Ink composition for organic semiconductor elements, and organic semiconductor element using same
A technology of organic semiconductor and ink composition, which is applied in the fields of semiconductor device, semiconductor/solid-state device manufacturing, ink, etc., can solve problems such as difficulty in ensuring flatness
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Embodiment 1
[0275] 0.005 parts of leveling agent MCS-01 (polyether modified silicone oil, random polymer) represented by the following formula, trifluoromethoxybenzene (TFMB, surface tension: 22mN / M) as the first solvent 50 50 parts and 50 parts of tetralin (surface tension: 35mN / M) as an aromatic solvent were mixed to prepare a mixed liquid. It should be noted that MCS-01 is synthesized by reacting methyl hydrogen-containing silicone oil and alkenyl compound in the presence of a platinum catalyst.
[0276] 0.01 part of HTM-01 (number of repeating units: 100, manufactured by ADS Co., Ltd.) as a hole transport material represented by the following formula was added to the liquid mixture, followed by heating and dissolving. After cooling to room temperature, foreign substances were removed using MAISHORIDISK (manufactured by Tosoh Corporation) which is a filter of 0.45 μm, to prepare an ink composition for an organic light-emitting element.
[0277] [chemical 6]
[0278]
[0279] In ad...
Embodiment 2～10
[0284] Change the first solvent to octane (surface tension: 21mN / M), nonane (surface tension: 22mN / M), decane (surface tension: 23mN / M), undecane (surface tension: 24mN / M ), dodecane (surface tension: 25mN / M), methyl ethyl ketone (MEK, surface tension: 24.6mN / M), methyl isobutyl ketone (MIBK, surface tension: 23.6mN / M), di An ink for an organic light-emitting element was produced in the same manner as in Example 1 except for isobutyl ketone (DIBK, surface tension: 23.9mN / M) and dibutyl ether (surface tension: 22.4mN / M). combination.
[0285] It should be noted that the solvent surface energy A represented by formula (1) is 28 in the case of using octane (Example 2), 28.5 in the case of using nonane (Example 3), and 28.5 in the case of using decane (Example 2). In the case (Example 4), it was 29, in the case of using undecane (Example 5), it was 29.5, in the case of using dodecane (Example 6), it was 30, and in the case of using methyl ethyl ketone In the case (Example 7), it...
Embodiment 11
[0287] Change the leveling agent into the leveling agent MCS-02 (comprising aralkyl modified silicone oil, random polymer, aromatic monomer) represented by the following formula, in addition, by and embodiment 1 In the same way, an ink composition for an organic light-emitting element was produced. It should be noted that MCS-02 was synthesized by the same method as in Example 1 except that the monomers used were changed.
[0288] [chemical 7]
[0289]
[0290] It should be noted that the solvent surface energy A represented by the formula (1) is 28.5.
[0291] Moreover, when the silicon content rate of a leveling agent was measured by the method similar to Example 1, it was 19.3 mass %.
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