Title:Research Progress of Alkali Doped Cu(In,Ga)Se2 Thin Film Solar Cells
Volume: 1
Issue: 6
Author(s): Zhaoyang Li, Jiwen Li, Jinkun Lei, Shizhong Wei*Nannan Wang
Affiliation:
- Material Science & Engineering School, Henan University of Science & Technology, Luoyang,China
Keywords:
CIGS, alkali elements, post-deposition treatment, CIGSe absorber layer, thin film cell, CIGS solar cell.
Abstract: Cu(In,Ga)Se2 (CIGS) thin film solar cell has the advantages of high efficiency, good
working stability and low manufacturing cost, which is the most promising thin film solar cell.
Currently, the efficiency of CIGS thin film cell has reached 23.35% by doping alkali elements.
This review summarized the current status of doping alkali elements on flexible CIGS thin film solar
cells with a focus on recent advancements intended for higher efficiency and novel applications.
First, the structure of CIGS thin film cell was introduced. According to the structural characteristics
of CIGS cells, different doping methods of alkali metals were summarized. Then, the recent developments
and trends of research in doping methods of alkali elements within the last years were reviewed,
and the effect of different alkali elements on CIGS efficiency was emphasized. Finally, the
challenges and opportunities of alkali doping CIGS solar cell were prospected.
