Exploration of polymer-assisted crystallization kinetics in CsPbBr3 all-inorganic solar cell

Ren, Yingke; Yuan, Hongchun; Zhang, Ning; Arain, Zulqarnain; Mateen, Muhammad; Sun, Yingjie; Shi, Pengju; Cai, Molang; Dai, Songyuan

doi:10.1016/j.cej.2019.123805

Cited by 47 publications

(42 citation statements)

References 39 publications

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“…The PL intensity was mapped to further investigate the impact of EACl on the optical dynamics of the thin film as given in Fig. 4c, d [41]. PL measurements provide direct insight into the non-radiative excitons' decay performance.…”

Section: Resultsmentioning

confidence: 99%

Boosting optoelectronic performance of MAPbI3 perovskite solar cells via ethylammonium chloride additive engineering

et al. 2020

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The quality of the perovskite light absorption layer plays a dynamic role in the photovoltaic properties of solar cells. The existing methods to prepare methylammonium lead iodide (MAPbI 3 ) films render substantial structural defect density, particularly at the grain boundaries and film surface, constituting a challenge that hinders the further optoelectronic enhancement of perovskite solar cells. Herein, a unique approach was introduced: using a simple ethylammonium chloride (EACl) additive in perovskite precursor mixture to produce high-quality MAPbI 3 thin films. The results indicated that EACl could encourage perovskite crystal growth without experiencing the intermediate phase formation and would evaporate from the perovskite after annealing. Additionally, a gradient perovskite structure was achieved using this technique, which impressively enhanced the performance of the perovskite films. A high power conversion efficiency (PCE) of 20.03% was achieved under the optimal amount of EACl, and the resultant efficient device could retain over 89% of the original PCE after aging for 1000 h at room temperature. This novel technique leads to a facile fabrication of highquality and less-defect perovskite thin films for competent and stable devices.

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Section: Resultsmentioning

confidence: 99%

Boosting optoelectronic performance of MAPbI3 perovskite solar cells via ethylammonium chloride additive engineering

et al. 2020

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“…It is worth noting that the champion PCE is improved by 45.4% in comparison with the 6.69% efficiency of the control PSC in this study and is much larger than the reported value in other works. [ 42–48 ] On the basis of the equation:

{italicE}_{loss} = {italicE}_{normalg} - {italiceV}_{OC}

, where E loss represents the energy loss in the device and E g stands for the optical bandgap of related perovskite film. It is obviously that Cl − ion doping widens the bandgap because of the electron density redistribution and reduces the E loss due to the enhancement of energy‐level alignment and the repression of charge recombination, leading to a higher V OC .…”

Section: Resultsmentioning

confidence: 99%

Compositional Engineering of Chloride Ion‐Doped CsPbBr₃ Halides for Highly Efficient and Stable All‐Inorganic Perovskite Solar Cells

Gong

et al. 2020

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Carbon‐based CsPbBr3 perovskite solar cells (PSCs) without hole‐transporting layers (HTLs) have aroused extensive attention due to their low manufacturing cost and prominent ambient stability. However, the defects of perovskite film and the poor charge extraction within PSCs result in severe charge recombination, which restricts the further enhancement of device efficiency. In view of this critical point, a compositional engineering of CsPbBr3 perovskite via doping with Cl− ions is presented herein to decrease the trap states and enhance the charge extraction. It is revealed that the doping of Cl− ions not only enlarges the grain size and thereby reduces the trap‐state density, but also optimizes the energy‐level alignment and improves the hole mobility of the perovskite film, leading to an evidently suppressed charge recombination and improved charge extraction and transportation. As a result, a champion power conversion efficiency (PCE) of 9.73% is achieved for carbon‐based HTL‐free CsPbBr2.98Cl0.02 PSC, yielding a marked enhancement in comparison with 6.69% efficiency for the control. Meanwhile, the thermal and moisture stabilities of unencapsulated CsPbBr2.98Cl0.02 PSC are improved, maintaining 93% and 95% of the initial PCE after expose to air atmosphere with 80% relative humidity (RH) and at 80 °C over 60 days, respectively.

