Stable ⩾8% efficient nanocrystalline dye-sensitized solar cell based on an electrolyte of low volatility

By Peng Wang, C. Klein, R. Humphry‐Baker, S. M. Zakeeruddin, M. Graetzel. 2005

151 citations recorded by the source corpus.

We demonstrate a ⩾8% efficient nanocrystalline dye-sensitized solar cell retaining over 98% of its initial performance after 1000 h of accelerated tests subjected to thermal stress at 80 °C in the dark. Device degradation was also negligible following 1000 h of visible light soaking at 60 °C. This high performance and stable device was realized by using a robust electrolyte of low volatility in conjunction with the amphiphilic ruthenium sensitizer [Ru(4,4′-dicarboxylic acid-2,2′-bipyridine)(4,4′-bis(p-hexyloxystyryl)-2,2′-bipyridine)(NCS)2], coded as K-19, which was grafted together with 1-decylphosphonic acid on the mesoporous titania film acting as photoanode.We demonstrate a ⩾8% efficient nanocrystalline dye-sensitized solar cell retaining over 98% of its initial performance after 1000 h of accelerated tests subjected to thermal stress at 80 °C in the dark. Device degradation was also negligible following 1000 h of visible light soaking at 60 °C. This high performance and stable device was realized by using a robust electrolyte of low volatility in conjunction with the amphiphilic ruthenium sensitizer [Ru(4,4′-dicarboxylic acid-2,2′-bipyridine)(4,4′-bis(p-hexyloxystyryl)-2,2′-bipyridine)(NCS)2], coded as K-19, which was grafted together with 1-decylphosphonic acid on the mesoporous titania film acting as photoanode.

Subfields: Materials Chemistry, Renewable Energy, Sustainability and the Environment

View Paper: https://www.semanticscholar.org/paper/1ce9f92b42283ef1aa8474005d09ad978cccd02b

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Citations in the corpus

Schottky-quantum dot photovoltaics for efficient infrared power conversion (2008, methodology): “reported a drastic enhancement in efficiency by employing a nanoporous ITO contact infiltrated with butylamine-capped PbS nanocrystals [98], analogous to dye-sensitized solar cell designs [99].”
Nanocrystalline dye‐sensitized solar cells having maximum performance (2007, methodology): “Devices fabricated with the K-19 dye show excellent yield and stability, when tested with various electrolytes.(17) This dye will be briefly revisited, in the section on long term stability, when discussing issues related to cell stability.”
Dye-sensitized solar cells: A brief overview (2011, background): “5 sunlight and demonstrate stable performance under light and heat soaking at 80 C (Wang et al., 2005).”