Novaled Gmbh

Katja Gräf

Francois Cardinali

Julien Frey

Ulrich Denker

Johannes Scholz

Carsten Rothe

Benjamin Schulze

Omrane Fadhel

Volodymyr Senkovskyy

Domagoj Pavicic

Ulrich Heggemann

Vygintas Jankus

Bodo Wallikewitz

Mike Zöllner

The present invention is directed to a semiconducting material comprising: i) a compound according to formula (I) wherein R, Rand Rare independently selected from C-C-alkyl, C-Ccycloalkyl, C-C-heteroalkyl, C-C-aryl, C-C-heteroaryl, C-C-alkoxy, C-C-cycloalkyloxy, C-Caryloxy, and from structural unit having general formula E-A-, wherein&#x2014;A is a C-Cphenylene spacer unit, and&#x2014;E is an electron transporting unit that is selected from C-Caryl and C-Cheteroaryl comprising up to 6 heteroatoms independently selected from O, S, P, Si and B and that comprises a conjugated system of at least 10 delocalized electrons, and&#x2014;at least one group selected from R, Rand Rhas the general formula E-A-; and ii) at least one complex of a monovalent metal having formula (II) wherein&#x2014;Mis a positive metal ion bearing a single elementary charge, and each of A, A, Aand Ais independently selected from H, substituted or unsubstituted C-Caryl and substituted or unsubstituted C-Cheteroaryl, wherein a heteroaryl ring of at least 5 ring-forming atoms of the substituted or unsubstituted C-Cheteroaryl comprises at least one hetero atom selected from O, S and N. 

Semiconducting material comprising a phosphine oxide matrix and metal salt

The present invention is directed to a compound comprising at least one phosphepine ring and having the phosphorous atom of the phosphepine ring substituted with at least one monovalent substituent R, wherein (i) R is selected from aryls and heteroaryls comprising at least two rings or (ii) R is selected from aryls, alkyls, heteroalkyls, heteroaryls, H, F, CI, Br, I, OH, and OR*, wherein R* is selected from C1-C22 alkyl and C7-C22 arylalkyl, and the hosphepine ring is a ring according to formula (I), wherein structural moieties A, B, C are independently selected from ortho-arylenes and ortho-heteroarylenes, with the proviso that neither A nor B is a condensed arylene, and C comprises at least two annelated rings, a semiconducting material comprising this compound as well as an electronic device comprising the semiconducting material.

Phosphepine matrix compound for a semiconducting material

The present invention is directed to matrix compounds and an organic light-emitting diode (OLED) comprising an emission layer and an electron transport layer stack of at least two electron transport layers, wherein a first electron transport layer and a second electron transport layer comprises at least one matrix compound, wherein the matrix compound or compounds of the first electron transport layer is/are different to the matrix compound or compounds of the second electron transport layer; and in addition, the first electron transport layer comprises a dopant of a lithium halide and/or lithium organic complex; and the second electron transport layer is free of a dopant; wherein at least one matrix compound of the second electron transport layer having the chemical formula Ia, Ib and/or Ic: (Ia) (Ib) (Ic) wherein Ar=substituted or unsubstituted arylene with 6 to 20 ring-forming carbon atoms; or carbazolylene; ET=substituted or unsubstituted aryl group with 13 to 40 ring-forming carbon atoms; or a substituted or unsubstituted heteroaryl group with 14 to 40 ring-forming atoms. 

Organic light-emitting diode comprising different matrix compounds in the first and second electron transport layer

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Dresden, Germany

Katja Gräf