Publicación

Tipo de publicación: Artículos científicos (Publicados en revistas de divulgación o científicas)

Título del artículo: PERFORMANCE OF POROUS, NANOCOLUMNAR ZNO ELECTRODES OBTAINED AT LOW TEMPERATURE BY PLASMA-ENHANCHED CHEMICAL VAPOR DEPOSITION IN DYE SENSITIZED SOLAR CELLS.

Registrado por: ENERGY AND ENVIROMENT FOCUS

Año de publicación: 2013

Resumen: The photovoltaic performance of dye-sensitized solar cells consisting of mesoporous ZnO nanocolumnar films prepared at low temperatures by plasma enhanced chemical vapor deposition is studied. The results have been compared with those of randomly packed nanoparticulate electrodes prepared by doctor-blading a suspension of two mixed commercial nanopowders and subsequent high temperature annealing. The haracterization of the devices consisted of dye loading and current–voltage curve measurements. The charge collection efficiency was probed by electrochemical impedance spectroscopy (EIS) under illumination, intensity modulated photovoltage spectroscopy (IMVS) and intensity modulated photocurrent spectroscopy (IMPS). It has been found that the nanoparticulate electrodes produce larger photocurrents as a consequence of better dye loading. However,
the combined EIS/IMPS/IMVS study provides self-consistent evidence that transport properties are similar for both kinds of electrodes, approaching a 100% collection efficiency in both cases. The possibility of using ZnO nanostructures obtained by low-temperature processing methods for low-cost DSC is discussed.

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Número de páginas:

Autor(es): ALBERTO G. VEGA-POOT , M. MACIAS MONTERO , A. BARRANCO , A. BORRAS , A. R. GONZALEZ ELIPE , GERKO OSKAM , JUAN ANTONIO ANTA MONTALVO

Campo: Energía

Disciplina: Energías alternativas y renovables

Subdisciplina: Fuentes de energía no convencionales

Número de registro: ISSN: 23263059