Atomic Layer Grown Zinc-Tin Oxide as an Alternative Buffer Layer for Cu₂ZnSnS₄-Based Thin Film Solar Cells: Influence of Absorber Surface Treatment on Buffer Layer Growth.

ABSTRACT: Zn_1-x Sn _x O _y (ZTO) deposited by atomic layer deposition has shown promising results as a buffer layer material for kesterite Cu₂ZnSnS₄ (CZTS) thin film solar cells. Increased performance was observed when a ZTO buffer layer was used as compared to the traditional CdS buffer, and the performance was further increased after an air annealing treatment of the absorber. In this work, we study how CZTS absorber surface treatments may influence the chemical and electronic properties at the ZTO/CZTS interface and the reactions that may occur at the absorber surface prior to atomic layer deposition of the buffer layer. For this, we have used a combination of microscopy and synchrotron-based spectroscopies with variable in

SUBMITTER: Martin NM 

PROVIDER: S-EPMC9710524 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature