Photocurrent enhancement by surface plasmon resonance of silver nanoparticles in highly porous dye-sensitized solar cells

Nak Cheon Jeong, Chaiya Prasittichai, Joseph T Hupp

Research output: Contribution to journalArticle

128 Citations (Scopus)

Abstract

Localized surface plasmon resonance (LSPR) by silver nanoparticles that are photochemically incorporated into an electrode-supported TiO 2 nanoparticulate framework enhances the extinction of a subsequently adsorbed dye (the ruthenium-containing molecule, N719). The enhancement arises from both an increase in the dye's effective absorption cross section and a modest increase in the framework surface area. Deployment of the silver-modified assembly as a photoanode in dye-sensitized solar cells leads to light-to-electrical energy conversion with an overall efficiency of 8.9%. This represents a 25% improvement over the performance of otherwise identical solar cells lacking corrosion-protected silver nanoparticles. As one would expect based on increased dye loading and electromagnetic field enhanced (LSPR-enhanced) absorption, the improvement is manifested chiefly as an increase in photocurrent density ascribable to improved light harvesting.

Original languageEnglish
Pages (from-to)14609-14614
Number of pages6
JournalLangmuir
Volume27
Issue number23
DOIs
Publication statusPublished - Dec 6 2011

Fingerprint

Surface plasmon resonance
Photocurrents
Silver
surface plasmon resonance
photocurrents
Coloring Agents
Dyes
solar cells
dyes
silver
Nanoparticles
nanoparticles
augmentation
Ruthenium
Energy conversion
Electromagnetic fields
Solar cells
energy conversion
electric power
absorption cross sections

ASJC Scopus subject areas

  • Electrochemistry
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Materials Science(all)
  • Spectroscopy

Cite this

Photocurrent enhancement by surface plasmon resonance of silver nanoparticles in highly porous dye-sensitized solar cells. / Jeong, Nak Cheon; Prasittichai, Chaiya; Hupp, Joseph T.

In: Langmuir, Vol. 27, No. 23, 06.12.2011, p. 14609-14614.

Research output: Contribution to journalArticle

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