摘要:
Disclosed herein is a composition comprising a regioregular polyalkylthiophene and/or a regioregular poly[2,5-bis(3-alkylthiophen-2-yl)thieno(3,2-b)thiophene]; and a metallocene; where the metallocene is present in an amount of greater than 50 wt %, based on the total weight of the composition. Disclosed herein too is a method of manufacturing a thin film comprising dissolving a regioregular polyalkylthiophene or a regioregular poly[2,5-bis(3-alkylthiophen-2-yl)thieno(3,2-b)thiophene] in a solvent to form a solution; dissolving a metallocene in the solution; disposing the solution on a substrate; and annealing the substrate.
摘要:
Disclosed herein is a composition comprising a regioregular polyalkylthiophene and/or a regioregular poly[2,5-bis(3-alkylthiophen-2-yl)thieno(3,2-b)thiophene]; and a metallocene; where the metallocene is present in an amount of greater than 50 wt %, based on the total weight of the composition. Disclosed herein too is a method of manufacturing a thin film comprising dissolving a regioregular polyalkylthiophene or a regioregular poly[2,5-bis(3-alkylthiophen-2-yl)thieno(3,2-b)thiophene] in a solvent to form a solution; dissolving a metallocene in the solution; disposing the solution on a substrate; and annealing the substrate.
摘要:
Disclosed herein is a composition comprising a regioregular oligothiophene, a regioregular poly[2,5-bis(3-alkylthiophen-2-yl)thieno(3,2-b)thiophene] and/or a benzothiophene; where the regioregular oligothiophene, the regioregular poly[2,5-bis(3-alkylthiophen-2-yl)thieno(3,2-b)thiophene] and the benzothiophene each have a number average molecular weight of less than or equal to 475 grams per mole; where the composition is melted and then annealed at a temperature between a melting point and a glass transition temperature of the composition; the composition having a charge mobility that is greater than a comparative composition that is either not annealed or annealed at the same temperature between the melting point and the glass transition temperature but without being subjected to prior melting.
摘要:
Disclosed herein is a composition comprising a regioregular oligothiophene, a regioregular poly[2,5-bis(3-alkylthiophen-2-yl)thieno(3,2-b)thiophene] and/or a benzothiophene; where the regioregular oligothiophene, the regioregular poly[2,5-bis(3-alkylthiophen-2-yl)thieno(3,2-b)thiophene] and the benzothiophene each have a number average molecular weight of less than or equal to 475 grams per mole; where the composition is melted and then annealed at a temperature between a melting point and a glass transition temperature of the composition; the composition having a charge mobility that is greater than a comparative composition that is either not annealed or annealed at the same temperature between the melting point and the glass transition temperature but without being subjected to prior melting.
摘要:
Novel membranes based on functionalized porous inorganic materials for ion exchange and conduction have been synthesized and characterized. The preparation procedure of these new membranes involves the synthesis of porous inorganic films, into which hydrophilic moieties are incorporated along the interior pore surfaces of the inorganic framework. Ion-conducting species are grafted into the pores via reactions with surface groups of the inorganic framework to allow for ion transport through the pore network.
摘要:
Methods of controlling orientational ordering in self-assembled materials are described. These methods include controlling the nucleation rate and growth of block-copolymer-templated silica domains to yield macroscopically aligned mesostructured materials, and forming patterned mesostructured films or monoliths with control over the direction of alignment of a hexagonally-packed, block-copolymer-directed mesostructure across macroscopic lengths scales are described. Self-assembled materials with controlled orientational ordering are described, including those that contain a surfactant or block-copolymer species, and materials that include an organic (e.g., resin) or inorganic (e.g., silica or titania) network-forming component.
摘要:
Methods of forming an electrically-conductive mesoporous carbon structure with interconnected pores or highly interconnected pores, and the resulting structures are described. The structure is formed by providing a mesoporous template, filling the mesopores with an organic precursor, polymerizing the organic precursor, pyrolyzing the polymerized organic precursor, and etching away the template.
摘要:
Methods of forming an electrically-conductive mesoporous carbon structure with interconnected pores or highly interconnected pores, and the resulting structures are described. The structure is formed by providing a mesoporous template, filling the mesopores with an organic precursor, polymerizing the organic precursor, pyrolyzing the polymerized organic precursor, and etching away the template.
摘要:
A material and method for producing mesostructured materials with multiple functionalities that are independently adjustable and collectively optimizable is provided. The method uses a series of discrete synthesis steps under otherwise mutually incompatible conditions, e.g., from acidic, alkaline, and/or non-aqueous solutions, allows different functionalities to be introduced to the materials and optimized. To illustrate the method, cubic mesoporous silica films were prepared from strongly acidic solutions that were separately functionalized under highly alkaline conditions to incorporate hydrophilic aluminosilica moieties and under non-aqueous conditions to introduce perfluorosulfonic-acid surface groups.
摘要:
A material and method for producing mesostructured materials with multiple functionalities that are independently adjustable and collectively optimizable is provided. The method uses a series of discrete synthesis steps under otherwise mutually incompatible conditions, e.g., from acidic, alkaline, and/or non-aqueous solutions, allows different functionalities to be introduced to the materials and optimized. To illustrate the method, cubic mesoporous silica films were prepared from strongly acidic solutions that were separately functionalized under highly alkaline conditions to incorporate hydrophilic aluminosilica moieties and under non-aqueous conditions to introduce perfluorosulfonic-acid surface groups.