Cu₂ZnSn(S,Se)₄ (CZTS) thin film solar cells have reached efficiencies of up to 12.6% and current research is focused on understanding reasons for device limitations. At Uppsala University, a CZTS synthesis route based on compound sputtering and annealing in elemental vapors is used. Variation of chemical composition and annealing conditions is used as a tool to try to understand defect-related material- and device properties. Front and back contacts are also studied with focus on energy band matching at the hetero-interface using atomic layer deposition buffer layers and chemical stability of the back contact. In this review, we discuss recent work from our group, with reference to related work in the literature and with regards to areas for future work.

Cu ₂ ZnSn（S，Se）₄（CZTS）薄膜太阳能电池的效率已高达12.6％，目前的研究集中在理解器件局限性的原因。在乌普萨拉大学，使用了基于化合物溅射和元素蒸汽退火的CZTS合成路线。化学成分和退火条件的变化被用作试图了解与缺陷相关的材料和器件性能的工具。还研究了正面和背面接触，重点是使用原子层沉积缓冲层在异质界面处的能带匹配以及背面接触的化学稳定性。在这篇评论中，我们讨论了小组的最新工作，并参考了文献中的相关工作以及未来工作领域。