3 years ago

Theoretical study of tribranched organic sensitizer for Efficient Dye-sensitized solar cells

Young Sik Kim, Geon Hyeong Lee

We investigated the effect of heteroleptic dual electron acceptor as a photosensitizer for the dye-sensitized solar cells (DSSCs). Novel tribranched organic dyes were designed with heteroleptic dual electron acceptors [cyanoacrylic acid (R1), and indolinum carboxyl acid (R2)] on each side of a triazine (TRZ) based organic dye and triphenylamine and the additional phenothiazine as an antenna group for DSSCs. The density functional theory (DFT) and time-dependent density functional theory (TD-DFT) calculations were used to estimate the photovoltaic properties of the dyes. The absorption spectrum of the dyes showed different forms because of the different energy levels of molecular orbital (MO) of each dye and intramolecular energy transfer. Considering overall properties, the asymmetric tribranched organic dye exhibited a high conversion efficiency performance for DSSCs. The findings of this work suggest that optimizing the branch of electron donors and acceptors in dye sensitizers based on asymmetric tribranched organic dye produces good photovoltaic properties for DSSCs.

Publisher URL: http://www.tandfonline.com/doi/full/10.1080/15421406.2017.1354654

DOI: 10.1080/15421406.2017.1354654

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.