Properties of a dye sensitized solar cell using electrodes with au nano powder blocking layers

Jeongho Song, Yunyoung Noh, Minkyoung Choi, Kwangbae Kim, Ohsung Song

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

We prepared working electrodes with blocking layers containing 0.0∼0.5 wt% Au nano powder to improve the energy conversion efficiencies (ECEs) of a dye sensitized solar cell (DSSC). TEM, FE-SEM, and AFM were used to characterize microstructure. XRD and micro-Raman were used to determine the phase and localized surface plasmon resonance (LSPR) effect of the blocking layer with Au nano powder. A solar simulator and a potentiostat were used to confirm the photovoltaic properties of the DSSC with the Au nano powder. From the results of the microstructure analysis, we confirmed that the Au nano powder had particle sizes of less than 70 nm, dispersed uniformly on the blocking layer. Based on the phase and composition analysis, we identified the presence of Au, and the Raman intensity increased as the amount of Au was increased. The photovoltaic results showed that the ECE reached 5.52% with the Au addition, compared to an ECE of 5.00% without the Au addition. This enhancement was due to the increased LSPR of the blocking layer with the Au addition. Our results suggest that we might improve the efficiency of a DSSC by the proper addition of Au nano powder on the blocking layer.

Original languageEnglish
Pages (from-to)519-525
Number of pages7
JournalJournal of Korean Institute of Metals and Materials
Volume54
Issue number7
DOIs
StatePublished - 2016

Keywords

  • Atomic force microscopy
  • Coating
  • Electrical properties
  • Localized surface plasmon resonance
  • Solar cell

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