3 years ago

Polythiophenylpyrazoline containing fluorene and benzothiadiazole moieties as blue and white light emitting materials

Polythiophenylpyrazoline containing fluorene and benzothiadiazole moieties as blue and white light emitting materials
Low band gap polythiophenylpyrazoline containing fluorene and benzothiadiazole moieties were synthesized and characterized in combination with high donor content (PFPF) and high acceptor content (PBPF). The PBPF displays broad emission as white light dual fluorescence via locally excited state and charge transfer state as single polymer, while PFPF exhibits blue light emission. This dual emission can be utilized to reduce problem with forster energy transfer from high energy to low energy excited state. The polymers are soluble in many organic solvents thus solvatochromism explored in nonpolar to polar solvents. The energy state of polymers were compared with small molecule namely, 1,3-diphenyl-5-(9-phenanthrenyl)-2-pyrazoline (DPPhP) under similar condition. It is observed that LUMO level is brought down and imparts improved electron injection and better transport ability. This approach yield a toolbox of molecules that can be used to construct π-conjugated polymers with a variety of composition lead to explore better organic light emitting diode performance.

Publisher URL: www.sciencedirect.com/science

DOI: S0032386117307152

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.