TECHNOLOGY FOCUS - ELECTRONICS - Preferred Module: In the transparent solar cell module, the first conductive type layer is a p-type layer and the second conductive type stacked layer is an n-type stacked layer. The n-type stacked layer comprises at least one n-type material layer with a low refractive index and at least one n-type material layer with a high refractive index, and a difference between the refractive index of the n-type material layer with the high refractive index and the refractive index of the n-type material layer with the low refractive index is greater than or equal to 1. The refractive index of the n-type material layer with the low refractive index is 2-2.5, and the refractive index of the n-type material layer with the high refractive index is 3-4. The material of the n-type material layer with the high refractive index comprises n-type amorphous silicon (N-a-Si) or n-type microcrystalline silicon (N- mu c-Si), and a material of the n-type material layer with the low refractive index comprises n-type silicon oxide (N-SiOx), n-type silicon nitride (N-SiNx), or n-type silicon carbide (N-SiCx). The n-type material layer with the low refractive index is disposed between the intrinsic layer and the n-type material layer with the high refractive index, and the n-type material layer with the high refractive index is disposed between the n-type material layer with the low refractive index and the second transparent electrode. The p-type layer comprises p-type amorphous silicon, p-type microcrystalline silicon, p-type silicon carbide, or p-type silicon oxide. Moreover, the material of the two second conductive type material layers with different refractive indexes is selected from materials capable of limiting the color code of a transmission spectrum of the transparent solar cell module within a rectangular region formed of a chromaticity diagram of Commission International de l'Eclairage CIE (x,y), in which 0.45 less than x less than 0.55, and 0.4less than y less than 0.5. The material of the two second conductive type material layers with different refractive indexes is selected from materials capable of raising the color rendering index (Ra) of the transmission spectrum of the transparent solar cell module above 80. The material of the two second conductive type material layers with different refractive indexes is selected from materials capable of raising the color temperature (CT) of the transmission spectrum of the transparent solar cell module above 2000 degrees Kelvin. The first conductive type layer is an n-type layer and the second conductive type stacked layer is a p-type stacked layer. The p-type layer comprises p-type amorphous silicon, p-type microcrystalline silicon, p-type silicon carbide, or p-type silicon oxide. Furthermore, the material of the intrinsic layer comprises intrinsic amorphous silicon, intrinsic microcrystalline silicon, fluorine-doped intrinsic amorphous silicon, or fluorine-doped intrinsic microcrystalline silicon. The material of the first transparent electrode and a material of the second transparent electrode comprise transparent conductive oxide. The transparent substrate is a rigid substrate or a flexible substrate. Preferred Method: In fabricating the transparent solar cell module, the process of forming the n-type stacked layer comprises: forming the n-type material layer with the low refractive index on the intrinsic layer; and forming the n-type material layer with the high refractive index on the n-type material layer with the low refractive index.