Promising rise of optimum efficiency in double junction organic tandem solar cells

Dong Seok Song, Hyeok Kim, Jin Hyuk Bae

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


To achieve high efficiency for organic solar cells, tandem structures have been constructed. In this paper, we suggest a numerical study on the optimization of the thicknesses of organic tandem solar cells (OTSCs) based on common materials with high availability, poly(3-hexylthiophene) (P3HT) and polythieno[3,4-b]-thiophene-co-benzodithiophene (PTB7). Based on the results of optical simulations, the optimized design of an OTSC is made possible in terms of a broad spectral response and high efficiency. To achieve high efficiency and a short circuit current (JSC), we suggest a rational design via thickness optimization of each subcell for OTSC. A combined thickness of 200 nm and 200 nm for each single OPV cell is proposed for OTSC to realize a current matching with 8.00 mA/cm2 of JSC. Accordingly, a maximum power conversion efficiency (PCE) is achieved up to 10.11%.

Original languageEnglish
Pages (from-to)12827-12830
Number of pages4
JournalJournal of Nanoscience and Nanotechnology
Issue number12
StatePublished - 1 Dec 2016


  • High efficiency
  • Optical simulation
  • Optimum design
  • Organic tandem solar cells


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