Asyuda, A.

Barf, M.M.

Benneckendorf, F.S.

Bunz, U.H.F.

Freudenberg, J.

Hillebrandt, S.

Jaegermann, W.

Jänsch, D.

Kowalsky, W.

Müllen, K.

Münch, M.

Pucci, A.

Rohnacher, V.

Rominger, F.

Sauter, E.

Tisserant, J.N.

Zharnikov, M.

A diazatriptycene based tetrapodal scaffold with thiol anchors enforces a nearly upright orientation of functional groups, introduced to its quinoxaline subunit, with respect to the substrate upon formation of self assembled monolayers  SAMs . Substitution with electron withdrawing fluorine and cyano as well as electron rich dimethylamino substituents allows tuning of the molecular dipole and, consequently, of the work function of gold over a range of 1.0 eV  from 3.9 to 4.9 eV . The properties of the SAMs are comprehensively investigated by infrared reflection absorption spectroscopy, near edge X ray absorption fine structure spectroscopy, and X ray photoelectron spectroscopy. As prototypical examples for the high potential of the presented SAMs in devices, organic thin film transistors are fabricate

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Functionalized Tetrapodal Diazatriptycenes for Electrostatic Dipole Engineering in n Type Organic Thin Film Transistors

Functionalized Tetrapodal Diazatriptycenes for Electrostatic Dipole Engineering in n Type Organic Thin Film Transistors

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