Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance work on Wednesday 21st October 2020 from 07:00 AM to 07:00 PM (BST).

During this time our website performance may be temporarily affected. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 19, 2013
Previous Article Next Article

Heterogeneous junction engineering on core–shell nanocatalysts boosts the dye-sensitized solar cell

Author affiliations

Abstract

In this study, we successfully manipulate the heterogeneous junction at Co3O4–Pt core–shell cathodic nanocatalysts (C/P CNCs) by controlling the core/shell ratios. Our results indicate the cobalt core atoms would inject their valence charge to the surface Pt atoms due to the presence of extensive lattice strain in the shell region. This charge injection accelerates the redox kinetics at the catalysts surface. Consequently, compared with that using Pt nanoparticle cathode, the C/P CNCs at an optimal Pt/Co atomic ratio of 1, improves the current density and the photovoltaic efficiency of dye-sensitized soar cell (DSSC) by ∼36.3% and ∼22.9%, respectively. By combining structure and electrochemical analysis, we systematically elucidate the effects of Pt/Co (shell/core) ratios, the interplay of Co atoms on the shell structures, and the redox activity of C/P CNCs on the DSSC performance. Hereby, this study provide mechanistic insights in developing electrocatalysts for DSSC with programmable performance and reduced Pt utilization.

Graphical abstract: Heterogeneous junction engineering on core–shell nanocatalysts boosts the dye-sensitized solar cell

Back to tab navigation

Supplementary files

Article information


Submitted
27 Apr 2013
Accepted
17 Jul 2013
First published
19 Jul 2013

Nanoscale, 2013,5, 9181-9192
Article type
Paper

Heterogeneous junction engineering on core–shell nanocatalysts boosts the dye-sensitized solar cell

C. Wu, Y. Liu, P. Huang, T. Mark Luo, C. Lee, Y. Yang, T. Wen, T. Chen and T. Lin, Nanoscale, 2013, 5, 9181
DOI: 10.1039/C3NR02107F

Social activity

Search articles by author

Spotlight

Advertisements