METHODS OF FORMING A PHOTORECEPTOR DEVICE HAVING A SELF-ASSEMBLED PATTERNED BINDER LAYER
First Claim
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1. A method of forming a patterned binder layer having a binder material by a self-assembly process on a substrate, comprising:
- spreading a solution comprising a polymer and a solvent onto a flat support;
evaporating the solvent;
during evaporation, optionally providing a flow of gas such that non-solvent vapor condenses at an interface between air and the solution;
precipitating the polymer at the interface of the non-solvent vapor condensation to form the binder layer;
partially or fully encapsulating non-solvent droplets of the non-solvent vapor condensation within the precipitated polymer; and
evaporating the non-solvent droplets to form hollow spaces in the patterned binder layer.
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Abstract
Methods of forming a self-assembled patterned binder layer, which may include at least one functional material, that is particularly suitable for use in photoreceptor devices.
45 Citations
30 Claims
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1. A method of forming a patterned binder layer having a binder material by a self-assembly process on a substrate, comprising:
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spreading a solution comprising a polymer and a solvent onto a flat support; evaporating the solvent; during evaporation, optionally providing a flow of gas such that non-solvent vapor condenses at an interface between air and the solution; precipitating the polymer at the interface of the non-solvent vapor condensation to form the binder layer; partially or fully encapsulating non-solvent droplets of the non-solvent vapor condensation within the precipitated polymer; and evaporating the non-solvent droplets to form hollow spaces in the patterned binder layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of forming a patterned binder layer having a binder material by a self-assembly process on a substrate, comprising:
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depositing a block copolymer such that the block copolymer self assembles to form a binder layer, and applying a solvent to dissolve a portion of the block copolymer to form a self-assembled patterned binder layer having hollow spaces. - View Dependent Claims (18, 19, 20, 21, 22)
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23. A method of forming a patterned binder layer having a binder material by a self-assembly process on a substrate, comprising:
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submersing a substrate into a solution having a polymer and a solvent, pulling the substrate out of the solution at a rate of from about 20 cm/min. to about 60 cm/min., thereby forming a film on the substrate, and drying the film at a temperature of from about 15°
C. to about 600°
C. to form the patterned binder layer having hollow spaces. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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Specification