Inkjet manipulated homogeneous large size perovskite grains for efficient and large-area perovskite solar cells

Li, Pengwei; Liang, Chao; Bao, Bin; Li, Yanan; Hu, Xiaotian; Wang, Yang; Zhang, Yiqiang; Li, Fengyu; Shao, Guosheng; Song, Yanlin

doi:10.1016/j.nanoen.2018.01.049

Cited by 171 publications

(174 citation statements)

References 58 publications

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“…In Figure 6b, this progress is shown for the coating and printing techniques discussed in this work. : [30,31,33,51,59,61,62,64,72,73,87,92,93,95,99,104,115,118,121,123,125,132,136]). From an application perspective the PCE should be reported with respect to the aperture area, but in several early studies the PCE is provided with regard to the active area instead.…”

Section: State-of-the-art Resultsmentioning

confidence: 99%

“…[92,93] In 2018, first perovskite PV modules with an area of >2 cm 2 were reported. [92,93] In 2018, first perovskite PV modules with an area of >2 cm 2 were reported.…”

Section: Inkjet Printingmentioning

confidence: 99%

“…[93] Recently, Schlisske et al demonstrated the flexibility of design that inkjet printing allows by printing arbitrary-shaped PSCs and also printing arbitrarily shaped luminescent down-shifting layers to realize different solar cell colors while maintaining a PCE of 9.5% for such devices. [93] Recently, Schlisske et al demonstrated the flexibility of design that inkjet printing allows by printing arbitrary-shaped PSCs and also printing arbitrarily shaped luminescent down-shifting layers to realize different solar cell colors while maintaining a PCE of 9.5% for such devices.…”

Section: Inkjet Printingmentioning

confidence: 99%

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Coated and Printed Perovskites for Photovoltaic Applications

et al. 2019

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optoelectronic devices, a novel lowcost and highly efficient photovoltaic (PV) material emerged. Only 10 years after the first reported perovskite solar cells (PSCs), power conversion efficiencies (PCEs) above 23% were certified, exceeding those of much longer established thin-film PV technologies, including organic photovoltaics (OPV) and inorganic thin-film PV based on copper indium gallium selenide (CIGS) or cadmium telluride (CdTe). [1] The material class of hybrid organic-inorganic perovskites combines excellent optoelectronic properties, such as long diffusion lengths [2] and short absorption lengths, [3] with the ease of solution processing, low energy payback times, and low-cost precursor materials. [4] Moreover, the optoelectronic properties and the material stability can be engineered by varying the constituents in the perovskite crystal structure ABX 3 . For example, the bandgap (E G ) can be tuned by changing the stoichiometric ratio of Br and I at the halogen anion site X. [5][6][7] In order to improve the stability of hybrid organic-inorganic perovskites, compositional engineering of the cation site A was demonstrated to be successful via combining methylammonium (CH 3 NH 3 + or MA + ), formamidinium (CH 5 N 2 + or FA + ), Cs + , and Rb + ions in the so-called multi-cation perovskites. [8][9][10][11] Three key challenges hinder today the economical breakthrough of PSCs:Stability: First, the instability of PSCs against moisture, oxygen, light, and temperature limits the lifetime of PSCs to a fraction of the warranty lifetime (often >25 years) of the market dominating crystalline silicon (c-Si) PV. [12] Very respectable progress has been made over recent years to enhance the stability of PSCs by demonstrating stability over 1000 h, but significant further advances in terms of stability are needed to lift the technology to a level where it is ready to compete with, or be a bolt-on tandem companion to the current PV heavyweight of c-Si. A number of reviews cover recent developments on the topic of stability. [13][14][15][16][17] Toxicity: Second, highly efficient PSCs still contain lead, the toxicity of which hampers the acceptance of the technology and could conflict with legislative barriers. [18] Other recent reviews present progress with respect to this challenge. [19,20] Upscaling: Third, the upscaling of perovskite PV devices to commercial PV module sizes (>1 m 2 ) must be achieved. To date, the vast majority of research and development of PSCs is still Hybrid organic-inorganic metal halide perovskite semiconductors provide opportunities and challenges for the fabrication of low-cost thin-film photovoltaic devices. The opportunities are clear: the power conversion efficiency (PCE) of small-area perovskite photovoltaics has surpassed many established thin-film technologies. However, the large-scale solution-based deposition of perovskite layers introduces challenges. To form perovskite layers, precursor solutions are coated or printed and these must then be crystallized into the perovskite structur...

