Research Website
jianguomei.com
Keywords
Organic electronics, semiconductor, bis-thienoisatin, thienoisoindigo
Presentation Type
Talk
Research Abstract
Organic field effect transistors (OFETs) offer many advantages compared to traditional inorganic transistors, such as flexibility and solution processability. In this study we design and synthesize two thienoisatin-based organic semiconducting small molecules, then investigate their electronic properties in n-type OFETs. To introduce n-type charge transport, electron-withdrawing dicarbonitrile moieties were installed on thienoisoindigo and bis-thienoisatin molecules, which led to a quinoidal conjugation on thienoisoindigo, while maintaining an aromatic conjugation on the bis-thienoisatin. Following the syntheses, the molecules were characterized to determine highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) levels via cyclic voltammetry, as well as any potential radical properties.
Session Track
Biotechnology and Biomedical Engineering
Recommended Citation
Natalie M. Kadlubowski, Xuyi Luo, and Jianguo Mei,
"Thienoisatin Oligomers as N-Type Molecular Semiconductors"
(August 2, 2018).
The Summer Undergraduate Research Fellowship (SURF) Symposium.
Paper 125.
https://docs.lib.purdue.edu/surf/2018/Presentations/125
Included in
Organic Chemistry Commons, Polymer and Organic Materials Commons, Polymer Chemistry Commons, Semiconductor and Optical Materials Commons
Thienoisatin Oligomers as N-Type Molecular Semiconductors
Organic field effect transistors (OFETs) offer many advantages compared to traditional inorganic transistors, such as flexibility and solution processability. In this study we design and synthesize two thienoisatin-based organic semiconducting small molecules, then investigate their electronic properties in n-type OFETs. To introduce n-type charge transport, electron-withdrawing dicarbonitrile moieties were installed on thienoisoindigo and bis-thienoisatin molecules, which led to a quinoidal conjugation on thienoisoindigo, while maintaining an aromatic conjugation on the bis-thienoisatin. Following the syntheses, the molecules were characterized to determine highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) levels via cyclic voltammetry, as well as any potential radical properties.
https://docs.lib.purdue.edu/surf/2018/Presentations/125