Artículos de revistas
Incorporation Of Nanocrystals With Different Dimensionalities In Hybrid Tio2/p3ht Solar Cells
Registro en:
Journal Of Photonics For Energy. Spie, v. 5, n. 1, p. - , 2015.
19477988
10.1117/1.JPE.5.057407
2-s2.0-84924151203
Autor
Freitas F.S.
De Souza E Silva J.M.
Cardoso M.B.
Nogueira A.F.
Institución
Resumen
We investigate the effect of TiO2 nanoparticles-nanospheres and nanorods-inserted in the poly(3-hexylthiophene) (P3HT) matrix of TiO2?P3HT inverted hybrid solar cells. X-ray diffraction, high-resolution transmission electron microscopy, small-angle x-ray scattering, photoluminescence, and photoelectrochemical experiments were employed to investigate the structure, morphology, and photoactivity of TiO2 nanoparticles modified with 2-thiopheneacetic acid, mixed or not with P3HT. Both TiO2 nanospheres and TiO2 nanorods presented a good dispersion in the polymer matrix. The incorporation of TiO2 nanospheres and nanorods has improved the photocurrent generation, and devices with efficiency values up to 1.35% were obtained. Our results reveal that the nanoscale morphology enables an enhanced interfacial area for exciton dissociation. In particular, the nanospheres contribute with their high specific area, and the nanorods contribute with their high aspect ratio. 5 1
Lee, C.-K., Pao, C.-W., Chen, C.-W., Correlation of nanoscale organizations of polymer and nanocrystals in polymer/inorganic nanocrystal bulk heterojunction hybrid solar cells: Insights from multiscale molecular simulations (2013) Energy Environ. Sci., 6, pp. 307-315 Huynh, W.U., Dittmer, J.J., Alivisatos, A.P., Hybrid nanorod: Polymer solar cells (2002) Science, 295, pp. 2425-2427 Sian, S., Chen, C.-W., Polymer-metal-oxide hybrid solar cells (2013) J. Mater. Chem. A, 1, pp. 10574-10591 Das, J., A facile nonaqueous route for fabricating titania nanorods and their viability in quasi-solid-state dye-sensitized solar cells (2010) J. Mater. Chem., 20, pp. 4425-4431 Cozzoli, P.D., Kornowski, A., Weller, H., Low-temperature synthesis of soluble and processable organic-capped anatase TiO2 nanorods (2003) J. Am. Chem. Soc., 125, pp. 14539-14548 Zeng, T.W., A large interconnecting network within hybrid MEH-PPV/TiO2 nanorod photovoltaic devices (2006) Nanotechnology, 17, p. 5387 Yang, P., TiO2 nanowire electron transport pathways inside organic photovoltaics (2013) Phys. Chem. Chem. Phys., 15, pp. 4566-4572 Lin, Y., Morphology control in TiO2 nanorod/polythiophene composites for bulk heterojunction solar cells using hydrogen bonding (2012) Macromolecules, 45, pp. 8665-8673 Ranjitha, A., Inverted organic solar cells based on Cd-doped TiO2 as an electron extraction layer (2014) Superlattices Microstruct., 74, pp. 114-122 Bolognesi, M., The effect of selective contact electrodes on the interfacial charge recombination kinetics and device efficiency of organic polymer solar cells (2011) Phys. Chem. Chem. Phys., 13, pp. 6105-6109 Mor, G.K., High efficiency double heterojunction polymer photovoltaic cells using highly ordered TiO2 nanotube arrays (2007) Appl. Phys. Lett., 91, p. 152111 Planells, M., Oligothiophene interlayer effect on photocurrent generation for hybrid TiO2/P3HT solar cells (2014) Appl. Mater. Interfaces, 6, pp. 17226-17235 Freitas, F.S., Tailoring the interface using thiophene small molecules in TiO2/P3HT hybrid solar cells (2012) Phys. Chem. Chem. Phys., 14, pp. 11990-11993 Liu, K., Efficient hybrid plasmonic polymer solar cells with Ag nanoparticle decorated TiO2 nanorods embedded in the active layer (2014) Nanoscale, 6, pp. 6180-6186 Lin, Y.-Y., Interfacial nanostructuring on the performance of polymer/TiO2 nanorod bulk heterojunction solar cells (2009) J. Am. Chem. Soc., 131, pp. 3644-3649 Eom, S.H., Roles of interfacial modifiers in hybrid solar cells: Inorganic/polymer bilayer versus inorganic/polymer: Fullerene bulk heterojunction (2014) Appl. Mater. Interfaces, 6, pp. 803-810 Ravirajan, P., Hybrid polymer/zinc oxide photovoltaic devices with vertically oriented ZnO nanorods and an amphiphilic molecular interface layer (2006) J. Phys. Chem. B, 110, pp. 7635-7639 Abate, A., Protic ionic liquids as p-dopant for organic hole transporting materials and their application in high efficiency hybrid solar cells (2013) J. Am. Chem. Soc., 135, pp. 13538-13548 Beaucage, G., Approximations leading to a unified exponential/power-law approach to small-angle scattering (1995) J. Appl. Cryst., 28, pp. 717-728 Beaucage, G., Small-angle scattering from polymeric mass fractals of arbitrary mass-fractal dimension (1996) J. Appl. Cryst., 29, pp. 134-146 Beaucage, G., Kammler, H.K., Pratsinis, S.E., Particle size distributions from smallangle scattering using global scattering functions (2004) J. Appl. Cryst., 37, pp. 523-535 Khatri, I., Similar device architectures for inverted organic solar cell and laminated solid-state dye-sensitized solar cells (2012) ISRN Electron., 10 Choi, H.C., Jung, Y.M., Kim, S.B., Size effects in the Raman spectra of TiO2 nanoparticles (2005) Vib. Spectrosc., 37, pp. 33-38 Li, G., Polymer self-organization enhances photovoltaic efficiency (2005) J. Appl. Phys., 98, p. 43704 Salim, T., Solvent additives and their effects on blend morphologies of bulk heterojunctions (2011) J. Mater. Chem., 21, pp. 242-250 Hwang, I.W., Carrier generation and transport in bulk heterojunction films processed with 1,8-octanedithiol as a processing additive (2008) J. Appl. Phys., 104, p. 033706 Nguyen, H.Q., Synthesis and characterization of a polyisoprene-b-polystyrene-b-poly (3-hexylthiophene) triblock copolymer (2013) Polym. Chem., 4, pp. 462-465 Prosa, T.J., X-ray structural studies of poly(3-alkylthiophenes): An example of an inverse comb (1992) Macromolecules, 25, p. 4364 De Freitas, J.N., Connecting the (quantum) dots: Towards hybrid photovoltaic devices based on chalcogenide gels (2012) Phys. Chem. Chem. Phys., 14, pp. 15180-15184 Yang, P., Identifying effects of TiO2 nanowires inside bulk heterojunction organic photovoltaics on charge diffusion and recombination (2014) J. Mater. Chem. C, 2, pp. 4922-4927 Grancini, G., Boosting infrared light harvesting by molecular functionalization of metal oxide/polymer interfaces in efficient hybrid solar cells (2012) Adv. Funct. Mater., 22, pp. 2160-2166 Liao, H.-C., Diketopyrrolopyrrole-based oligomer modified TiO2 nanorods for airstable and all solution processed poly(3-hexylthiophene): TiO2 bulk heterojunction inverted solar cell (2012) J. Mater. Chem., 22, pp. 10589-10596