Journal
CHEMICAL COMMUNICATIONS
Volume 54, Issue 3, Pages 303-306Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7cc08497h
Keywords
-
Categories
Funding
- National Key Basic Research and Development Program of China (973 program) [2014CB643504, 2015CB655001]
- National Natural Science Foundation of China [51373165, 21625403, 51603203]
- Jilin Scientific and Technological Development Program [20170519003JH]
- Strategic Priority Research Program of Chinese Academy of Sciences [XDB12010200]
- State Key Laboratory of Luminescence and Applications
Ask authors/readers for more resources
Organic molecules with wide absorption spectra exhibit great sunlight harvesting capability and are critically important for solar cell applications. In this manuscript, we develop an A-D-A'-D-A type small molecule acceptor (IID-IC) using isoindigo (IID) as the electrondeficient core unit (A'), thiophene as the electron-rich bridging units (D) and 2-(3-oxo-2,3-dihydroinden-1-ylidene) malononitrile (IC) as the electron-deficient endcapping groups (A). IID-IC shows a wide absorption spectrum with the full width at half maximum (FWHM) of 190 nm, which is almost twice that of a typical A-D-A type molecule acceptor. The wide absorption spectrum of IID-IC is possibly due to the partially suppressed intramolecular charge transfer effect with the additional electron-deficient core unit. An organic solar cell (OSC) device based on IID-IC exhibits the power conversion efficiency of 2.82% with broad photoresponse from 320 nm to 780 nm.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available