Semiconductor compound
A thiaxanthenothiaxanthene compound of Formula (I): wherein R 1 to R 10 are independently selected from the group consisting of hydrogen, an alkyl group, a substituted alkyl group, an alkoxy group, an alkylthio group, an alkenyl group, a substituted alkenyl group, an ethynyl group, a substituted ethynyl group, an aryl group, a substituted aryl group, a heteroaryl group, a substituted heteroaryl group, a trialkylsilyl group, a fluorohydrocarbon group, a cyano group and a halogen; and wherein the semiconductor of Formula (I) is predominantly crystalline or liquid crystalline. The compounds are designed to ensure air stability, good solubility, and high mobility.
1. An electronic device comprising:
a dielectric layer; and
a semiconducting layer in direct contact with a surface of the dielectric layer,
wherein the semiconducting layer includes a polymer binder and molecules of a thiaxanthenothiaxanthene compound of Formula (I):
wherein R 1 to R 10 are independently selected from the group consisting of hydrogen, an alkyl group, a substituted alkyl group, an alkoxy group, an alkylthio group, an alkenyl group, a substituted alkenyl group, an ethynyl group, a substituted ethynyl group, an aryl group, a substituted aryl group, a heteroaryl group, a substituted heteroaryl group, a trialkylsilyl group, a fluorohydrocarbon group, a cyano group and a halogen; and
wherein the molecules of the compound of Formula (I) are predominantly crystalline or liquid crystalline in the semiconducting layer.
2. The electronic device of claim 1 , wherein at least one of R 1 to R 10 is not hydrogen.
3. The electronic device of claim 1 , wherein R 2 and R 7 are selected from the group consisting of an alkyl group, a substituted alkyl group, an alkenyl group, a substituted alkenyl group, an ethynyl group, a substituted ethynyl group, an aryl group, a substituted aryl group, a heteroaryl group, a substituted heteroaryl group, and a halogen.
4. The electronic device of claim 3 , wherein R 1 , R 3 , R 4 , R 5 , R 6 , R 8 , R 9 , and R 10 are hydrogen.
5. The electronic device of claim 3 , wherein R 2 and R 7 are the same.
6. The electronic device of claim 1 , wherein the polymer binder is selected from the group consisting of polymethylmethacrylate, polystyrene, poly(a-methyl styrene), poly(4-methyl styrene), poly(a-methyl styrene-co-vinyl toluene), poly(styrene-block-butadiene-block-styrene), polystyrene-block-isoprene-block-styrene ), poly (vinyl toluene), poly (vinyl naphthalene), poly (vinyl pyridine), terpene resin, poly(styrene-co-2,4-dimethylstyrene), poly(chlorostyrene), poly(styrene-co-a-methyl styrene), poly(styrene-co-butadiene) , polycarbazole, polytriarylamine, poly(N-vinylcarbazole), polythiophene, and a mixture thereof.
7. The electronic device of claim 1 , wherein the surface of the dielectric layer is modified by an organosilane.