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Abstract:

The efficiency of energy transfer in hybrid organic/inorganic nanocomposites based on conjugated polymers and semiconductor nanocrystals is strongly dependent on both the energy transfer rate and the rate of the nonradiative recombination of the polymer. We demonstrate that the polymer nonradiative recombination can be reduced by the suppression of exciton diffusion via proper morphology engineering of a hybrid structure. In the layer-by-layer assembled nanocomposite of a conjugated polymer and CdTe nanocrystals the latter have a dual role: first, they are efficient exciton acceptors and, second, they reduce nonradiative recombination in the polymer by suppressing exciton diffusion across the layers. © 2010 American Institute of Physics.

Registro:

Documento: Artículo
Título:Efficient energy transfer in layered hybrid organic/inorganic nanocomposites: A dual function of semiconductor nanocrystals
Autor:Lutich, A.A.; Pöschl, A.; Jiang, G.; Stefani, F.D.; Susha, A.S.; Rogach, A.L.; Feldmann, J.
Filiación:Department of Physics, Photonics and Optoelectronics Group, Ludwig-Maximilians-Universität München, Amalienstrasse 54, 80799 Munich, Germany
Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina
Palabras clave:CdTe nanocrystals; Dual function; Dual role; Efficiency of energy transfer; Efficient energy transfer; Energy-transfer rate; Exciton diffusion; Hybrid structure; Layer-by-layers; Non-radiative recombinations; Organic/inorganic nano-composite; Semiconductor nanocrystals; Cadmium compounds; Energy transfer; Excitons; Nanocomposites; Nanocrystals; Conjugated polymers
Año:2010
Volumen:96
Número:8
DOI: http://dx.doi.org/10.1063/1.3319838
Título revista:Applied Physics Letters
Título revista abreviado:Appl Phys Lett
ISSN:00036951
CODEN:APPLA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00036951_v96_n8_p_Lutich

Referencias:

  • Colvin, V.L., Schlamp, M.C., Alivisatos, A.P., Light-emitting diodes made from cadmium selenide nanocrystals and a semiconducting polymer (1994) Nature, 370 (6488), pp. 354-357. , DOI 10.1038/370354a0
  • Huynh, W.U., Dittmer, J.J., Alivisatos, A.P., Hybrid nanorod-polymer solar cells (2002) Science, 295 (5564), pp. 2425-2427. , DOI 10.1126/science.1069156
  • Rogach, A.L., (2008) Semiconductor Nanocrystal Quantum Dots, , (Springer, New York). 10.1007/978-3-211-75237-1
  • Leatherdale, C.A., Kagan, C.R., Morgan, N.Y., Empedocles, S.A., Kastner, M.A., Bawendi, M.G., (2000) Phys. Rev. B, 62, p. 2669. , PRBMDO 0163-1829. 10.1103/PhysRevB.62.2669
  • Coe, S., Woo, W.-K., Bawendi, M., Bulovic, V., Electroluminescence from single monolayers of nanocrystals in molecular organic devices (2002) Nature, 420 (6917), pp. 800-803. , DOI 10.1038/nature01217
  • Kaufmann, S., Stoferle, T., Moll, N., Mahrt, R.F., Scherf, U., Tsami, A., Talapin, D.V., Murray, C.B., Resonant energy transfer within a colloidal nanocrystal polymer host system (2007) Applied Physics Letters, 90 (7), p. 071108. , DOI 10.1063/1.2645592
  • Chang, T., Musikhin, S., Bakueva, L., Levina, L., Hines, M.A., Cyr, P.W., Sargent, E.H., (2004) Appl. Phys. Lett., 84, p. 4295. , APPLAB 0003-6951. 10.1063/1.1755414
  • Anni, M., Manna, L., Cingolani, R., Valerini, D., Creti, A., Lomascolo, M., (2004) Appl. Phys. Lett., 85, p. 4169. , APPLAB 0003-6951. 10.1063/1.1814795
  • Jiang, G., Susha, A.S., Lutich, A.A., Stefani, F.D., Feldmann, J., Rogach, A.L., (2009) ACS Nano, 3, p. 4127. , ANCAC3 1936-0851. 10.1021/nn901324y
  • Stöferle, T., Scherf, U., Mahrt, R., (2009) Nano Lett., 9, p. 453. , NALEFD 1530-6984. 10.1021/nl8034465
  • Lutich, A.A., Jiang, G., Susha, A.S., Rogach, A.L., Stefani, F.D., Feldmann, J., (2009) Nano Lett., 9, p. 2636. , NALEFD 1530-6984. 10.1021/nl900978a
  • Gao, M.Y., Lesser, C., Kirstein, S., Möhwald, H., Rogach, A.L., Weller, H., (2000) J. Appl. Phys., 87, p. 2297. , JAPIAU 0021-8979. 10.1063/1.372177
  • Valeur, B., (2002) Molecular Fluorescence: Principles and Applications, , Wiley, New York
  • List, E.J.W., Creely, C., Leising, G., Schulte, N., Schlüter, A.D., Scherf, U., Müllen, K., Graupner, W., (2000) Chem. Phys. Lett., 325, p. 132. , CHPLBC 0009-2614. 10.1016/S0009-2614(00)00635-7
  • Lyons, B.P., Monkman, A.P., The role of exciton diffusion in energy transfer between polyfluorene and tetraphenyl porphyrin (2005) Physical Review B - Condensed Matter and Materials Physics, 71 (23), pp. 1-5. , http://oai.aps.org/oai/?verb=ListRecords&metadataPrefix= oai_apsmeta_2&set=journal:PRB:71, DOI 10.1103/PhysRevB.71.235201, 235201
  • Skolnick, M.S., Whittaker, D.M., Fisher, T.A., Simmonds, P.E., (1994) Phys. Rev. Lett., 73, p. 774. , PRLTAO 0031-9007. 10.1103/PhysRevLett.73.774

Citas:

---------- APA ----------
Lutich, A.A., Pöschl, A., Jiang, G., Stefani, F.D., Susha, A.S., Rogach, A.L. & Feldmann, J. (2010) . Efficient energy transfer in layered hybrid organic/inorganic nanocomposites: A dual function of semiconductor nanocrystals. Applied Physics Letters, 96(8).
http://dx.doi.org/10.1063/1.3319838
---------- CHICAGO ----------
Lutich, A.A., Pöschl, A., Jiang, G., Stefani, F.D., Susha, A.S., Rogach, A.L., et al. "Efficient energy transfer in layered hybrid organic/inorganic nanocomposites: A dual function of semiconductor nanocrystals" . Applied Physics Letters 96, no. 8 (2010).
http://dx.doi.org/10.1063/1.3319838
---------- MLA ----------
Lutich, A.A., Pöschl, A., Jiang, G., Stefani, F.D., Susha, A.S., Rogach, A.L., et al. "Efficient energy transfer in layered hybrid organic/inorganic nanocomposites: A dual function of semiconductor nanocrystals" . Applied Physics Letters, vol. 96, no. 8, 2010.
http://dx.doi.org/10.1063/1.3319838
---------- VANCOUVER ----------
Lutich, A.A., Pöschl, A., Jiang, G., Stefani, F.D., Susha, A.S., Rogach, A.L., et al. Efficient energy transfer in layered hybrid organic/inorganic nanocomposites: A dual function of semiconductor nanocrystals. Appl Phys Lett. 2010;96(8).
http://dx.doi.org/10.1063/1.3319838