| 摘要 |
PURPOSE: A collector is provided to reduce the use of organic solvent with maintaining moderate viscosity for installing inside device by restraining the generation of a dark spot. CONSTITUTION: A collector is obtained by substituting a portion or whole part of an organic solvent in an organometallic compound, which is in chemical formula 1 as a dried compound, by a material having viscosity. In chemical formula 1, R is an organic group including an alkyl group, an aryl group, an alkoxy group, a cycloalkyl group, a heterocyclic group and an acyl group, m is trivalent metal atom, n is the integer of one or more meaning the degree of polymerization, and R is respectively organic group same or different.
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