In Situ Probing the Crystallization Kinetics in Gas‐Quenching‐Assisted Coating of Perovskite Films DOI Creative Commons
Shudi Qiu,

Martin Majewski,

Lirong Dong

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(10)

Published: Jan. 7, 2024

Abstract The pursuit of commercializing perovskite photovoltaics is driving the development various scalable crystallization techniques. Among them, gas quenching a promising approach for high‐throughput deposition films. However, films prepared by gas‐quenching assisted blade coating are susceptible to formation pinholes and frequently show inferior crystallinity if interplay between film coating, drying, kinetics not fully optimized. That arguably requires thorough understanding how single processing steps influence printed Here, in situ optical spectroscopies integrated into doctor‐blading setup that allows real‐time monitor during process. It found essential role treatment achieving smooth compact controlling nucleation rate. Moreover, with assistance phase‐field simulations, excessive methylammonium iodide revealed increase grain size accelerating crystal growth These results tailored control rate critical optimal quality, leading solar cells champion power conversion efficiency 19.50% mini modules 15.28% achieved.

Language: Английский

Realizing efficient broadband near-infrared emission and multimode photoluminescence switching via coordination structure modulation in Sb3+-doped 0D organic metal chlorides DOI

Shuiyue Yu,

Hui Peng, Qilin Wei

et al.

Materials Horizons, Journal Year: 2024, Volume and Issue: 11(9), P. 2230 - 2241

Published: Jan. 1, 2024

We developed three NIR emitters of Sb 3+ -doped 0D organic metal chlorides and demonstrated their night vision applications in vision. One shows tunable emission characteristics quintuple-mode fluorescence anti-counterfeiting information encryption.

Language: Английский

Citations

18
Unlocking the Ambient Temperature Effect on FA‐Based Perovskites Crystallization by In Situ Optical Method DOI
Yunfan Wang, Zixin Zeng, Yuxuan Zhang

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(17)

Published: Sept. 15, 2023

Multiple cation-composited perovskites are demonstrated as a promising approach to improving the performance and stability of perovskite solar cells (PSCs). However, recipes developed for fabricating high-performance in laboratories always not transferable large-scale production, crystallization is highly sensitive processing conditions. Here, using an situ optical method, ambient temperature effect on process multiple investigated. It found that typical solvent-coordinated intermediate phase methylammonium lead iodide (MAPbI

Language: Английский

Citations

36
A Novel Organic Phosphonate Additive Induced Stable and Efficient Perovskite Solar Cells with Efficiency over 24% Enabled by Synergetic Crystallization Promotion and Defect Passivation DOI

Caidong Cheng,

Yiguo Yao,

Lei Li

et al.

Nano Letters, Journal Year: 2023, Volume and Issue: 23(19), P. 8850 - 8859

Published: Sept. 25, 2023

Defect passivation is crucial to enhancing the performance of perovskite solar cells (PSCs). In this study, we successfully synthesized a novel organic compound named DPPO, which consists double phosphonate group. Subsequently, incorporated DPPO into solution. The presence P═O group interacting with undercoordinated Pb2+ yielded film superior crystallinity, greater crystal orientation, and smoother surface. Additionally, addition can passivate defect states enhance upper layer energy level alignment, will improve carrier extraction prevent nonradiative recombination. Consequently, an impressive champion efficiency 24.24% was achieved minimized hysteresis. Furthermore, DPPO-modified PSCs exhibit enhanced durability when exposed ambient conditions, maintaining 95% initial for 1920 h at average relative humidity (RH) 30%.

Language: Английский

Citations

35
Current State and Future Perspectives of Printable Organic and Perovskite Solar Cells DOI
Fengzhu Li, Francis Lin, Alex K.‐Y. Jen

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(17)

Published: Oct. 12, 2023

Abstract Photovoltaic technology presents a sustainable solution to address the escalating global energy consumption and reliable strategy for achieving net‐zero carbon emissions by 2050. Emerging photovoltaic technologies, especially printable organic perovskite solar cells, have attracted extensive attention due their rapidly transcending power conversion efficiencies facile processability, providing great potential revolutionize market. To accelerate these technologies translate from laboratory scale industrial level, it is critical develop well‐defined scalable protocols deposit high‐quality thin films of photoactive charge‐transporting materials. Herein, current state cells summarized view regarding challenges prospects toward commercialization shared. Different printing techniques are first introduced provide correlation between material properties mechanisms, optimization ink formulation film‐formation during large‐area deposition different functional layers in devices then discussed. Engineering perspectives also discussed analyze criteria module design. Finally, provided future development practical commercialization. It believed that this perspective will insight into other electronic devices.

Language: Английский

Citations

31
Deciphering Reaction Products in Formamidine-Based Perovskites with Methylammonium Chloride Additive DOI
Liang Chen, Manman Hu, Seonghwan Lee

et al.

