Patent ID: 9640390
Date: 2017-05-02
CPC Classifications: C08G,C08K,C09D,H01L

Claim:
1. An ink formulation comprising: a) a silane, germane, and/or silagermane compound containing at least five Si and/or Ge atoms; b) a dopant and/or dopant precursor in an initial concentration of from 0.001 M to 0.1 M and in an amount effective to (i) provide a film made from the silane, germane, and/or silagermane compound with a dopant atom concentration of from 1 to 10 ppm relative to the number of Si and Ge atoms and (ii) control a threshold voltage of a thin film transistor including the film, wherein the dopant and/or dopant precursor has the formula PR c) a solvent selected from the group consisting of linear alkanes, cycloalkanes, arenes, fluoroalkanes and siloxanes, wherein the dopant and/or dopant precursor is soluble in the ink formulation.