Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 121, Issue 42, Pages 23300-23306Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpcc.7b07364
Keywords
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Funding
- National Natural Science Foundation of China [21790050, 21790051, 21771187, 51673103, 51373082]
- Hundred Talents Program and Frontier Science Research Project of the Chinese Academy of Sciences [QYZDB-SSW-JSC052]
- Natural Science Foundation of Shandong Province (China) for Distinguished Young Scholars [JQ201610]
- Taishan Scholars Program of Shandong Province, China [ts20120528]
- Key Research and Development Plan of Shandong Province, China [2016GGX102011]
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The novel two-dimensional graphitic material, graphdiyne (GDY), has attracted great interest due to its superior stability and natural semiconductor characteristic. We realize the obvious improvement of carrier transport characteristics of P-o-FBDTP C8DTBTff (PFC; o-FBDTP, o-fluoro-p-alkoxyphenyl-substituted benzo[1,2-b:4,5-b']dithiophene; C8DTBTff, 5,6-difluoro-4,7di(4-(2-ethylhexyl)-2-thienyl)-2,1,3-benzothiadiazole) organic polymer semiconductor via adding GDY. The result of the field effect transistor measurement suggests that doping GDY can dramatically improve the on/off ratio and threshold voltage of the organic semiconductor. Especially the mobility of GDY/PFC film is 2 orders of magnitude higher than that of pristine PFC, demonstrating the important role of GDY dopant. Besides, the carrier diffusion length of GDY/PFC film is also enhanced, suggesting the great potential applications of GDY-modified polymer with donor acceptor units in organic photoelectric devices.
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