NOVELTY - The solar cell comprises a substrate (101), a multiplicity of areas of metal catalyst on a surface of the substrate, a multiplicity of carbon nanotube bundles formed on the multiplicity of areas of metal catalyst, a first photoactive solar cell layer continuously formed over the carbon nanotube bundles and exposed surfaces of the substrate, an electrically conductive layer (102) on the surface of the substrate, and a second photoactive solar cell layer continuous over the first photoactive solar cell layer. The multiplicity of carbon nanotube bundle includes carbon nanotubes (110).    USE - Used as an amorphous silicon or copper indium gallium selenide solar cell.    ADVANTAGE - The solar cell can be easily and efficiently manufactured with high efficiency, excellent energy conversion efficiency and good light transmission characteristics, and improves the electrical interface between carbon nanotube and photoactive absorber layers.    DETAILED DESCRIPTION - The solar cell comprises a substrate (101), a multiplicity of areas of metal catalyst on a surface of the substrate, a multiplicity of carbon nanotube bundles formed on the multiplicity of areas of metal catalyst, a first photoactive solar cell layer continuously formed over the carbon nanotube bundles and exposed surfaces of the substrate, an electrically conductive layer (102) on the surface of the substrate, and a second photoactive solar cell layer continuous over the first photoactive solar cell layer. The multiplicity of carbon nanotube bundle includes carbon nanotubes (110) aligned roughly perpendicular to the surface of the substrate and metal surrounding the carbon nanotubes, are separated from each other by roughly 1 micron, and have an aspect ratio of 10. The substrate includes the electrically conductive layer at the surface of the substrate. The electrically conductive layer electrically connects together the multiplicity of carbon nanotube bundles. The first photoactive solar cell layer conforms to the carbon nanotube bundles, and includes p-type, intrinsic and n-type thin films of amorphous silicon and microcrystalline silicon. INDEPENDENT CLAIMS are included for:    (1) a method of forming a solar cell; and    (2) an apparatus for forming a solar cell.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of a solar cell with carbon nanotube charge transporters.    Substrate (101)    Electrically conductive layer (103) Absorber layer (102)    Buffer layers (104, 105)    Transparent conductive oxide layer (106)    Carbon nanotubes. (110)