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Section: State-of-the-art Resultsmentioning

confidence: 99%

“…[92,93] In 2018, first perovskite PV modules with an area of >2 cm 2 were reported. [92,93] In 2018, first perovskite PV modules with an area of >2 cm 2 were reported.…”

Section: Inkjet Printingmentioning

confidence: 99%

Section: Inkjet Printingmentioning

confidence: 99%

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Coated and Printed Perovskites for Photovoltaic Applications

et al. 2019

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“…[1][2][3][4][5][6] Nevertheless, a better understanding of what influences their crystalline structure is needed in order to achieve phase purity, manage defects, and ultimately achieve optimal device performances.The dramatic gain in solar cell device efficiency since 2012 is only one of the features making perovskites stand out among other photovoltaic materials. [1][2][3][4][5][6] Nevertheless, a better understanding of what influences their crystalline structure is needed in order to achieve phase purity, manage defects, and ultimately achieve optimal device performances.…”

mentioning

confidence: 99%

Influence of Grain Size on Phase Transitions in Halide Perovskite Films

Stavrakas

Zelewski

Frohna

et al. 2019

Advanced Energy Materials

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toward the optimization of perovskite thin film growth from simple precursors have improved the efficiency and stability of devices to a high quality standard and low cost, placing them on the verge of commercialization. [1][2][3][4][5][6] Nevertheless, a better understanding of what influences their crystalline structure is needed in order to achieve phase purity, manage defects, and ultimately achieve optimal device performances.The dramatic gain in solar cell device efficiency since 2012 is only one of the features making perovskites stand out among other photovoltaic materials. With a Young's modulus around 20 GPa, [7][8][9][10] perovskites are mechanically softer than most other PV materials such as silicon (>160 GPa), [11,12] GaAs (≈85 GPa), [13] CIGS (≈80 GPa), [14,15] and CdTe (≈40 GPa), [16,17] and their structure has been reported to be prone to light-induced, electric-fieldinduced, and temperature-dependent rearrangements. [18][19][20][21][22][23] The workhorse system studied to date, methylammonium lead iodide (MAPbI 3 ), is in a tetragonal phase (TP) at room temperature, but undergoes a transition to a cubic phase at high temperature (≈330 K) and an orthorhombic phase (OP) at low temperature (≈150 K). Recently, we and others [24][25][26] have reported that the structural rearrangement from TP to OP causes a distinct hysteretic change in optical and transport properties as well as device behavior between heating and cooling cycles. This hysteresis could be reduced by scraping the film from the substrate and instead measuring randomly oriented powder samples. [24] These results provide hints that the thermal stability [27] and phase transition can be influenced by the local environment of the film due to interactions between the material and substrate as well as within the bulk film itself. Unless understood and mitigated, such hysteretic changes at low temperature may limit the use of perovskite solar cells in some specific applications, for example, aerospace applications, which require operation at extremely low temperatures [28] (<200 K).State-of-the-art perovskite films are polycrystalline, which leads to microscale inhomogeneities in a number of properties such as morphology and defect distributions [29][30][31][32] and, in turn, to local variations in the electronic environment for charge carriers. Generally, increasing grain sizes in MAPbI 3 films has resulted in improvements in critical performance parameters, such as an increase in carrier mobility and charge collection efficiency, [33,34] along with smaller bandgaps, longer lifetimes, Grain size in polycrystalline halide perovskite films is known to have an impact on the optoelectronic properties of the films, but its influence on their soft structural properties and phase transitions is unclear. Here, temperature-dependent X-ray diffraction, absorption, and macro-and microphotoluminescence measurements are used to investigate the tetragonal to orthorhombic phase transition in thin methylammonium lead iodide films with grain sizes ranging fr...

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“…This may be due to similar mechanisms and geometry of thin-film formation. [64,65] A comparison of film morphology can be seen in Figure 6. [60][61][62][63] Similar to spray coating, two-step inkjet processes exhibit better morphology, with more uniform and larger grains.…”

Section: Inkjet Printingmentioning

confidence: 99%

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

Swartwout

Hoerantner

Bulović

2019

Energy & Environ Materials

195

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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Inkjet manipulated homogeneous large size perovskite grains for efficient and large-area perovskite solar cells

Cited by 171 publications

References 58 publications

Coated and Printed Perovskites for Photovoltaic Applications

Coated and Printed Perovskites for Photovoltaic Applications

Influence of Grain Size on Phase Transitions in Halide Perovskite Films

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

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