A computational study on optimal design for organic tandem solar cells

Young Min Nam, June Huh, Won Ho Jo

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)

Abstract

A new model is developed by combining the optical model and the drift-diffusion model to optimize the thicknesses of active layers of individual sub-cells for high performance of organic tandem solar cell. When the photovoltaic properties of tandem organic solar cells based on poly(2,6-(4,4-bis-(2-ethylhexyl)-4H-cyclopenta (2,1b;3,4b′) dithiophene)-alt-4,7-(2,1,3-benzo-thiadiazole))/(6,6)-phenyl C71-butyric acid methyl ester and poly(3-hexylthiophene)/(6,6)-phenyl C61-butyric acid methyl ester are calculated as functions of thicknesses of individual sub-cells using the new model, it is found that the optimum thickness pair of active layers is 150 and 120 nm for the front and back sub-cell, respectively. Comparison of simulation with experiment reveals that the simulated results are very consistent with experimental ones.

Original languageEnglish
Pages (from-to)1095-1101
Number of pages7
JournalSolar Energy Materials and Solar Cells
Volume95
Issue number4
DOIs
Publication statusPublished - 2011 Apr
Externally publishedYes

Keywords

  • Bulk-heterojunction
  • Drift-diffusion model
  • Organic tandem solar cell
  • P3HT:PCBM
  • PCPDTBT:PCBM
  • Transfer matrix formalism

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films

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