Solar Cell Paste Market: Overview
Solar cell paste is a conductive material applied on solar wafer. It consists of organic and inorganic elements scattered evenly to form a viscous paste. The organic component plays the role of carrier, which after evaporation, leaves a layer of inorganic based inks on the solar cell. Inorganic components present in the paste provide different functions. For instance, Ag (silver) powder added to paste increases the rate of conductivity of solar cells. The ability to customize the content of solar cell paste can enhance features such as adhesion strength, better line conductivity, better aspect ratio, and better manufacturing processing phase window.
The application of solar cell paste to the solar cell certainly improves features of the solar cell. The improvements directly do not increase the efficiency of electrical current transfer, but improves the overall operation of the solar cell. Generally, the use of silver solar cell paste leads to an increase in efficiency in range of 0.2%-0.4% over standard monocrystalline silicon solar cell paste. Thin film solar cells, such as copper indium gallium selenide (CIGS) and cadmium telluride (CdTe), have low efficiency compared to monocrystalline solar cells. The efficiency of thin film solar cell can be increased by using solar cell paste.
Solar Cell Paste Market: Key Segmentation
The solar cell paste market can be segmented based on type and region. In terms of type, the solar cell paste market can be divided into aluminum (Al) solar cell paste, front-side silver (Ag) solar cell paste, and back-side silver (Ag) solar cell paste. The aluminum (Al) solar cell paste is applied on the rear side of the solar cell which helps make a uniform, high quality back surface field for single and multi-crystalline solar cells. Uniform back surface field and good adhesion of the solar wafer yields better efficiency than other commercially available solar paste. Aluminum solar cell paste delivers low bowing, excellent efficiency, high material compatibility, and better adhesion. The formulation of the paste can also be customized.
Silver solar cell paste is divided into front side and back side. Front side silver solar paste is ideal for lightly doped emitter design. It offers fine line resolution and good aspect ratio. Front side silver solar paste has high adhesion capacity and high soldering capacity. It captures high efficiency and has wider processing window. The paste is used in a wide range of sheet emitter wafers. Back side silver solar paste offers good soldering capacity and lowers material consumption in solar PV cell manufacturing. The paste has high compatibility with silicone wafer, high adhesion, and is co-firable with front silver paste and back aluminum paste.
Solar Cell Paste Market: Regional Outlook
Based on region, the global solar cell paste market can be segregated into North America, Europe, Latin America, Middle East & Africa, and Asia Pacific. Asia Pacific is projected to lead the global solar cell paste market during the forecast period, as the investment in solar power is increasing in China and India. The solar cell paste market in North America and Europe is likely to expand at a rapid pace during the forecast period. Latin America and Middle East & Africa are expected to hold moderate share of the global solar cell paste market during the forecast period.
Solar Cell Paste Market: Key Players
Key players operating in the solar cell paste market include DuPont, Heraeus Holding, NORITAKE CO., LIMITED, Giga Solar Materials Corp., NAMICS CORPORATION., Dongjin Semichem Co., Ltd., Targray, and Daejoo Electronic Materials.