A method for additive manufacture, comprising: depositing a film of a feedstock onto a platen of a three-dimensional printer, wherein the feedstock comprises a solution and a nanoparticle having negative electron affinity; inducing the nanoparticle to emit solvated electrons into the solution using a laser to form, by reduction, layers of a ceramic and a diatomic halogen; wherein each layer of the ceramic is formed in a shape corresponding to a cross section of an object; wherein the film of the feedstock is deposited until the layers of the ceramic form the shape of the object; wherein the solution is one or more of carbon tetrachloride or carbon tetrabromide; and the ceramic comprises a polycrystalline diamond; or wherein the solution is (dichloroamine)dichloroborane; and the ceramic comprises boron-nitride ceramic; or wherein a metal or semi-metal halogen is added to carbon tetrachloride as the solution; when the ceramic is a metal carbide ceramic; wherein, in case of a silicon carbide ceramic, a solution comprising carbon and silicon, such as trimethyltrichlorosilane, is used; in case of a silicon carbide ceramic, a solution comprising carbon tetrachloride and silicon tetrachloride is used; in case of a titanium carbide ceramic, a solution comprising carbon tetrachloride and titanium tetrachloride is used; in case of a hafnium carbide ceramic, a solution comprising carbon tetrachloride and hafnium tetrachloride is used; in case of vanadium carbide, a solution comprising carbon tetrachloride and vanadium tetrachloride is used; and in case of tungsten carbide ceramic, a solution comprising carbon tetrachloride and tungsten hexachloride is used; orwherein the solution comprises carbon tetrachloride as an sp 3 -carbon contributor and dichloroacetylene as an sp 1 -carbon contributor, and the ceramic comprises a mixed carbon hybrid orbital ceramic; or wherein the solution comprises tetrachloroethylene as an sp 2 -carbon contributor and carbon tetrachloride as an sp 3 carbon contributor, and the ceramic comprises a mixed carbon hybrid orbital ceramic; or wherein the solution is a halogenated silicon-carbon compound, and the nanoparticle is a hydrogen-terminated silicon carbide nanoparticle. depositing a film of a feedstock onto a platen of a three-dimensional printer, wherein the feedstock comprises a solution and a nanoparticle having negative electron affinity; inducing the nanoparticle to emit solvated electrons into the solution using a laser to form, by reduction, layers of a ceramic and a diatomic halogen; wherein each layer of the ceramic is formed in a shape corresponding to a cross section of an object; wherein the film of the feedstock is deposited until the layers of the ceramic form the shape of the object; wherein the solution is one or more of carbon tetrachloride or carbon tetrabromide; and the ceramic comprises a polycrystalline diamond; or wherein the solution is (dichloroamine)dichloroborane; and the ceramic comprises boron-nitride ceramic; or wherein a metal or semi-metal halogen is added to carbon tetrachloride as the solution; when the ceramic is a metal carbide ceramic; wherein, in case of a silicon carbide ceramic, a solution comprising carbon and silicon, such as trimethyltrichlorosilane, is used; in case of a silicon carbide ceramic, a solution comprising carbon tetrachloride and silicon tetrachloride is used; in case of a titanium carbide ceramic, a solution comprising carbon tetrachloride and titanium tetrachloride is used; in case of a hafnium carbide ceramic, a solution comprising carbon tetrachloride and hafnium tetrachloride is used; in case of vanadium carbide, a solution comprising carbon tetrachloride and vanadium tetrachloride is used; and in case of tungsten carbide ceramic, a solution comprising carbon tetrachloride and tungsten hexachloride is used; orwherein the solution comprises carbon tetrachloride as an sp 3 -carbon contributor and dichloroacetylene as an sp 1 -carbon contributor, and the ceramic comprises a mixed carbon hybrid orbital ceramic; or wherein the solution comprises tetrachloroethylene as an sp 2 -carbon contributor and carbon tetrachloride as an sp 3 carbon contributor, and the ceramic comprises a mixed carbon hybrid orbital ceramic; or wherein the solution is a halogenated silicon-carbon compound, and the nanoparticle is a hydrogen-terminated silicon carbide nanoparticle.