Scalable solution coating of the absorber for perovskite solar cells

Defect passivation through electrostatic interaction for high performance flexible perovskite solar cells

“…Organometal halide perovskites (OHPs) have good solubility due to their ionic nature, which enables low-temperature solution processes for perovskite solar cells (PSCs) manufacturing, including screen printing, blade coating, slot-die coating [1][2][3][4] . These manufacturing methods are well compatible with roll-to-roll (R2R) large-scale manufacturing processes to fabricate lightweight flexible PSCs, which can significantly reduce the manufacturing cost and show strong potential for application in wearable electronics, portable charger, flying objects, etc.…”

Reducing Defects in Organic-Lead Halide Perovskite Film by Delayed Thermal Annealing Combined with KI/I2 for Efficient Perovskite Solar Cells

“…In this study, GBL and DMSO were mixed in a volume ratio of 1:1 to form a perovskite precursor solution. Due to the strong surface tension and viscosity possessed by DMSO, a surface tension gradient drop occurs during perovskite film formation [ 23 , 24 ], leading to an uneven crystallization rate and excessive crystal grains. The speed in the vertical crystallization direction is greater than that in the horizontal crystallization direction, resulting in poor uniformity of the film.…”

“…In a similar process, the iodine (I 2, <99.8%, Sigma-Aldrich, Burlington, VT, USA)) was added to perovskite precursors in various molar ratios (1.25, 2, 3, or 6 mM), respectively. The perovskite precursor was spin-coated on top of the m-TiO 2 /c-TiO 2 /FTO glass substrate with an anti-solvent washing enhanced nucleation process [ 20 , 21 , 23 , 24 ]. The perovskite films were allowed to stand for various amounts of time (0, 30, 60, 90, and 120 min) at room temperature in glass culture dishes before thermal baking at 100 °C for 10 min; the time before baking is called “delayed thermal annealing time”.…”

Toward Perovskite Solar Cell Commercialization: A Perspective and Research Roadmap Based on Interfacial Engineering

“…[8,[45][46][47][48][49][50][51] Low temperature solution processing routes provide enormous flexibility and enable use of low cost printing approaches (spray coating, inkjet printing, screen printing, blade coating, and slot die roll-to-roll (R2R) coating) for manufacturing PVKSCs at scale with ease. [4,7,52,53] Performance: The exceptional material attributes of hybrid perovskites translate to numerous functional device possibilities with commendable performance metrics. Notable applications include photovoltaics, [8,13] photonic sources (light-emitting diodes, lasers), [34,54,55] photodetectors, [56] transistors, [14] batteries, [44] piezoelectrics, [57,58] synapse and memory devices.…”