Khosroabadi Saeed, Keshmiri Seyyed Hossein
Opt Express. 2014 May 5;22 Suppl 3:A921-9. doi: 10.1364/OE.22.00A921.
A high efficiency CdS/CdTe solar cell was designed with a reduced CdTe absorber-layer thickness and a distributed Bragg reflector (DBR) as an optical reflector and a ZnTe layer as back surface field (BSF) layer. Simulation results showed that with combination of DBR and BSF layers and 0.3 µm thick CdTe, the conversion efficiency was increased about 3.2% as compared with a reference cell (with 4 µm thick CdTe layer). It was also shown that the efficiency can be increased up to 6.02% by using a long carrier lifetime in the absorber layer. Under global AM 1.5G conditions, the proposed cell structure had an open-circuit voltage of 1.062 V, a short-circuit current density of 24.64 mA/cm², and a fill factor of 81.3%, corresponding to a total area conversion efficiency of 21.02%.
设计了一种高效的硫化镉/碲化镉太阳能电池，其碲化镉吸收层厚度减小，采用分布式布拉格反射器（DBR）作为光学反射器，碲化锌层作为背表面场（BSF）层。模拟结果表明，结合DBR和BSF层以及0.3μm厚的碲化镉，与参考电池（碲化镉层厚度为4μm）相比，转换效率提高了约3.2%。研究还表明，通过在吸收层中使用长载流子寿命，效率可提高至6.02%。在全球AM 1.5G条件下，所提出的电池结构开路电压为1.062V，短路电流密度为24.64mA/cm²，填充因子为81.3%，对应总面积转换效率为21.02%。
