Title :
What decides the mobility of small molecule-based organic semiconductors in organic thin film transistors ?
Author :
Rani, Varsha ; Yadav, Sarita ; Sharma, Akanksha ; Ghosh, Subhasis
Author_Institution :
Sch. of Phys. Sci., Jawaharlal Nehru Univ., New Delhi, India
Abstract :
The design of organic molecules-based devices with higher charge carrier mobility requires an in-depth understanding of elementary processes relevant to transport of charge carriers in organic thin films. Carrier mobility is large if there is a significant overlap between the molecular orbitals. Here, the exact role of chemical structure and arrangement of molecules in their crystal structure on the performance of metal-free (H2Pc)- and metal phthalocyanines (ZnPc, CuPc and F16CuPc)-based organic thin film transistors (OEFTs) has been observed by a combined experimental and theoretical study.
Keywords :
carrier mobility; crystal structure; organic field effect transistors; organic semiconductors; semiconductor device models; thin film transistors; OFET; charge carrier mobility; charge carriers transport; chemical structure; crystal structure; metal phthalocyanines-based organic thin film transistors; metal-free-based organic thin film transistors; molecular orbitals; molecules arrangement; organic molecules-based devices; Charge carrier mobility; Charge transfer; Chemicals; Metals; OFETs; Organic thin film transistors; DFT; OFETs; Phthalocyanines; charge carrier mobility;
Conference_Titel :
Emerging Electronics (ICEE), 2014 IEEE 2nd International Conference on
Print_ISBN :
978-1-4673-6527-7
DOI :
10.1109/ICEmElec.2014.7151194
