Synergistic Effect of Solvent and Component Engineering for High‐Efficiency Carbon‐Based Perovskite Solar Cells DOI Open Access
Nannan Wang, Jiating Wang, Xinrui Gao

et al.

Small Methods, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

It is highly desired to get rid of the high-temperature annealing process in manufacturing perovskite solar cells (PSCs) reduce production costs. Herein, films are designed by rapidly evaporating a mixture solvent consisting methylamine ethanol solution (MA-EtOH sol) and acetonitrile (ACN) (MA-EtOH-ACN) dopping different amounts formamidinium iodide (FAI) into CH3NH2PbI3 (MAPbI3) precursor solution; as result, step effectively eliminated while cell efficiency remains unchanged. The situ UV-vis absorption for monitoring crystallization shows that FAI retards rate, leading dense smooth film. also found synergistic effect composition engineering reduces defect density, boosts strength, enhances film stability. Consequently, high-performance ITO/SnO2/FA0.05MA0.95PbI3/carbon device obtained with high 18.74%, an excellent short circuit current 25.04 mA cm-2, open voltage 1.16 V, fill factor 64.53%. carbon-based exhibit outstanding This strategy offers reference producing efficient stable straightforward ink method.

Language: Английский

A Versatile Bridging Molecule Managed the Buried SnO2/Perovskite Interface for Efficient and Stable Perovskite Solar Cells DOI

Haiting Tan,

Xuebin Yu, Weibin Ren

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: April 3, 2025

Buried interface in perovskite solar cells (PSCs) is a critical determination for the performance and stability because it dominates crystallization of layer, non-radiative recombination, ion migration at interfaces. Herein, novel versatile modifier, potassium sucrose octasulfate (K8SOS) which rich sulfonic groups ions, introduced bridging buried SnO2 interface, to improve interfacial states further device performance. It found that K8SOS serves as bridge can not only passivate defects through multi-site strengthening chemical binding, thus effectively inhibiting non-radiation recombination suppressing migration, but also optimize surface state absorber, ultimately achieving gratifying efficiency 25.32% with negligible hysteresis. What's more, optimized delivers admirable sustaining over 90% initial power conversion after being aged under continuous 85 °C heating stress 40 ± 5% RH humidity ≈600 ≈1200 h 1-sun illumination, respectively.

Language: Английский

Citations

1
Tailoring the Buried Interface by Dipolar Halogen-Substituted Arylamine for Efficient and Stable Perovskite Solar Cells DOI
Yan Wang, Qin Cao,

Xuwu Xiang

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(12), P. 15605 - 15616

Published: March 13, 2024

Improving the quality of buried interface is decisive for achieving stable and high-efficiency perovskite solar cells. Herein, we report engineering by using dipolar 2,4-difluoro-3,5-dichloroaniline (DDE) as adhesive between titanium dioxide (TiO2) MAPbI3. By manipulation anchoring groups DDE, this molecule not only passivated defects TiO2 but also optimized energy level alignment. Furthermore, film on modified surface showed improved crystallinity, released residual stress, reduced trap states. Therefore, these benefits directly contribute to a power conversion efficiency up 22.10%. The unencapsulated device retained 90% initial efficiencies (PCE) after continuous light illumination 1000 h 93% PCE exposure air with relative humidity 30–40% over 3000 h. Moreover, performance PSCs based FA0.15MA0.85PbI3 has increased from 20.48 23.51%. Our results demonstrate effectiveness universality halogen-substituted arylamine enhancing PSC performance.

Language: Английский

Citations

6
Passivating perovskite surface defects via bidentate chelation for high-performing solar cells DOI
Mengting Han,

Li’e Mo,

Zhiqian Yang

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 497, P. 155672 - 155672

Published: Sept. 10, 2024

Language: Английский

Citations

6
An efficient asymmetric structured hole transport material for perovskite solar cells DOI
Dan Peng,

Ziyang Xia,

Haoxin Wang

et al.

Chemical Communications, Journal Year: 2024, Volume and Issue: 60(19), P. 2665 - 2668

Published: Jan. 1, 2024

A novel asymmetric hole transport material is developed for perovskite solar cells, achieving an efficiency of 23.1%.

Language: Английский

Citations

5
Superior Intermolecular Noncovalent Interactions Empowered Dopant‐Free Hole Transport Materials for Efficient and Stable Sb2(S,Se)3 Solar Cells DOI
Wangchao Chen, Miaomiao Wu, Xuan Chen

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(22)

Published: Feb. 8, 2024

Abstract Antimony selenosulfide (Sb 2 (S,Se) 3 ) solar cells are critically restrained by the Sb /charge transport layer interface with scarce carriers transfer ability and high density of deep‐level defect‐induced traps, which prone to spark nonradiative recombination capture benign photogenerated carriers. Herein, utilizing intermolecular noncovalent interactions strategy in molecular stereoscopic structural engineering, two dopant‐free hole materials (HTMs) constructed, coded as T‐BDT F‐BDT, synergistic selectivity interfacial healing ability. The theoretical simulation experimental results decipher that F‐BDT possesses more favorable planarized conformation, charge delocalization/coupling stacking pattern, endow it salient selection, robust passivation appropriate energy level alignment. Consequently, cell HTM realize an outstanding power conversion efficiency 9.13%, hitting record for devices under conditions.

