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  • Engineering Inorganic Perovskite Films by X Values of DMAPbI x toward Large Area Photovoltaic Devices by Slot‐Die Coating

This content will become publicly available on August 1, 2026

Title: Engineering Inorganic Perovskite Films by X Values of DMAPbI x toward Large Area Photovoltaic Devices by Slot‐Die Coating
Abstract Dimethylammonium lead iodide (DMAPbIx) has the potential to address the phase stability issue of inorganic perovskite solar cells (PSCs). In this study, the crystallinity, phase structure, defect states, and crystal growth habits of DMAPbIxare controlled by adjusting thexvalue during synthesis, where N,N‐dimethylacetamide (DMAC) is used as the solvent to regulate perovskite film growth. Furthermore, large‐area CsPbI2.85Br0.15perovskite films with preferred oriented growth are achieved using the optimizedxvalue in DMAPbIxthrough the slot‐die coating method. The inorganic PSCs, with a n‐i‐p structure and the active area of 0.04 cm2, achieve a champion power conversion efficiency (PCE) of 19.82%, with an open‐circuit voltage (Voc) of 1.16 V based on perovskite films formed by slot‐die coating. This work provides important insights into the DMAPbIx‐based method for fabricating high‐quality inorganic perovskite films, and paves the way for large‐area inorganic PSCs fabrication for practical applications.  more » « less
Award ID(s):
2305112 2242467 2326788 2423854
PAR ID:
10640855
Author(s) / Creator(s):
 ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  ;  
Publisher / Repository:
Wiley -VCH
Date Published:
Journal Name:
Small
Volume:
21
Issue:
33
ISSN:
1613-6810
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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