INK COMPOSITION AND METHOD FOR PRODUCING SAME

The present invention further improves the measurement accuracy of the viscosity of an ink composition. An ink composition for forming a functional layer of an organic photoelectric conversion element, wherein an electron spin concentration per 1 L of volume of the ink composition is 250×1016 or les...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	INOKUCHI, Daisuke, ISHINO, Yuta
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS DYES ELECTRICITY FILLING PASTES INKS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	The present invention further improves the measurement accuracy of the viscosity of an ink composition. An ink composition for forming a functional layer of an organic photoelectric conversion element, wherein an electron spin concentration per 1 L of volume of the ink composition is 250×1016 or less. The ink composition may be an ink composition containing a solvent and a p-type semiconductor material. The ink composition may be an ink composition in which the p-type semiconductor material contains a polymer compound having an electron spin concentration per 1 g of weight of 70×1016 or less. The ink composition may be an ink composition in which the solvent contains one or more types of organic solvents and the p-type semiconductor material contains a π-conjugated polymer compound containing a donor constitutional unit and an acceptor constitutional unit.