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Improvement in carrier mobility and photovoltaic performance through random distribution of segments of linear and branched side chains

SYSNO ASEP	0349040
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Improvement in carrier mobility and photovoltaic performance through random distribution of segments of linear and branched side chains
Author(s)	Egbe, D. A. M. (AT) Adam, G. (DE) Pivrikas, A. (AT) Ramil, A. M. (ES) Birckner, E. (DE) Cimrová, Věra (UMCH-V)_{RID, ORCID} Hoppe, H. (DE) Sariciftci, N. S. (AT)
Source Title	Journal of Materials Chemistry. - : ROYAL SOC CHEMISTRY - ISSN 0959-9428 Roč. 20, č. 43 (2010), s. 9726-9734
Number of pages	9 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	poly(p-phenylene-ethynylene)-alt-poly(p-phenylene-vinylene) ; solar cells ; charge carrier mobility
Subject RIV	BM - Solid Matter Physics ; Magnetism
R&D Projects	1M06031 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
CEZ	AV0Z40500505 - UMCH-V (2005-2011)
UT WOS	000283603000021
DOI	10.1039/c0jm01482f
Annotation	The random distribution of segments of linear octyloxy side chains and of branched 2-ethylhexyloxy side chains, on the backbone of anthracene containing poly(p-phenylene-ethynylene)-alt-poly(p-phenylene-vinylene) (PPE-PPV) has resulted in a side chain based statistical copolymer, denoted AnE-PVstat, showing optimized features as compared to the well defined homologues whose constitutional units are incorporated into its backbone. Electric field independent charge carrier mobility (µhole) for AnE-PVstat as demonstrated by CELIV and OFET measurements is predominantly an intrachain process and less an interchain one, which is in line with past photoconductivity results from PPE-PPV based materials. The present side chain distribution favors efficient solar cell active layer phase separation. As a result, a smaller amount of PC60BM is needed to achieve relatively high energy conversion efficiencies above 3%.
Workplace	Institute of Macromolecular Chemistry
Contact	Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358
Year of Publishing	2011

Number of the records: 1