Metal Halide Perovskite for next-generation optoelectronics: progresses and prospects

eLight, Journal Year: 2023, Volume and Issue: 3(1)

Published: Jan. 4, 2023

Abstract Metal halide perovskites (MHPs), emerging as innovative and promising semiconductor materials with prominent optoelectronic properties, has been pioneering a new era of light management (ranging from emission, absorption, modulation, to transmission) for next-generation technology. Notably, the exploration fundamental characteristics MHPs their devices is main research theme during past decade, while in next it will be primarily critical promote implantation optoelectronics. In this review, we first retrospect historical milestones devices. Thereafter, introduce origin unique features MHPs, based on which highlight tunability these via regulating phase, dimensionality, composition, geometry MHPs. Then, show that owing convenient property control various target performance can designed. At last, emphasize revolutionary applications MHPs-based existing systems. This review demonstrates key role played development modern optoelectronics, expected inspire novel directions widespread

Language: Английский

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Smooth and Compact FASnI₃ Films for Lead-Free Perovskite Solar Cells with over 14% Efficiency

ACS Energy Letters, Journal Year: 2022, Volume and Issue: 7(6), P. 2079 - 2083

Published: May 24, 2022

Currently, the highest-performing lead-free perovskite solar cells utilize element tin. Tin halide perovskites, typically FASnI3, resemble their lead-based counterparts in optoelectronic properties but possess dissimilar crystallization kinetics. To tackle usually poor film quality, we introduced trimethylthiourea (3T) to spin coating of FASnI3 films. This bifunctional ligand greatly improved morphology and texture films by spreading joining individual crystal grains. Accordingly, charge-carrier lifetime 3T-treated reached a record high 123 ns, open-circuit voltage at 0.92 V was only 0.2 short theoretical limit, both approaching those lead perovskites. The certified power conversion efficiency 14.0% stability against humid air are also among best for cells. Possible reasons efficacy 3T through H-bonding discussed. These findings emphasize deposition control tin perovskites give direction future developments.

Language: Английский

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Additive treatment yields high-performance lead-free perovskite light-emitting diodes

Nature Photonics, Journal Year: 2023, Volume and Issue: 17(9), P. 755 - 760

Published: June 19, 2023

Language: Английский

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Halide Perovskite Crystallization Processes and Methods in Nanocrystals, Single Crystals, and Thin Films

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(52)

Published: April 6, 2022

Abstract Halide perovskite semiconductors with extraordinary optoelectronic properties have been fascinatedly studied. nanocrystals, single crystals, and thin films prepared for various fields, such as light emission, detection, harvesting. High‐performance devices rely on high crystal quality determined by the nucleation growth process. Here, fundamental understanding of crystallization process driven supersaturation solution is discussed methods halide crystals are summarized. Supersaturation determines proportion average Gibbs free energy changes surface volume molecular units involved in spontaneous aggregation, which could be stable induce homogeneous only when exceeds a required minimum critical concentration ( C min ). Crystal heterogeneous thermodynamically easier than due to existent surfaces. Nanocrystals mainly via nucleation‐dominated rapidly increasing over , growth‐dominated keeping between solubility while compromising processes ensure compactness grain sizes. Typical strategies preparing these three forms perovskites also reviewed.

Language: Английский

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High-performance metal halide perovskite transistors

Nature Electronics, Journal Year: 2023, Volume and Issue: 6(8), P. 559 - 571

Published: Aug. 7, 2023

Language: Английский

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Narrow Bandgap Metal Halide Perovskites for All-Perovskite Tandem Photovoltaics

