In:
RSC Advances, Royal Society of Chemistry (RSC), Vol. 12, No. 20 ( 2022), p. 12544-12551
Abstract:
Spinel NiCo 2 O 4 is a promising p-type semiconductor for optoelectronic devices; however, it is difficult to prepare uniform and large-area NiCo 2 O 4 films, which hinders its application as a hole transport material for perovskite solar cells (PSCs). In this study, a novel, mild, and low-cost KCl-assisted electrochemical deposition (ECD) approach was developed to directly prepare a uniform NiCo 2 O 4 film on a fluorine-doped tin oxide (FTO) substrate. A uniform NiCo 2 O 4 film prepared through an ECD approach was used as a hole-transport layer (HTL) in inverted PSCs. The resulting NiCo 2 O 4 HTL-based device achieved a power conversion efficiency (PCE) of 19.24% with negligible hysteresis and excellent reproducibility. Additionally, it outperformed a NiO x -based device (PCE = 18.68%). The unsealed devices retained 90.7% of their initial efficiency when subjected to stability measurements for 360 h in an ambient atmosphere. This study shows the great potential of ECD-prepared NiCo 2 O 4 HTLs for large-area PSCs in the future.
Type of Medium:
Online Resource
ISSN:
2046-2069
Language:
English
Publisher:
Royal Society of Chemistry (RSC)
Publication Date:
2022
detail.hit.zdb_id:
2623224-8
