Sequential slot-die coating of perovskite solar cell modules under ambient conditions with precise phase-transition control
Journal
Chemical Engineering Journal
Journal Volume
517
Start Page
164194
ISSN
1385-8947
Date Issued
2025-08-01
Author(s)
Li, Chia-Feng
Huang, Shih-Han
Chen, You-Ren
Cha, Hou-Chin
Chung, Ssu-Yung
Hsiao, Yu-Hung
Huang, Yu-Ching
Abstract
The commercialization of perovskite solar modules (PSMs) requires scalable fabrication processes that enable uniform, large-area film formation with precise control over perovskite crystallization. In this study, an air-processable perovskite fabrication process using sequential slot-die coating was developed, enabling scalable and uniform film formation. This process integrates near-infrared (NIR) heating to facilitate rapid solvent removal and minimize prolonged exposure to ambient air, while incorporating methylammonium thiocyanate (MASCN) to promote controlled crystallization, reduce trap density, and improve optoelectronic properties of perovskite crystals. As a result, large-area perovskite films with enhanced grain growth, fewer defects, and improved phase stability were obtained. Using this approach, slot-die-coated perovskite solar cells (PSCs) achieved a maximum power conversion efficiency (PCE) of 17.37 %, while a 10 × 10 cm2 PSM reached a PCE of 11.08 %. These findings demonstrate an air-processable, scalable fabrication strategy for high-performance and reproducible perovskite solar cells and modules, addressing key challenges in large-area film fabrication and improving the manufacturability of perovskite photovoltaics.
Subjects
Ambient air
Module
NIR heating
Phase transition
Sequential deposition
Slot-die
SDGs
Publisher
Elsevier BV
Type
journal article