Language: Английский

Citations

5
An Acceptor–Donor–Acceptor Molecule Tailored Versatile Buffer Enabling Efficient and Stable Perovskite Solar Cells DOI

Shenglin Si,

Tianzhou Yin,

Yixuan Guo

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(36)

Published: May 17, 2024

Abstract Interface in perovskite solar cells (PSCs) is of vital importance because it dominates deep‐level defects and non‐radiative recombination, thus impacting both efficiency stability further. Herein, a symmetrical acceptor–donor–acceptor (A–D–A) conjugated molecule with the core architecture terthieno[3,2‐b hiophene 2‐(3‐oxo‐2,3‐dihydro‐1 H‐inden‐1‐ylidene)malononitrile, named 6TIC, as versatile buffer layer, adopted to enhance photovoltaic performance simultaneously. It found that filling at grain boundaries surface can not only chemically anchor components substantially eliminate interfacial suppress detestable but also effectively improve energy level alignment facilitate charge transfer interface, resulting an excellent power conversion 24.81% admirable fill factor 84.5%. Furthermore, benefiting from unexceptionable protection effect hydrophobic greatly improved operational delivered, retaining 90% initial for 960 h aging relative humidity 60 ± 5% air 1450 under continuous 85 °C heating stress. This strategy may provide new avenue advancing high‐efficiency stable PSCs.

Language: Английский

Citations

5
Manipulating the Crystallization of Perovskite via Metal‐Free DABCO‐NH4Cl3 Addition for High Efficiency Solar Cells DOI
Jing Zhang, Xinxin Zheng,

Qingyue Cui

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: June 5, 2024

Abstract The performance of perovskite cells closely relies on the quality films, leading to a special focus crystallization manipulation and defect control. In this study, novel approach using 1D metal‐free perovskites, specifically DABCO‐NH 4 Cl 3 , is proposed facilitate process 3D FAPbI while simultaneously addressing surface defects. Analysis kinetics reveals that introduction perovskites provides numerous nucleation sites, effectively slowing down crystal growth rates resulting in formation uniform, large‐grain films. Furthermore, organic groups present play crucial role passivating defects within structure. synergistic impact these factors enables achieve an efficiency 24.72% demonstrating exceptional stability. This research offers promising for controlling crystallization, development high‐efficiency stable materials.

Language: Английский

Citations

5
Imidazole derivative spacers functional-group-induced regulation of interfacial recrystallization and defect passivation ability for high-performance perovskite solar cells DOI
Feifan Chen, Guozhen Liu, Chaoyang Wu

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 497, P. 154638 - 154638

Published: Aug. 8, 2024

Language: Английский

Citations

5
Efficient and Stable Perovskite Solar Cells via Multi-Functional Guanylurea Phosphate Zwitterionic Bridging Strategy DOI
Wenguang Zhang,

Zijun Yi,

Yihuai Huang

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 498, P. 155169 - 155169

Published: Aug. 24, 2024

Language: Английский

Citations

5
Tailoring Defect Passivation for Efficient and Stable Perovskite Solar Cells via an Ionic Liquid Additive DOI

Haoxin Wen,

Yixuan Guo,

Tianzhou Yin

et al.

ACS Applied Energy Materials, Journal Year: 2024, Volume and Issue: 7(8), P. 3137 - 3144

Published: April 2, 2024

As a shining star in the photovoltaic community, perovskite solar cells (PSCs) have been making significant progress recent years. However, poor long-term operation stability caused by various defects seriously restricts their commercialization process. In this work, multifunctional ionic liquid passivator, 1-aminoethyl-3-methylimidazolium tetrafluoroborate (AMFB), is incorporated to passivate A+, B2+, and X– absorber enhance device further. It found that AMFB can cooperate with undercoordinated Pb2+ from hydrogen bonds organic cations I– ions, leading sufficiently passivated film. Besides, more suitable energy arrangement hydrophobicity of resultant interface contribute facilitated carrier transport durable devices. result, champion power conversion efficiency (PCE) optimized devices significantly increases 22.16 24.41% negligible hysteresis, large-area also boost 19.86 23.24%. Surprisingly, unpackaged demonstrate excellent robustness against moisture thermal stresses, maintaining over 90% initial PCE after 1500 h continuous heating at 85 °C 500 aging air relative humidity 70 ± 5%. This work provides an effective feasible method for improving performance PSCs facilitating

Language: Английский

Citations

3