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(7), P. 4079 - 4123

Published: March 25, 2024

All-perovskite tandem solar cells are attracting considerable interest in photovoltaics research, owing to their potential surpass the theoretical efficiency limit of single-junction cells, a cost-effective sustainable manner. Thanks bandgap-bowing effect, mixed tin-lead (Sn-Pb) perovskites possess close ideal narrow bandgap for constructing matched with wide-bandgap neat lead-based counterparts. The performance all-perovskite tandems, however, has yet reach its potential. One main obstacles that need be overcome is the─oftentimes─low quality Sn-Pb perovskite films, largely caused by facile oxidation Sn(II) Sn(IV), as well difficult-to-control film crystallization dynamics. Additional detrimental imperfections introduced thin film, particularly at vulnerable surfaces, including top and bottom interfaces grain boundaries. Due these issues, resultant device distinctly far lower than theoretically achievable maximum efficiency. Robust modifications improvements surfaces films therefore critical advancement field. This Review describes origins covers efforts made so toward reaching better understanding perovskites, particular respect surface improved stability cells. In addition, we also outline important issues integrating subcells achieving reliable efficient double- multi-junction tandems. Future work should focus on characterization visualization specific defects, tracking evolution under different external stimuli, guiding turn processing stable cell devices.

Language: Английский

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A Bifunctional Carbazide Additive For Durable CsSnI₃ Perovskite Solar Cells

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(26)

Published: March 30, 2023

Inorganic CsSnI3 with low toxicity and a narrow bandgap is promising photovoltaic material. However, the performance of perovskite solar cells (PSCs) much lower than that Pb-based hybrid Sn-based (e.g., CsPbX3 CH(NH2 )2 SnX3 ) PSCs, which may be attributed to its poor film-forming property deep traps induced by Sn4+ . Here, bifunctional additive carbazide (CBZ) adapted deposit pinhole-free film remove via two-step annealing. The lone electrons NH2 CO units in CBZ can coordinate Sn2+ form dense large grains during phase transition at 80 °C. decomposition reduce annealing 150 °C traps. Compared control device (4.12%), maximum efficiency :CBZ PSC reaches 11.21%, highest reported date. A certified 10.90% obtained an independent testing laboratory. In addition, unsealed devices maintain initial efficiencies ≈100%, 90%, 80% under inert atmosphere (60 days), standard power point tracking (650 h 65 °C), ambient air (100 h), respectively.

Language: Английский

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Tin perovskite transistors and complementary circuits based on A-site cation engineering

Nature Electronics, Journal Year: 2023, Volume and Issue: 6(9), P. 650 - 657

Published: Aug. 21, 2023

Abstract Tin halide perovskites have the general chemical formula ASnX 3 , where A is a monovalent cation and X anion. These semiconducting materials can be used to fabricate p-type transistors at low cost temperature could potentially integrated with n-type oxide-based create complementary circuits. However, suffer from crystallization controllability high film defect density, resulting in uncompetitive device performance. Here we show that pure-tin perovskite thin-film created using triple cations of caesium–formamidinium–phenethylammonium. The approach leads high-quality cascaded tin channel films low-defect, phase-pure perovskite/dielectric interfaces. optimized exhibit hole mobilities over 70 cm 2 V −1 s on/off current ratios 10 8 which are comparable commercial low-temperature polysilicon transistors. fabricated solution-processing methods temperatures no higher than 100 °C. We also integrate devices metal oxide inverters voltage gains 370, NOR NAND logic gates rail-to-rail switching

Language: Английский

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Surface chemical polishing and passivation minimize non-radiative recombination for all-perovskite tandem solar cells

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Aug. 26, 2024

All-perovskite tandem solar cells have shown great promise in breaking the Shockley–Queisser limit of single-junction cells. However, efficiency improvement all-perovskite is largely hindered by surface defects induced non-radiative recombination loss Sn–Pb mixed narrow bandgap perovskite films. Here, we report a reconstruction strategy utilizing polishing agent, 1,4-butanediamine, together with passivator, ethylenediammonium diiodide, to eliminate Sn-related and passivate organic cation halide vacancy on Our not only delivers high-quality films close-to-ideal stoichiometric ratio but also minimizes energy at perovskite/electron transport layer interface. As result, our bandgaps 1.32 1.25 eV realize power conversion efficiencies 22.65% 23.32%, respectively. Additionally, further obtain certified 28.49% two-junction The impacted nonradiative authors utilize agent passivator deliver surface.

Language: Английский

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The progress and challenges of tin-lead alloyed perovskites: Toward the development of large-scale all-perovskite tandem solar cells

Chem, Journal Year: 2025, Volume and Issue: 11(1), P. 102384 - 102384

Published: Jan. 1, 2025

Language: Английский

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