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Takeda A.,University of Shiga Prefecture | Oku T.,University of Shiga Prefecture | Suzuki A.,University of Shiga Prefecture | Akiyama T.,University of Shiga Prefecture | Yamasaki Y.,Orient Chemical Industries Co.
Synthetic Metals | Year: 2013

Fullerene-based solar cells with normal and inverted structures containing phthalocyanine and naphthalocyanine dimers were fabricated by vacuum evaporation. Power conversion efficiencies were measured under simulated sunlight conditions. Fabricated devices exhibited high stability in air and a wide optical absorption from 320 to 800 nm. A carrier transport mechanism is proposed based on the energy level diagram. © 2013 Elsevier B.V. All rights reserved.

Orient Chemical Industries Co. | Date: 2016-04-01

Water soluble dyes; direct dyes; acid dyes; mordant dyes; dyes for coloring aluminium; anodizing dyes; dyes for anodization; dyes; dyestuffs; pigments for coloring aluminium; anodizing pigments; pigments for anodization; pigments; colorants for coloring aluminium; water soluble dyes for coloring alumilite.

Orient Chemical Industries Co. | Date: 2012-05-17

Here is provided a charge control resin which is prompt in charge rising up, excellent in electrostatic charging propensity and easy in manufacturing. This charge control resin contains a polymer as an active ingredient having a constituent unit represented by following Formula (1) in the Formula (1), R

Orient Chemical Industries Co. | Date: 2012-02-27

Provided is a charge control agent that gives toner a practical level of negative chargeability, is colorless or a light color and can be used in a color toner, has an electrostatic charge from charging of a resin powder, such as the toner used, that is stable against environmental change, and has the characteristics of: excellent temporal stability of charge control characteristics, i.e., storage stability; excellent stability of charge control characteristics when repeatedly used a number of times, i.e., durability; and high stability without containing toxic heavy metals. The charge control agent comprises a phenol multimeric mixture containing a plurality of phenol multimeric types indicated by the following chemical formula (1) (wherein R

Teixeira Tasso T.,Tohoku University | Yamasaki Y.,Orient Chemical Industries Co. | Furuyama T.,Tohoku University | Kobayashi N.,Tohoku University
Dalton Transactions | Year: 2014

The aggregation equilibrium of a series of positively-charged water-soluble phthalocyanines (Pcs) was studied in aqueous solution by means of absorption and fluorescence techniques. The aggregation equilibrium in water depends on the bridging atoms between the pyridyl groups and the Pc core, and on the central metal of the Pcs, while N-alkyl groups are virtually uninvolved in the aggregation properties. Thus, in the water-methanol mixture, the aggregation tendency increased in the order of Zn < Cu ≤ Ni, Pd when the ligand is the same, while the bridging element sulfur gives much more propensity for aggregation compared to oxygen. The fluorescence quantum yields of the Pcs showed an excellent correlation with the extent of aggregation. © 2014 the Partner Organisations.

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