Cadmium telluride thin -film solar cell

• Main Authors: JIANG MENG, MA LIYUN, PAN JINGONG, YIN XINJIAN, PENG SHOU
• Format: Patent
• Language: Chinese; English
• Published: 01.09.2017
• Subjects: BASIC ELECTRIC ELEMENTS; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; SEMICONDUCTOR DEVICES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The application discloses a cadmium telluride thin -film solar cell, including the substrate, be provided with the stromatolite film on the substrate, the stromatolite film includes transparent conducting film, window layer, light absorbing zone, back contact layer, back reflection layer and back electrode layer from lower to upper in proper order, the window layer is the cadmium sulfide thin layer, the light absorbing zone is the cadmium telluride thin layer, back contact layer is the cuprous sulfocyanide thin layer, the back reflection layer is the silver film layer. The battery reduces the thickness of light absorbing zone on the basis of the absorption efficiency of guaranteeing the sunlight, reduce the consumption of te raw materials, reduction in production cost, the feasibility height of growing in batches. 本申请公开种碲化镉薄膜太阳能电池，包括衬底，所述衬底上设置有叠层薄膜，所述叠层薄膜由下往上依次包括透明导电膜、窗口层、光吸收层、背接触层、背反射层和背电极层；所述窗口层为硫化镉薄膜层，所述光吸收层为碲化镉薄膜层，所述背接触层为硫氰酸亚铜薄膜层，所述背反射层为银薄膜层。所述电池在保证太阳光的吸收效率的基础上，减小光吸收层的厚度，降低Te原料的消耗，降低生产成本，批量生长可行性高。