叠层太阳电池中不同基质硅量子点的特性研究

Study on the properties of silicon quantum dot on different substrates in tandem solar cells

叠层太阳电池的多能带结构设计可以有效提高太阳电池的转换效率,但是这种电池在实际制备过程中常会遇到低效率、高成本等问题。以提高效率为目的,在叠层太阳电池中引入具有量子效应的硅量子点是目前新型太阳电池研究的一大热点。文章对不同基质中硅量子点的能带模型进行了理论分析,介绍了硅量子点在几种不同基质中的形成方法及其相关性质的最新研究结果,并对比研究了SiO2、Si3N4和SiC用作硅量子点生长基质的优势与不足。

a multi--band gap approach of tandem photovoltaic cell can increase efficiency in theory, but this cell usually involved low efficiency and high cost etc. To further improve the conversion efficiency of cell, introducing silicon quantum with quantum effects to tandem solar cells has become a new research hotspot. This paper will analyze the band model in different dielectric matrices, introduce several different methods and related properties of silicon quantum formed in different dielectric matrices~ and compare the strengths and weaknesses of silicon quantum dot formed in SiO2, Si3N4and SiC mixture dielectric matrices.