| 摘要 |
PURPOSE: A polyalkylviologen-based compound is provided to have excellent electron insertion and transport performance and to have strong solvent resistance to organic solvent after coating, thereby capable of embodying an organic solar cell battery of a laminated type. CONSTITUTION: A polyalkylviologen-based compound is used for a water-soluble polymer interlayer material represented by chemical formula 1. In chemical formula 1, R is (CH2)x, or R is CH2CH2OCH2CH2, CH2CH2OCH2CH2OCH2CH2, or C4-12 linear alkyl group or ethylene oxide wherein x is 4, 6, 8, 10 or 12, and X is Br-, BF4-, PF6- or -phenylsulfonate anion. The number average molecular weight of the polyalkylviologen-based compound is 6,000-20,000. |
