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685070

Sigma-Aldrich

F8T2

99.9%

Synonym(s):

Poly(9,9-dioctylfluorene-alt-bithiophene), Poly[(9,9-dioctylfluorenyl-2,7-diyl)-co-bithiophene], Poly[[2,2′-bithiophene]-5,5′-diyl(9,9-dioctyl-9H-fluorene-2,7-diyl)]

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About This Item

Linear Formula:
(C37H44S2)n(C8H9)2
CAS Number:
UNSPSC Code:
12352103
NACRES:
NA.23

Quality Level

Assay

99.9%

form

powder

mol wt

average Mn >20,000

fluorescence

λex 400 nm; λem 497 nm in chloroform (at Mn = 20,000)

semiconductor properties

P-type (mobility=5×10−3 cm2/V·s)

General description

F8T2 is a fluorenated semiconducting polymer which can be used as a hole transporting layer with mobility of 0.02cm2V-1s-1. It is highly stable in vacuum and UV based environment. Its liquid crystallinity allows it to form a self-ordered nanostructure on organic thin films.
Typically soluble in THF, Dichloromethane, or Tolune. (c = 1%, typical appearance may be clear to turbid).
Polymer is end-capped with 3,5-dimethylbenzene.

Application

F8T2 can be majorly used in the fabrication of active layers for optoelectronics and energy based devices such as organic field effect transistors(OFETs), solar cells, light emitting diodes(LEDs) and electronic gas sensors.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Structural ordering in F8T2 polyfluorene thin film transistors.
Organic Field Effect Transistors II, 5217, 35-43 (2003)
Controlling of spectral and optical parameters of the F8T2 liquid-crystalline polymer (LCP) by molarity for optoelectronic devices.
Gunduz B.
Optik, 126(23), 4566-4573 (2015)
Modulating the charge injection in organic field-effect transistors: fluorinated oligophenyl self-assembled monolayers for high work function electrodes.
Fenwick O, et al.
Journal of Material Chemistry C, 3(13), 3007-3015 (2015)
Photovoltaic properties and charge dynamics in nanophase-separated F8T2/PCBM blend films.
Yasuda T, et al.
J. Photopolym. Sci. Technol., 25(3), 271-276 (2012)
Morana, M.; Bret, G.; Brabec, C.
Applied Physics Letters, 87, 153511-153511 (2005)

Articles

The development of high-performance conjugated organic molecules and polymers has received widespread attention in industrial and academic research.

Organic photovoltaics (OPVs) represent a low-cost, lightweight, and scalable alternative to conventional solar cells. While significant progress has been made in the development of conventional bulk heterojunction cells, new approaches are required to achieve the performance and stability necessary to enable commercially successful OPVs.

There is widespread demand for thin, lightweight, and flexible electronic devices such as displays, sensors, actuators, and radio-frequency identification tags (RFIDs). Flexibility is necessary for scalability, portability, and mechanical robustness.

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