Abstract: A solar cell includes: a semiconductor substrate having a back surface with a first doped region and a second doped region, the back surface being roughened to forma roughened region; a dielectric layer disposed on the back surface; a first electrode having a first surface conforming to the shape of the back surface; and a second electrode having a second surface conforming to the shape of the back surface.

Abstract: A thin film silicon solar cell and a manufacturing method thereof. The thin film silicon solar cell comprises a glass substrate, a first electrode layer, a light absorbing layer, a second electrode layer, and a metal electrode layer sequentially stacked on top of one another. The second electrode layer has a texture surface and concavities formed on the texture surface, and each of the concavities has a width falling within a range of 100 nm-1600 nm and a depth less than 800 nm.

Abstract: The present invention relates to a thin film solar cell. The thin film solar cell comprises a substrate, a transparent conductive layer, a first semiconductor layer, a reflection layer, a reflection enhancing layer, a second semiconductor layer and an electrode layer. The transparent conductive layer is formed on the substrate. The first semiconductor layer is formed on the transparent conductive layer. The reflection layer is formed on the first semiconductor layer, and it is highly refraction and has a plurality of light-transmissive parts. The reflection enhancing layer is formed on the reflection layer, and it has at least a stacking layer including a low refraction index layer and a high refraction index layer. The second semiconductor layer is formed on the reflection enhancing layer. The electrode layer is formed on the second semiconductor layer. The light-transmissive parts are extended to the reflection enhancing layer.

Abstract: The present invention relates to a thin film solar cell and manufacturing method thereof. The thin film solar cell comprises a substrate, a front electrode layer, an absorber layer and a rear electrode layer stacked in such sequence, wherein the front electrode layer is formed by doping group III element into a zinc oxide. The thin-film solar cell further comprise an interlayer disposed between the front electrode layer and the absorber layer wherein the interlayer has p-type holes formed by introducing nitrogen-based gas having Argon (Ar) as a carrier gas interacted with the group III element by using PECVD or thermal treatment, implementation and diffusion on the front electrode layer surface so that the concentration of nitrogen atoms in the interlayer is greater than 1015/cm3.

Abstract: A solar cell structure is provided. The solar cell structure includes a substrate, a front transparent conductive oxide (TCO) layer, a primary light absorbing layer, a back TCO layer, and a metal thin film layer stacked from bottom to top. The back TCO layer includes a coarse upper surface. Or alternatively, the solar cell structure includes a substrate, a front TCO layer, at least one first light absorbing layer, at least one interface layer, at least one second light absorbing layer, a back TCO layer, and a metal thin film layer stacked from bottom to top. The interface layer includes a coarse upper surface. Because of the coarse upper surface of the back TCO layer or the interface layer, the light is facilitated for further scattering, so that the light absorbing efficiency can be improved, thus improving the efficiency of the solar cell.

Abstract: A thin film solar cell having opaque and highly reflective particles and a manufacturing method thereof are provided. The thin film solar cell at least includes a substrate, a front electrode layer, a first photo-electric converting layer, a second photo-electric converting layer, and a back electrode layer. The particles are made of a highly conductive material, disposed between the first photo-electric converting layer and the second photo-electric converting layer, and distributed in a discontinuous manner. When an incident light strikes the surfaces of the particles, the incident light is reflected within the first photo-electric converting layer and the second photo-electric converting layer so as to increase the propagation path of the incident light through the first photo-electric converting layer and the second photo-electric converting layer.