Journal
FRONTIERS IN CHEMISTRY
Volume 7, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fchem.2019.00011
Keywords
organic semiconductors; anthracene derivatives; thermal stability; organic field-effect transistors; mobility
Categories
Funding
- Ministry of Science and Technology of China [2017YFA0204704, 2016YFB0401100, 2017YFA0207500]
- National Natural Science Foundation of China [21805284, 21873108, 51673114, 91233205, 51503037]
- Shanghai Science and Technology Committee [17ZR1447300]
- Chinese Academy of Sciences [Hundred Talents Plan, Youth Innovation Promotion Association] [XDB30000000, XDB12030300]
- Chinese Academy of Sciences [Strategic Priority Research Program of Sciences] [XDB30000000, XDB12030300]
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A novel p-type organic semiconductor with high thermal stability is developed by simply incorporating cyclohexyl substituted aryl groups into the 2,6-position of anthracene, namely 2,6-di(4-cyclohexylphenyl)anthracene (DcHPA), and a similar compound with linear alkyl chain, 2,6-di(4-n-hexylphenyl)anthracene (DnHPA), is also studied for comparison. DcHPA shows sublimation temperature around 360 degrees C, and thin film field-effect transistors of DcHPA could maintain half of the original mobility value when heated up to 150 degrees C. Corresponding DnHPA has sublimation temperature of 310 degrees C and the performance of its thin film devices decreases by about 50% when heated to 80 degrees C. The impressing thermal stability of the cyclohexyl substitution compounds might provide guidelines for developing organic electronic materials with high thermal stability.
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