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“…Poly(sodium 4-styrenesulfonate) ZnO [28] Poly(Citric Acid-co-Glycerol) CaCO 3 [99] Itaconic acid-2-acrylamido-2-methylpropanesulfonic acid allyl polyoxyethylene ether copolymer CaCO 3 [100] Organic polymer Struvit [101] Regiorandom pentacene-bithiophene, poly(3-hexylthiophene) 6,13-bis(triisopropylsilylethynyl)pentacene [102] Poly(ethylene glycol) Perovskite [104] Poly(3-hexylthiophene), poly(methyl methacrylate) Bis(triisopropylsilylethynyl) pentacene [108] Maleic acid and sodium ρ-styrenesulfonate copolymer CaSO 4 •2H 2 O [109] Poly(N-vinyl pyrrolidone) copolymers H 2 O [113] Composite membranes Glucose Isomerase [117] In conclusion, the authors would like to emphasize that the branch of science tackling complicated interactions between crystallizing solutions and polymer additives becomes currently more and more important from both theoretical and practical points of view and therefore is a promising area for further research.…”

Section: Crystal Surface Screening/nucleation Inhibitionmentioning

confidence: 99%

Application of Polymers as a Tool in Crystallization—A Review

et al. 2021

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The application of polymers as a tool in the crystallization process is gaining more and more interest among the scientific community. According to Web of Science statistics the number of papers dealing with “Polymer induced crystallization” increased from 2 in 1990 to 436 in 2020, and for “Polymer controlled crystallization”—from 4 in 1990 to 344 in 2020. This is clear evidence that both topics are vivid, attractive and intensively investigated nowadays. Efficient control of crystallization and crystal properties still represents a bottleneck in the manufacturing of crystalline materials ranging from pigments, antiscalants, nanoporous materials and pharmaceuticals to semiconductor particles. However, a rapid development in precise and reliable measuring methods and techniques would enable one to better describe phenomena involved, to formulate theoretical models, and probably most importantly, to develop practical indications for how to appropriately lead many important processes in the industry. It is clearly visible at the first glance through a number of representative papers in the area, that many of them are preoccupied with the testing and production of pharmaceuticals, while the rest are addressed to new crystalline materials, renewable energy, water and wastewater technology and other branches of industry where the crystallization process takes place. In this work, authors gathered and briefly discuss over 100 papers, published in leading scientific periodicals, devoted to the influence of polymers on crystallizing solutions.

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Exploration of polymer-assisted crystallization kinetics in CsPbBr3 all-inorganic solar cell

Cited by 47 publications

References 39 publications

Boosting optoelectronic performance of MAPbI3 perovskite solar cells via ethylammonium chloride additive engineering

Boosting optoelectronic performance of MAPbI3 perovskite solar cells via ethylammonium chloride additive engineering

Compositional Engineering of Chloride Ion‐Doped CsPbBr₃ Halides for Highly Efficient and Stable All‐Inorganic Perovskite Solar Cells

Application of Polymers as a Tool in Crystallization—A Review

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Exploration of polymer-assisted crystallization kinetics in CsPbBr3 all-inorganic solar cell

Cited by 47 publications

References 39 publications

Boosting optoelectronic performance of MAPbI3 perovskite solar cells via ethylammonium chloride additive engineering

Boosting optoelectronic performance of MAPbI3 perovskite solar cells via ethylammonium chloride additive engineering

Compositional Engineering of Chloride Ion‐Doped CsPbBr3 Halides for Highly Efficient and Stable All‐Inorganic Perovskite Solar Cells

Application of Polymers as a Tool in Crystallization—A Review

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Compositional Engineering of Chloride Ion‐Doped CsPbBr₃ Halides for Highly Efficient and Stable All‐Inorganic Perovskite Solar Cells