Document Detail


Indolo[3,2-b]carbazole-based thin-film transistors with high mobility and stability.
MedLine Citation:
PMID:  15643885     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
Proper functionalization of indolo[3,2-b]carbazole led to a new class of high-performance organic semiconductors suitable for organic thin-film transistor (OTFT) applications. While 5,11-diaryl-substituted indolo[3,2-b]carbazoles without long alkyl side chains provided amorphous thin films upon vacuum deposition, those with sufficiently long alkyl side chains such as 5,11-bis(4-octylphenyl)indolo[3,2-b]carbazole self-organized readily into highly crystalline layered structures under similar conditions. OTFTs using channel semiconductors of this nature exhibited excellent field-effect properties, with mobility up to 0.12 cm(2) V(-1) s(-1) and current on/off ratio to 10(7). As this class of organic semiconductors has relatively low HOMO levels and large band gaps, they also displayed good environmental stability even with prolonged exposure to amber light, an appealing characteristic for OTFT applications.
Authors:
Yiliang Wu; Yuning Li; Sandra Gardner; Beng S Ong
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of the American Chemical Society     Volume:  127     ISSN:  0002-7863     ISO Abbreviation:  J. Am. Chem. Soc.     Publication Date:  2005 Jan 
Date Detail:
Created Date:  2005-01-12     Completed Date:  2005-03-03     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7503056     Medline TA:  J Am Chem Soc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  614-8     Citation Subset:  -    
Affiliation:
Materials Design and Integration Laboratory, Xerox Research Centre of Canada, Mississauga, Ontario, Canada L5K 2L1.
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