Journal of the American Chemical Society, Journal Year: 2023, Volume and Issue: 145(50), P. 27900 - 27910

Published: Dec. 11, 2023

The fabrication of formamidinium lead iodide (FAPbI3) perovskite solar cells (PSCs) involves the addition methylammonium chloride (MACl) to promote low-temperature α-phase formation and grain growth. However, as added MACl deprotonates volatilizes into methylamine (MA0) HCl for removal, MA0 can chemically interact with (FA+), forming methyl (MFA+) a byproduct. Despite its significance, chemical interactions among FAPbI3 perovskites, additives, their byproducts remain poorly understood. Our findings reveal that FA+ reaction primarily yields mixture cis/trans-N-methyl (MFAI) isomers, cis-MFAI prevailing dominant species. Moreover, MFAI subsequently reacts PbI2 yield fully formed cis-MFAPbI3 2H-phase perovskite. We elucidated effects on crystal growth, phase stability, band gap formamidine-based perovskites through growth single crystals. This research offers valuable insights role these in influencing efficiency long-term stability future PSCs.

Language: Английский

Citations

25
Volatile Perovskite Precursor Ink Enables Window Printing of Phase‐Pure FAPbI3 Perovskite Solar Cells and Modules in Ambient Atmosphere DOI

Linhao Yuan,

Xining Chen,

Xianming Guo

et al.

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 63(7)

Published: Dec. 11, 2023

Despite the great success of perovskite photovoltaics in terms device efficiency and stability using laboratory-scale spin-coating methods, demand for high-throughput cost-effective solutions remains unresolved rarely reported because complicated nature crystallization. In this work, we propose a stable precursor ink design strategy to control solvent volatilization crystallization enable wide speed window printing (0.3 18.0 m/min) phase-pure FAPbI

Language: Английский

Citations

23
Synergistic Effect of Alkylammonium Chlorides to Trigger an Ultrafast Nucleation for Antisolvent‐Free Perovskite Solar Cells Processed from 2‐Methoxyethanol DOI

Xueyun Wu,

Yiting Zheng,

Jianghu Liang

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(18)

Published: Jan. 19, 2024

Abstract 2‐Methoxyethanol (2ME), as a more environmentally friendly solvent with lower boiling point compared to dimethylformamide, is ideal for the fabrication of perovskite solar cells (PSCs). However, when 2ME used antisolvent‐free deposition films, an uncontrolled nucleation process and easy phase transition δ‐phase often occur. Herein, ultrafast developed using methylamine chloride (MACl) n‐butylammonium (BACl) dual additives in without further addition. While MACl can rapidly induce MACl‐based nuclei initiate formamidinium lead iodide (FAPbI 3 ), addition BACl precursor increase rate density nuclei, bypass from δ‐ α‐phase during crystal growth obtain highly crystalline pinhole‐free film. As result, FAPbI PSCs achieve power conversion efficiency (PCE) 23.6%. This work provides new inspiration controlling quality thin films via suitable upscaling.

Language: Английский

Citations

15
Iodine Modulates the MACl‐Assisted Growth of FAPbI3 for High Efficiency Perovskite Solar Cells DOI Creative Commons
Junnan Hu, Jae Won Ahn, Zhaojian Xu

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(25)

Published: April 13, 2024

Abstract The preferential growth of α‐phase formamidinium perovskite (α‐FAPbI 3 ) at low temperatures can be achieved with the incorporation chloride‐based additives, methylammonium chloride (MACl) being most common example. However, compared to other less‐volatile MACl only remains in growing film for a short time before evaporating during annealing, primarily influencing early stages formation. In addition, evaporation as methylamine (MA 0 and HCl introduce side reaction between MA (FA), undermining compositional purity phase stability α‐FAPbI . this study, it is demonstrated that addition iodine (I 2 into FAPbI precursor solution containing suppresses MA‐FA annealing. Additionally, delayed owing strong interaction triiodide. added I facilitates spontaneous prior an improved bottom morphology due formation fewer byproducts. Perovskite solar cells derived from ‐incorporated deliver champion power conversion efficiency 25.2% attributed suppressed non‐radiative recombination.

Language: Английский

Citations

15
Modulating Nucleation and Crystal Growth of Tin Perovskite Films for Efficient Solar Cells DOI
Yali Chen, Yu Tong, Feng Yang

et al.

Nano Letters, Journal Year: 2024, Volume and Issue: 24(18), P. 5460 - 5466

Published: April 26, 2024

The performance of tin halide perovskite solar cells (PSCs) has been severely limited by the rapid crystallization perovskites, which usually leads to an undesirable film quality. In this work, we tackle issue regulating nucleation and crystal growth films using a small Lewis base additive, urea. urea–SnI2 interaction facilitates formation larger more uniform clusters, thus accelerating process. Additionally, process is extended, resulting in high-quality with compact morphology, increased crystallinity, reduced defects. Consequently, efficiency PSCs significantly from 10.42% 14.22%. This work highlights importance manipulating perovskites realize efficient PSCs.

Language: Английский

Citations

15
Bilayer interface engineering through 2D/3D perovskite and surface dipole for inverted perovskite solar modules DOI Creative Commons
Jiarong Wang, Le‐Yu Bi, Xiaofeng Huang

et al.

eScience, Journal Year: 2024, Volume and Issue: unknown, P. 100308 - 100308

Published: Sept. 1, 2024

Language: Английский

Citations

14