Efficient Light Harvester Layer Prepared by Solid/Mist Interface Reaction for Perovskite Solar Cells

Xia, Xiang; Li, Hongcui; Wu, W.; Li, Yanhua; Fei, Dehou; Chen, Gao; Liu, Xizhe

doi:10.1021/acsami.5b04563

Cited by 26 publications

(23 citation statements)

References 33 publications

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“…[58] Maximum device area reported is 1.1 cm 2 with g = 13%. [53,55,58] Such processing route is inherently non-scalable, despite using a spray coating technique. [53,55,58] Such processing route is inherently non-scalable, despite using a spray coating technique.…”

Section: Spray Coatingmentioning

confidence: 97%

Scalable Deposition Methods for Large‐area Production of Perovskite Thin Films

Swartwout

Hoerantner

Bulović

2019

Energy & Environ Materials

169

179

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The recent steady improvements in the performance of the nascent hybrid perovskite photovoltaic (PV) devices have led to power conversion efficiencies that rival the best-performing established PV technologies. However, to scale these laboratory demonstrations to PV module-scale production will require development of scalable deposition methods for perovskite thin films. Every record result for perovskite PVs so far was achieved via spin coating, a technique that is popular in research laboratories for thin-film coating over relatively small device areas, but not considered to be a method that could be used to scale up the manufacturing of perovskite PVs. Significantly larger thin-film areas are needed for future commercial PV products. Hence, some researchers have focused their efforts on perovskite deposition techniques that can be considered as scalable for mass production and have achieved notable results even on large areas. Here, we present an overview of the solution-based and vapor-based deposition processes; we explain their influence on the molecular crystal growth behavior of perovskite thin films and discuss the morphology as well as other material quality characteristics. By presenting a comprehensive comparison of the deposition techniques and the corresponding performance parameters for different device sizes, we intent to guide the growing research community through the methods that might enable mass production of perovskite solar products.

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Section: Spray Coatingmentioning

confidence: 97%

Scalable Deposition Methods for Large‐area Production of Perovskite Thin Films

Swartwout

Hoerantner

Bulović

2019

Energy & Environ Materials

169

179

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Section: Conversion (Second Step)mentioning

confidence: 99%

Two‐Step Sequential Deposition of Organometal Halide Perovskite for Photovoltaic Application

Chen

2017

Adv Funct Materials

128

102

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simply divided into two kinds, one-step and two-step methods. The one-step method has been adopted in pioneering works. [3,11,21] However, the naturally crystallized perovskite often exhibited an anisotropic growth, leading to low uniformity and poor coverage. [22,23] This phenomenon limited the PV performance, which should be solved by the following anti-solvent strategy. [8,12,24] For the two-step method, PbI 2 layer was first deposited, followed by the conversion to perovskite in MAI solution. [25,26] Since the deposition processes and the control strategy of PbI 2 layer are versatile and flexible, uniform and full coverage PbI 2 layer could be easily obtained, which tends to improve the quality of the perovskite layer.The first successful work on the two-step method for PSCs was reported by Burschka et al. in 2013, which obtained a record PCE of 15% at that time. [26] Soon after, tremendous following works have been conducted on the two-step method due to its high operability and good performance reproducibility. Most importantly, the great progress on the reaction/ growth mechanism of the two-step method resulted in more modified processes, which well improved perovskite quality and enhanced device performance. Typically, by combining the second spin-coating step with the optimization on MAI concentration, perovskite grain size was optimized to absorb most of visible light with the minimum recombination loss, which promoted the PCE to over 16%. [7] Then, a novel interdiffusion strategy based on two spin-coating step process further improved the perovskite quality and promoted the PCE to about 19%. [27] Recently, by applying a new Pb-I precursor of PbI 2 (DMSO), high-quality FAPbI 3 /MAPbBr 3 perovskite was obtained through intramolecular exchange between FA/MA with DMSO, which boosted the PCE to over 20%. [4] Therefore, the two-step method has been well proved to be an effective approach to synthesize high-quality perovskite for high-performance PSCs.Herein, we made a thorough review on the recent progresses on the two-step deposition of perovskite for the application in PSCs. Firstly, we will review the reaction principle at the second step, converting lead-based precursor to perovskite. Then, the researches on the deposition technique, structure, and composition of lead-based precursors will be collected and discussed, followed by a summary on the conversion technique, conversion atmosphere, and growth of large crystals at the second step. Finally, the issues on the two-step method will be stated, accompanied with proposed solutions.Organometal halide perovskite materials have become a superstar in the photovoltaic (PV) field because of their advantageous properties, which boost the power conversion efficiency (PCE) of perovskite solar cells (PSCs) from about 3.8% to above 22% in just seven years. Most importantly, such promising achievement is mainly based on its low-cost and solution-processed fabrication technique. One of the most promising and famous approaches to fabricating perovskite is a two-step s...

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“…In the two‐step process, the spray process has been mainly used instead of the dipping process for reacting MAI with PbI 2 . Therefore, the spray deposition condition of the MAI solution is a crucial factor determining the final film morphology . Liu and co‐workers controlled the sprayed amount of MAI solution and reaction temperature to obtain a uniform perovskite film .…”

Section: Spray Coatingmentioning

confidence: 99%

“…Therefore, the spray deposition condition of the MAI solution is a crucial factor determining the final film morphology . Liu and co‐workers controlled the sprayed amount of MAI solution and reaction temperature to obtain a uniform perovskite film . Figure a shows a schematic of perovskite film formation via the spray process.…”

Section: Spray Coatingmentioning

confidence: 99%

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Progress in Scalable Coating and Roll‐to‐Roll Compatible Printing Processes of Perovskite Solar Cells toward Realization of Commercialization

Jung

Hwang

Heo

et al. 2018

Advanced Optical Materials

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Organic–inorganic halide perovskite solar cells (PeSCs) have attracted worldwide attention due to their excellent photovoltaic properties, such as their proper bandgap, strong light absorption, long exciton diffusion length, and easy device fabrication with solution processes, suggesting a great potential for low‐cost, high‐performance solar cells. After a power conversion efficiency (PCE) of 3.8% achieved in 2009, numerous efforts have been made to create PeSCs with high PCEs over 20% in small‐area cells. The next challenge is transition from the lab‐scale spin coating to a large‐scale coating/printing, which will preferably involve the cost‐competitive roll‐to‐roll manufacturing and vacuum‐free full‐printing process. This review provides a progress report on studies related to the scalable deposition methods for PeSCs, such as slot‐die coating, blade coating, spray coating, and various other methods, and to their processing strategies for morphology control in perovskite film formation and discusses the challenges and potential of commercialization of PeSCs in the future.

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Efficient Light Harvester Layer Prepared by Solid/Mist Interface Reaction for Perovskite Solar Cells

Cited by 26 publications

References 33 publications

Scalable Deposition Methods for Large‐area Production of Perovskite Thin Films

Scalable Deposition Methods for Large‐area Production of Perovskite Thin Films

Two‐Step Sequential Deposition of Organometal Halide Perovskite for Photovoltaic Application

Progress in Scalable Coating and Roll‐to‐Roll Compatible Printing Processes of Perovskite Solar Cells toward Realization of Commercialization

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