Efficiency enhancement in dye-sensitized solar cells by three-dimensional photonic crystals

Dae Kue Hwang, Byunghong Lee, Dae Hwan Kim, Robert P. H. Chang

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We have proposed a new dye-sensitized solar cell (DSSC) structure that employs three-dimensional (3D) photonic crystals (PCs) to enhance the light absorption and improve the power conversion efficiency (PCE) by using coherent scattering phenomena. All the DSSC structures with the 3D PC layer exhibited higher short-circuit current densities and higher PCE (10.8%) than those of traditional DSSCs (9.5%) because light that passed through the photoanode was diffracted, thereby making it possible to reuse it. The PCE is improved without affecting the delicate kinetic balance between the charge separation and recombination that is required to improve light-harvesting efficiency (LHE).

Original languageEnglish
Article number122301
JournalApplied Physics Express
Volume5
Issue number12
DOIs
Publication statusPublished - Dec 2012

Fingerprint

Photonic crystals
Conversion efficiency
solar cells
dyes
photonics
augmentation
Coherent scattering
crystals
Short circuit currents
Light absorption
coherent scattering
reuse
Current density
polarization (charge separation)
short circuit currents
electromagnetic absorption
Kinetics
current density
Dye-sensitized solar cells
kinetics

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Efficiency enhancement in dye-sensitized solar cells by three-dimensional photonic crystals. / Hwang, Dae Kue; Lee, Byunghong; Kim, Dae Hwan; Chang, Robert P. H.

In: Applied Physics Express, Vol. 5, No. 12, 122301, 12.2012.

Research output: Contribution to journalArticle

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