Slimani Moulay Ahmed, Wadhwa Arjun, Gerlein Luis Felipe, Benavides-Guerrero Jaime A, Taherian Mohamad Hassan, Izquierdo Ricardo, Cloutier Sylvain G
Département de Génie Électrique, École de Technologie Supérieure, 1100 Rue Notre-Dame Ouest, Montréal, QC H3C 1K3, Canada.
Département de Génie Mécanique, Université du Québec à Trois-Rivières, 3351 Boul. des Forges, Trois-Rivières, QC G9A 5H7, Canada.
Nanomaterials (Basel). 2024 Dec 9;14(23):1975. doi: 10.3390/nano14231975.
The most common method of processing metal oxide and perovskite thin films in the laboratory is thermal annealing (TA), which is a constraint for the commercialization of large-scale perovskite solar cells. Here, we present a photonic curing (PC) process to produce fully photonically annealed perovskite cells-a fast process with well-controlled, short light pulses-to develop perovskite photovoltaic devices with high efficiency. We also demonstrate how to use the parameters of the photonic annealing system to control the optical, electrical, morphological, and structural properties of perovskite layers for photovoltaic device applications. The effect of PC treatment on the microstructure, granularity, and electronic properties was studied by scanning electron microscopy (SEM), photoluminescence (PL), and transient photocurrent (TPC). The degree of conversion of the perovskite precursor and its influence on the electronic structure have been identified. SnO2 and perovskite films were treated with a single pulse and produced PCE comparable to control samples treated by TA.
在实验室中处理金属氧化物和钙钛矿薄膜最常用的方法是热退火（TA），这对大规模钙钛矿太阳能电池的商业化来说是一个限制因素。在此，我们展示了一种光子固化（PC）工艺，用于制造完全通过光子退火的钙钛矿电池——这是一个快速的工艺，采用可控的短光脉冲——以开发高效的钙钛矿光伏器件。我们还展示了如何利用光子退火系统的参数来控制用于光伏器件应用的钙钛矿层的光学、电学、形态和结构特性。通过扫描电子显微镜（SEM）、光致发光（PL）和瞬态光电流（TPC）研究了PC处理对微观结构、粒度和电子特性的影响。已经确定了钙钛矿前驱体的转化程度及其对电子结构的影响。用单脉冲处理SnO₂和钙钛矿薄膜，其产生的光电转换效率（PCE）与通过TA处理的对照样品相当。
