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Dithienocyclopentathieno[3,2-b]thiophene Hexacyclic Arene for Solution-Processed Organic Field-Effect Transistors and Photovoltaic Applications.
MedLine Citation:
PMID:  22311677     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
We have developed a ladder-type dithienocyclopentathieno[3,2-b]thiophene (DTCTT) hexacyclic unit in which the central thieno[3,2-b]thiophene ring was covalently fastened to two adjacent thiophene rings through carbon bridges, thereby forming two connected cyclopentadithiophene (CPDT) units in a hexacyclic coplanar structure. This stannylated Sn-DTCTT building block was copolymerized with three electron-deficient acceptors, dibromo-thieno[3,4-c]pyrrole-4,6-dione (TPD), dibromo-benzothiadiazole (BT), and dibromo-phenanthrenequinoxaline (PQX), by Stille polymerization, thereby furnishing a new class of alternating donor-acceptor copolymers: PDTCTTTPD, PDTCTTBT, and PDTCTTPQX, respectively. Field-effect transistors based on PDTCTTPQX and PDTCTTBT yielded high hole mobilities of 0.017 and 0.053 cm(2)  V(-1)  s(-1) , respectively, which are among the highest performances among amorphous donor-acceptor copolymers. A bulk heterojunction solar cell that incorporated PDTCTTTPD with the lower-lying HOMO energy level delivered a higher V(oc) value of 0.72 V and a power conversion efficiency (PCE) value of 2.59 %.
Authors:
Yen-Ju Cheng; Chiu-Hsiang Chen; Tai-Yen Lin; Chain-Shu Hsu
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-2-6
Journal Detail:
Title:  Chemistry, an Asian journal     Volume:  -     ISSN:  1861-471X     ISO Abbreviation:  -     Publication Date:  2012 Feb 
Date Detail:
Created Date:  2012-2-7     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101294643     Medline TA:  Chem Asian J     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Affiliation:
Department of Applied Chemistry, National Chiao Tung University, 1001 Ta Hsueh Road, Hsin-Chu, 30010 (Taiwan). yjcheng@mail.nctu.edu.tw.
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