材料科学
模具(集成电路)
钙钛矿(结构)
光伏系统
制作
卷到卷处理
基质(水族馆)
沉积(地质)
图层(电子)
涂层
结晶
光电子学
纳米技术
电气工程
化学工程
工程类
古生物学
替代医学
生物
病理
沉积物
地质学
海洋学
医学
作者
Juan Pablo Velásquez,Edwin Alexander Ramírez,Alejandra Flórez,Juan Felipe Montoya,Rafael Betancur,Daniel Ramírez,Márcio S. Carvalho,Franklin Jaramillo
标识
DOI:10.1002/adem.202201561
摘要
Large‐scale manufacturing of perovskite solar cells (PSCs) requires the deposition of homogeneous and defect‐free perovskite films on large‐area substrates. Up to now, the knowledge developed for industrial slot‐die processing has not been fully transferred to the perovskite photovoltaic community. Here, the deposition of uniform perovskite layers by slot‐die coating (SDC). Computer fluid dynamics (CFD) simulations, experimental validation, and calculation of industrial uniformity parameters are demonstrated, which enabled to establish processing conditions for SDC of perovskite ink. This approach allowed for obtaining stable cross‐web flow in the slot‐die head resulting in the formation of a stable coating bead yielding uniform perovskite films. The best processing parameters are used for the fabrication of slot‐die‐coated PSCs, which showed a more homogeneous spatial distribution of photovoltaic parameters compared to their spin‐coated counterparts. Better reproducibility observed in device performance is a step forward toward the commercialization of perovskite photovoltaic technology. For the first time, the industrial approach used for the optimization of slot‐die coating is applied for the processing of perovskite inks that have special conditions such as low viscosity and in situ crystallization on the substrate.
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