TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Component: The photovoltaic organic molecules generate a photocurrent upon absorbing radiation. They are chemisorbed to the defect sites on the carbon nanotubes so that the absorbed radiation provides excitation transfer from the photovoltaic organic molecules to the carbon nanotubes.The conversion device comprises the solar cell, and/or photodetector. The device includes p- and/or n-type charge transporting layers located in contact with the matrix material. The device has different types of photovoltaic organic molecules attached to the carbon nanotubes, in which the different types of molecules have peak sensitivity to different radiation wavelengths. It has two electrodes, at least one of which is transparent to radiation.The solar cell comprises a Schottky type cell having a single charge generating layer of the matrix material layer containing one type of organic photovoltaic molecule. It comprises a bilayer cell containing a heterojunction of two charge generating layers, each contains a different type of organic photovoltaic molecule.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Component: The formation of the defects sites may involve using acid, which comprises a mixture of sulfuric and nitric acids.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Component: The photovoltaic organic molecules comprise organic dye molecules. The defect sites on the carbon nanotubes comprise carboxyl or 1-6C alkyl (preferably sec-butyl). The organic dye is a phenazine dye comprising phenosafranin (PSF). It is azo dye, phthalocyanine dye, quinine dye, quinoline dye, porphyryne dye, pyrylium dye, and/or perylyne dye. The charge transporting layers are hydrazone compounds, benzidine compounds, or styryl compounds. The formation of defect sites on the nanotubes includes using alkyllithium salt as anionic initiator. The alkyllithium salt is sec-butyllithium that forms sec-butyl groups on the carbon nanotubes.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Component: The formation of the defects sites may involve using acid, which comprises a mixture of sulfuric and nitric acids.    TECHNOLOGY FOCUS - POLYMERS - Preferred Component: The matrix material comprises a polymer matrix material where the carbon nanotubes are well dispersed. It comprises a flexible thin film or a flexible threat formed on a substrate. The polymer matrix material is polyamide, polyester, polyurethane, polysulfonamide, polycarbonate, polyurea, polyphosphonoamide, polyarylate, polyimide, poly(amic ester), poly(ester amide), and/or poly(enaryloxynitrile) matrix.