Home / Science / Sustainable Energy & Fuels – October 2018

Sustainable Energy & Fuels – October 2018

© 2018 EPFL

 

Sustainable Energy & Fuels – October 2018

Design of cyclopentadithiophene-based small organic molecules as hole selective layers for perovskite solar cells.

Thiophene-based p-type molecules are being extensively investigated and employed in optoelectronic
devices due to their intriguing semiconducting properties. Herein, we report the synthesis and
characterization of a 4H-cyclopenta[1,2-b:5,4-b0]dithiophene-based core, having methoxy-substituted
triphenylamine side arms as donor groups.

These rationally designed molecules were obtained through easy cross-coupling reactions, in few synthetic and purification steps. The synthesized molecules coded as CDTh 1 and CDTh-EtHex 2 showed excellent thermal stability, and the fabricated perovskite solar cells using CDTh 1 and CDTh-EtHex 2 as hole transporting materials (HTMs) gave competitive performance compared to the state-of-the-art Spiro-OMeTAD. Photoluminescence of perovskite layers coated with these HTMs show relatively high quenching suggesting the injection of holes from the
valence band of the perovskite into the HOMO of the HTM. The estimated production cost was calculated and found to be a fraction of that of commercially available state-of-the-art Spiro-OMeTAD

source: The Ecole polytechnique fédérale de Lausanne (EPFL)

Telegram Channel

About Mohammad Daeizadeh

  • تمامی فایل ها قبل از قرار گیری در سایت تست شده اند.لطفا در صورت بروز هرگونه مشکل از طریق نظرات مارا مطلع سازید.
  • پسورد تمامی فایل های موجود در سایت www.parsseh.com می باشد.(تمامی حروف را می بایست کوچک وارد کنید)
  • Password = www.parsseh.com
  • لطفا نظرات خود را به صورت فارسی بنویسید در صورت تایپ بصورت فینگلیش نظر شما پاک خواهد شد

Leave a Reply

Your email address will not be published. Required fields are marked *

*

This site uses Akismet to reduce spam. Learn how your comment data is processed.