Visualitza FCA_Articles per autoria "ea7e5389-7c99-4593-b48d-96081d8dca79"
Ara mostrant els elements 1-5 d 5
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Elucidating Capacitance and Resistance Terms in Confined Electroactive Molecular Layers
Bueno, Paulo R.; Fabregat-Santiago, Francisco; Davis, Jason J. American Chemical Society (2013)Electrochemical analyses on confined electroactive molecular layers, herein exemplified with electroactive self-assembled monolayers, sample current contributions that are significantly influenced by additional nonfaradaic ... -
Impedance of carrier injection at the metal-organic interface mediated by surface states in electron-only tris(8-hydroxyquinoline) aluminium (Alq<sub>3</sub>) thin layers
Garcia-Belmonte, Germà; Bisquert, Juan; Bueno, Paulo R.; Graeff, C. F. O. Elsevier (2008)Capacitance spectra of thin (<200 nm) Alq<sub>3</sub> electron-only devices have been measured as a function of bias voltage. Capacitance spectra exhibit a flat response at high frequencies (>10<sup>3</sup> Hz) and ... -
Impedance Spectroscopy Analysis of the Effect of TiO2 Blocking Layers on the Efficiency of Dye Sensitized Solar Cells
Góes, Márcio Sousa; Joanni, Ednan; Muniz, Elaine C.; Savu, Raluca; Habeck, Thomas R.; Bueno, Paulo R.; Fabregat-Santiago, Francisco American Chemical Society (2012)The introduction of a dense TiO2 layer between the mesoporous TiO2 network and the charge collector in dye-sensitized solar cell anodes has been claimed to improve the performance of solar cell devices. Two mechanisms have ... -
Kinetics of interface state-limited hole injection in α-naphthylphenylbiphenyl diamine (α-NPD) thin layers
Garcia-Belmonte, Germà; Bisquert, Juan; Bueno, Paulo R.; Graeff, C. F. O.; Castro, F. A. Elsevier (2009)Injection-limited operation is identified in thin-film, α-NPD-based diodes. A detailed model for the impedance of the injection process is provided which considers the kinetics of filling/releasing of interface states as ... -
Surface Passivation of Nanoporous TiO2 via Atomic Layer Deposition of ZrO2 for Solid-State Dye-Sensitized Solar Cell Applications
Li, Tina C.; Góes, Márcio Sousa; Fabregat-Santiago, Francisco; Bisquert, Juan; Bueno, Paulo R.; Prasittichai, Chaiya; Hupp, Joseph T.; Marks, Tobin J. American Chemical Society (2009)We report here the utilization of atomic layer deposition to passivate surface trap states in mesoporous TiO2 nanoparticles for solid-state dye-sensitized solar cells based on 2,2′,7,7′-tetrakis(N,N-di-p-methoxyphenylami ...