N., Chem. Comm., 48 (2012) 209.
• Li, C., Wang, F., Zhu, J., Yu, J.C., Applied Catalysis B: Environmental, 100 (2010) 433.
• Wang, J., Zhang, G., Zhang, Z., Zhang X., Zhao, G., Wen, F., Pan, Z., Li, Y., Zhang, P., Kang, P., Water Research, 40 (2006) 2143.
• Feng, G., Liu S., Xiu, Z., Zhang, Y., Yu, J., Chen, Y., Wang, P., Yu, X., J. Phys. Chem. C, 112 (2008) 13692.
• Obregón, S., Colón, G., Chem. Commun., 48 (2012) 7865.
• Zhang, Z., Wang, W.,, Yin, W., Shang, M., Wang, L., Sun, S., Applied Catalysis B: Environmental, 101 (2010) 68.
• Zhang, M., Lin, Y., Mullen, T.J., Lin, W., Sun, L.D., Yan, C.H., Pattern, T.E., Wang, D., and Liu, G., J. Phys. Chem. Lett., 3 (2012) 3188.
• Richards, B., Sol. Energy Mater. Sol. Cells, 90 (2006) 2329.
• Rodríguez, V.D., Tikhomirov, V.K., Méndez-Ramos, J., Yanes, A.C., Moshchalkov, V.V., Sol. Energy Mater. Sol. Cells, 94 (2010) 1612.
• Wang, Y. and Ohwaki, J., Appl. Phys. Lett., 63 (1993) 3268.
• Méndez-Ramos, J., Lavín, V., Martín, I.R., Rodríguez-Mendoza, U.R., González-Almeida, J.A., Rodríguez ,V.D., Lozano-Gorrín, A.D. and Núñez, P., J. Alloys and Compounds 323-324 (2001) 753.
• Kamat, P.V., J. Phys. Chem. Lett. 3 (2012) 663.
• Yanes, A.C., Santana-Alonso, A., Méndez-Ramos, J., del-Castillo, J., Rodríguez, V.D., Advanced Functional Materials 21 (2011) 3136.
• Méndez Ramos, J., Yanes, A.C., Santana-Alonso, A., del-Castillo, J., Chemical Physics Letters, 555 (2013) 196.
• Lian, S., Rong, C., Yin, D. and Liu, S., J. Phys. Chem C, 113 (2009) 6928.