J 2016

Naphthacenodithiophene Based Polymers-New Members of the Acenodithiophene Family Exhibiting High Mobility and Power Conversion Efficiency

KNALL, A.C., R.S. ASHRAF, M. NIKOLKA, C.B. NIELSEN, B. PURUSHOTHAMAN et. al.

Basic information

Original name

Naphthacenodithiophene Based Polymers-New Members of the Acenodithiophene Family Exhibiting High Mobility and Power Conversion Efficiency

Name in Czech

Polymery založené na naftsalacenoditiofenu – nové členy rodiny acenodithiofenu vykazující vysokou mobilitu a účinnost transformace energie.

Authors

KNALL, A.C. (40 Austria), R.S. ASHRAF (356 India), M. NIKOLKA (826 United Kingdom of Great Britain and Northern Ireland), C.B. NIELSEN (752 Sweden), B. PURUSHOTHAMAN (356 India), A. SADHANALA (356 India), M. HURHANGEE (826 United Kingdom of Great Britain and Northern Ireland), K. BROCH (276 Germany), D.J. HARKIN (826 United Kingdom of Great Britain and Northern Ireland), Jiří NOVÁK (203 Czech Republic, guarantor, belonging to the institution), M. NEOPHYTOU (682 Saudi Arabia), P. HAYOZ (756 Switzerland), H. SIRRINGHAUS (826 United Kingdom of Great Britain and Northern Ireland) and I. MCCULLOCH (826 United Kingdom of Great Britain and Northern Ireland)

Edition

ADVANCED FUNCTIONAL MATERIALS, GERMANY, WILEY-V C H VERLAG GMBH, 2016, 1616-301X

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10302 Condensed matter physics

Country of publisher

Germany

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 12.124

RIV identification code

RIV/00216224:14310/16:00092404

Organization unit

Faculty of Science

DOI

UT WoS

000386159300011

Keywords (in Czech)

polovodiče; polymery; solární články; organické uni-polární tranzistory; UV-vis absorbce; phyblivost nositelů; účinnost transformace energie

Keywords in English

Semiconductors; polymers; solar cells; organic field effect transistors; UV-vis absorption; charge mobility; power conversion efficiency

Tags

Tags

International impact, Reviewed
Změněno: 5/3/2020 11:50, Mgr. Marie Šípková, DiS.

Abstract

V originále

Wide-bandgap conjugated polymers with a linear naphthacenodithiophene (NDT) donor unit are herein reported along with their performance in both transistor and solar cell devices. The monomer is synthesized starting from 2,6-dihydroxynaphthalene with a double Fries rearrangement as the key step. By copolymerization with 2,1,3-benzothiadiazole (BT) via a palladium-catalyzed Suzuki coupling reaction, NDT-BT co-polymers with high molecular weights and narrow polydispersities are afforded. These novel wide-bandgap polymers are evaluated as the semiconducting polymer in both organic field effect transistor and organic photovoltaic applications. The synthesized polymers reveal an optical bandgap in the range of 1.8 eV with an electron affinity of 3.6 eV which provides sufficient energy offset for electron transfer to PC70BM acceptors. In organic field effect transistors, the synthesized polymers demonstrate high hole mobilities of around 0.4 cm(2) V-1 s(-1). By using a blend of NDT-BT with PC70BM as absorber layer in organic bulk heterojunction solar cells, power conversion efficiencies of 7.5% are obtained. This value is among the highest obtained for polymers with a wider bandgap (larger than 1.7 eV), making this polymer also interesting for application in tandem or multijunction solar cells.

Links

LQ1601, research and development project
Name: CEITEC 2020 (Acronym: CEITEC2020)
Investor: Ministry of Education, Youth and Sports of the CR