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Issue 9, 2016
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Synergistic carbon nanotube aerogel – Pt nanocomposites toward enhanced energy conversion in dye-sensitized solar cells

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Abstract

With the lab-made carbon nanotube aerogel (CNA) serving as the counter electrode (CE), dye-sensitized solar cells (DSSCs) operated under solar simulator illumination (100 mW cm−2, AM 1.5 G) demonstrated an overall power conversion efficiency (η) of 8.35%, higher than the η of 5.95 and 7.39% of DSSCs with a multi-walled carbon nanotube (MWCNT) CE and conventional Pt CE, respectively. With only 3.75 wt% Pt nanoparticles to form an aerogel carbon nanotube composite (CNA-3.75 wt% Pt) CE, the corresponding η was further increased to 9.04%. The enhanced performance by introducing Pt nanoparticles is mainly attributed to the improved electrocatalytic activity, reduced charge-transfer resistance (Rct) at the CE/electrolyte interface, and increased diffusion for the redox couple in the electrolyte. This work provides substantial support for developing low-cost Pt-loaded nanocomposite CEs to further enhance the DSSC performance.

Graphical abstract: Synergistic carbon nanotube aerogel – Pt nanocomposites toward enhanced energy conversion in dye-sensitized solar cells

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Publication details

The article was received on 13 Dec 2015, accepted on 29 Jan 2016 and first published on 02 Feb 2016


Article type: Communication
DOI: 10.1039/C5TA10185A
Citation: J. Mater. Chem. A, 2016,4, 3238-3244
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    Synergistic carbon nanotube aerogel – Pt nanocomposites toward enhanced energy conversion in dye-sensitized solar cells

    H. Chen, T. Liu, J. Ren, H. He, Y. Cao, N. Wang and Z. Guo, J. Mater. Chem. A, 2016, 4, 3238
    DOI: 10.1039/C5TA10185A

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