Journal
ADVANCED MATERIALS
Volume 29, Issue 34, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201606025
Keywords
conjugated polymers; organic photovoltaic cells; organic thin-film transistors; Se center dot center dot center dot O conformational locks
Categories
Funding
- NSFC [51303180, 21574135]
- Beijing Natural Science Foundation [2162043]
- One Hundred Talents Program of Chinese Academy of Sciences
- University of Chinese Academy of Sciences
Ask authors/readers for more resources
Noncovalent conformational locks are broadly employed to construct highly planar -conjugated semiconductors exhibiting substantial charge transport characteristics. However, current chalcogen-based conformational lock strategies for organic semiconductors are limited to SX (X = O, N, halide) weak interactions. An easily accessible (minimal synthetic steps) and structurally planar selenophene-based building block, 1,2-diethoxy-1,2-bisselenylvinylene (DESVS), with novel SeO noncovalent conformational locks is designed and synthesized. DESVS unique properties are supported by density functional theory computed electronic structures, single crystal structures, and experimental lattice cohesion metrics. Based on this building block, a new class of stable, structurally planar, and solution-processable conjugated polymers are synthesized and implemented in organic thin-film transistors (TFT) and organic photovoltaic (OPV) cells. DESVS-based polymers exhibit carrier mobilities in air as high as 1.49 cm(2) V-1 s(-1) (p-type) and 0.65 cm(2) V-1 s(-1) (n-type) in TFTs, and power conversion efficiency >5% in OPV cells.
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