Microcrystalline organic semiconductor film, organic semiconductor transistor, and method for producing organic semiconductor transistor

Abstract

To provide: an organic semiconductor film which is capable of effectively inhibiting the formation and expansion of cracks, even if patterned or exposed to high heat; an organic semiconductor transistor in which the organic semiconductor film is used; and a method for producing the organic semiconductor transistor. Provided are: a microcrystalline organic semiconductor film including a compound which has a molecular weight of 3000 or lower, and which is represented by general formula (1), the size of crystal domains in said microcrystalline organic semiconductor film being at least 1 nm, but not more than 100 nm; an organic semiconductor transistor in which the organic semiconductor film is used; and a method for producing the organic semiconductor transistor. X, Y, and Z represent specific ring-forming atoms. R1 and R2 each represent hydrogen, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, or a heteroaryl group. R3 and R4 each represent a halogen, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, or a heteroaryl group. m and n are integers in the range of 0-2.

Description

technical field [0001] The invention relates to a microcrystalline organic semiconductor film, an organic semiconductor transistor and a method for manufacturing the organic semiconductor transistor. Background technique [0002] In logic circuits such as liquid crystal displays, organic electroluminescence displays, and other displays, RFID (radio frequency identifier: RF tags), and memories, tiny transistors are accumulated as switching elements. An organic semiconductor transistor (field-effect transistor) using an organic semiconductor compound as a semiconductor layer can be reduced in weight and is also excellent in flexibility. Therefore, it is attracting attention as a next-generation transistor replacing a transistor having a silicon-based semiconductor layer, and research and development are underway. [0003] In improving the performance of organic semiconductor transistors, improvement of carrier mobility is an important factor. By increasing the carrier mobili...

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