Fabrication of Regularly Arranged Chalcopyrite Micro Solar Cells via Femtosecond Laser-Induced Forward Transfer for Concentrator Application
Fabrication of Regularly Arranged Chalcopyrite Micro Solar Cells via Femtosecond Laser-Induced Forward Transfer for Concentrator Application
复制标题
DOI：
10.1021/acsaem.7b00028
复制
发表时间：
2018-01-01
影响因子：
6.4
通讯作者：
Schmid, Martina
中科院分区：
文献类型：
--
作者：
Heidmann, Berit;Andree, Stefan;Schmid, Martina
提出了一种基于激光自底向上制备Cu(In,Ga)Se-2 （CIGSe）微型太阳能电池的方法。我们使用飞秒激光诱导正向转移（LIFT）将由铜、铟和镓组成的金属前驱体传输到玻璃基板上的钼背接触层上。随后的硒化作用形成CIGSe吸收体。在太阳能电池中制备了具有一定间距的微吸收器阵列，并在聚光照射下对其进行了表征。该太阳能电池阵列在1个太阳时的转换效率为1.4%，在20倍浓度下的转换效率显著提高68%。这项工作证明了基于硫族化物吸收层直接生长微米级太阳能电池的可能性，从而实现了有效的材料利用。
A laser-based bottom-up technique for the fabrication of Cu(In,Ga)Se-2 (CIGSe) micro solar cells is presented. We use femtosecond laser-induced forward transfer (LIFT) to transport a metallic precursor composed of copper, indium, and gallium onto a molybdenum back contact layer on a glass substrate. A CIGSe absorber forms by subsequent selenization. An array of micro absorbers with defined spacing is fabricated to solar cells and characterized under concentrated light illumination. The solar cell array exhibited a conversion efficiency of 1.4%o at 1 sun as well as a significant efficiency enhancement of 68% rel. under 20-fold concentration. This work demonstrates the possibility of directly grown micrometer-sized solar cells based on chalcogenide absorber layers, enabling effective material usage.