Atomic layer deposition of highly transparent platinum counter electrodes for metal/polymer flexible dye-sensitized solar cells

D. Garcia - Alonso, V. Zardetto, A.J.M. Mackus, F. Rossi, De, M.A. Verheijen, T.M. Brown, W.M.M. Kessels, M. Creatore

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

23 Citaten (Scopus)
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Samenvatting

Atomic layer deposition (ALD) is used to deposit Pt nanoparticles at low temperature (25–150 °C) to fabricate highly transparent counter electrodes (CEs) for flexible dye-sensitized solar cells (DSCs). The Pt nanoparticles (NPs) are deposited for different number of ALD cycles on indium tin oxide (ITO)/polyethylene naphthalate (PEN) substrates. Rutherford backscattering spectroscopy (RBS) and transmission electron microscopy (TEM) are used to assess the Pt NP loading, density, and size. There is a trade-off between transparency and catalytic activity of the CE, and the best cell performances of back-side-illuminated DSCs (˜3.7% efficiency) are achieved for Pt ALD at temperatures in the range of 100–150 °C, even though deposition at 25 °C is also viable. The best cell produced with ALD platinized CE (100 cycles at 100 °C) outperforms the reference cells fabricated with electrodeposited and sputtered Pt CEs, with relative improvements in efficiency of 19% and 29%, respectively. In addition, these parameters are used to fabricate a large area CE for a sub-module (active area of 17.6 cm2), resulting in an efficiency of 3.1%, which demonstrates the scalability of the process.
Originele taal-2Engels
Artikelnummer1300831
Pagina's (van-tot)1300831-1/8
Aantal pagina's8
TijdschriftAdvanced Energy Materials
Volume4
Nummer van het tijdschrift4
DOI's
StatusGepubliceerd - 2014

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