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Product Code M241-200mg
Price £220 ex. VAT

TMTES-Pentacene, an ideal small-molecule semiconductor for device fabrication

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1,4,8,11-tetramethyl-6,13-triethylsilylethynyl pentacene also known as TMTES-Pentacene. It is a soluble derivative of Pentacene [1], achieving mobilities of up to 4.34 cm2/Vs. TMTES-Pentacene is an ideal small-molecule semiconductor for both device fabrication and investigating the charge transport of solution-processed crystal semiconductor [4]. Mobilities of 3.5 cm2/Vs have been measured when spin coated using CYTOP© as the gate dielectric [2], and mobilities of up to 4.34 cm2/Vs have been achieved when used with high-permittivity polymer binders [3].

General Information

Full name 1,4,8,11-tetramethyl-6,13-triethylsilylethynyl pentacene
Synonyms TMTES-pentacene
CAS number n/a
Molecular formula C42H50Si2
Molecular weight 611.017 g/mol
Appearance Black crystalline solid
Solvents Anisole, butylbenzene, chlorobenzene, chloroform, dichlorobenzene, tetrahydrofuran, toluene, xylene
Recommended solvent Toluene
Recommended concentration 10 mg/ml (drop cast / spin cast)
TMTES pentacene chemical structure
Chemical structure of TMTES-pentacene. Chemical formula C42H50Si2.


1H-NMR trace for TMTES pentacene
TMTES-Pentacene NMR trace.


(Please note that Ossila has no formal connection to any other authors or institutions in these references):

[1] High performance, acene-based organic thin film transistors. Gonzalo R Llorente et al., Chem. Commun., p3059-3061 (2009)

[2] Charge-transport physics of high-mobility molecular semiconductors. H Sirringhaus et al., Status Solidi B., V 9, 1655-1676 (2012)

[3] High Performance Organic Transistors Using Small Molecule Semiconductors and High Permittivity Semiconducting Polymers. Keri L McCall et al., Advanced Functional Materials, V 17, Issue 17, p3421-3434 (2007)

[4] Hall-Effect Measurements Probing the Degree of Charge-Carrier Delocalization in Solution-Processed Crystalline Molecular Semiconductors. Jui-Fen Chang et al., PhysRe Lett, V 107, 066601 (2011)

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