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- Title
An A‐D‐A′‐D‐A Conjugated Molecule Entailing Diazapentalene Unit for an n‐Type Organic Semiconductor.
- Authors
Lin, Gaobo; Wang, Lingna; Yang, Yizhou; Liu, Zitong; Zhang, Guanxin; Zhang, Deqing
- Abstract
Conjugated molecules with low lying LUMO levels are demanding for the development of air stable n‐type organic semiconductors. In this paper, we report a new A‐D‐A′‐D‐A conjugated molecule (DAPDCV) entailing diazapentalene (DAP) and dicyanovinylene groups as electron accepting units. Both theoretical and electrochemical studies manifest that the incorporation of DAP unit in the conjugated molecule can effectively lower the LUMO energy level. Accordingly, thin film of DAPDCV shows n‐type semiconducting behavior with electron mobility up to 0.16 cm2⋅V−1⋅s−1 after thermal annealing under N2 atmosphere. Moreover, thin film of DAPDCV also shows stable n‐type transporting property in air with mobility reaching 0.078 cm2⋅V−1⋅s−1.
- Subjects
ORGANIC semiconductors; N-type semiconductors; ORGANIC field-effect transistors; THIN films; ELECTRON mobility; MOLECULES
- Publication
Chemistry - An Asian Journal, 2019, Vol 14, Issue 10, p1712
- ISSN
1861-4728
- Publication type
Article
- DOI
10.1002/asia.201801691