Molecularly Engineered Alicyclic Organic Spacers for 2D/3D Hybrid Tin‐based Perovskite Solar Cells DOI Creative Commons
Jin Hyeok Choi, Jimin Kim,

Minyoung Jeong

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 3, 2024

Abstract The high defect density and inferior crystallinity remain great hurdles for developing highly efficient stable Sn‐based perovskite solar cells (PSCs). 2D/3D heterostructures show strong potential to overcome these bottlenecks; however, a limited diversity of organic spacers has hindered further improvement. Herein, novel alicyclic spacer, morpholinium iodide (MPI), is reported structurally stabilized perovskite. Introducing secondary ammonium ether group in 2D enhances its rigidity, which leads increased hydrogen bonding intermolecular interaction within These strengthened interactions facilitate the formation oriented with low structural disorder, effective passivation Sn I defects. Consequently, MP‐based PSCs achieved power conversion efficiency (PCE) 12.04% superior operational oxidative stability. This work presents new insight into design PSCs.

Language: Английский

A Revisit of Crystallization in Tin Halide Perovskite Thin Films: From Nucleation, Intermediate to Crystal Growth DOI

Mingyu Yin,

Huanhuan Yao,

Hongju Qiu

et al.

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

Published: June 25, 2024

Abstract Perovskite solar cells (PSCs) are exuding unique charm in the third generation of thin film cell technology with high power conversion efficiency (PCE) and low production cost. Recently, lead‐free tin halide perovskite (TPSCs) have drawn significant research interests due to advantages toxicity, near‐ideal bandgap carrier mobility. However, rapid crystallization easy oxidation limits quality final performance cells. Therefore, deposition high‐quality films is key advance TPSCs. In this review, classical theory solution nucleation crystal growth reviewed correlated practical film. The physicochemical properties those lead counterpart differences process carefully compared. On basis, recent regulation strategies systematically summarized terms management, intermediate phase engineering regulation. addition, preparation mixed tin‐lead (Sn‐Pb) PSCs toward also discussed, as well limiting factors for device stability. Finally, future challenges prospects discussed more efficient stable

Language: Английский

Citations

12
Lewis Base Strategy for Crystallization Control and Buried Interface Passivation on Hydrophobic PTAA Substrate for Efficient Tin–Lead Perovskite and All-Perovskite Tandem Solar Cells DOI
Jinling Chen, Jiajun Du,

Jingyu Cai

et al.

ACS Energy Letters, Journal Year: 2025, Volume and Issue: unknown, P. 1117 - 1128

Published: Feb. 7, 2025

Language: Английский

Citations

1
Defects Mitigation and Charge Transport Promotion via a Multifunctional Lewis Base for Efficient 2D/3D Tin Perovskite Solar Cells DOI
Yali Chen, Kun Wang, Wei Chen

et al.

Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 26, 2025

Abstract Tin perovskite solar cells (PSCs) have garnered considerable attention as promising alternatives to lead PSCs due their lower toxicity and outstanding optoelectronic properties. However, efficiency stability, particularly in 2D/3D tin PSCs, are usually hindered by high defect densities inefficient carrier transport. In this study, a small‐molecule Lewis base with multiple functional groups‐cyanoacetohydrazide (CAH) is employed mitigate defects enhance charge transport PSCs. It revealed that the carbonyl, amine, cyano groups CAH form strong chemical bonds Sn 2+ ions, resulting synergetic coordination effects. Moreover, interaction between effectively regulates crystallization process of film, high‐quality film enhanced crystallinity, reduced density, modulated phase distribution. As result, optimized achieve remarkable power conversion 15.06%, marking one highest values for Furthermore, devices exhibit retaining 95% initial performance after 2000 h storage nitrogen atmosphere.

Language: Английский

Citations

1
Rare Earth‐Induced CoO6 Octahedral Distortion in Perovskite: An Efficient Catalytic Platform for RuO2‐Catalyzed Water Oxidation DOI

Kunhong Jiang,

Yong Jiang, Zhong Liang

et al.

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

Published: Aug. 22, 2024

Abstract Rare earth (RE)‐based perovskites are considered as promising platform for oxygen evolution reaction (OER) due to their low cost and tunable structures. However, the systematic synthesis of perovskite catalysts with satisfactory performance has rarely been reported. Herein, a general synthetic protocol RE‐substituted LaCoO 3 (RE‐LCO) is demonstrated. Particularly, after loaded RuO 2 , as‐prepared :0.2Ce‐LCO hybrid structures exhibit OER overpotential 135 mV at 10 mA cm −2 in 1.0 m KOH, together remarkable long‐term operation, representing one most efficient robust Ru‐based catalysts. Comprehensive experimental results indicate that enhanced mechanism attributed Ce‐substitution, which alters geometric configuration CoO 6 octahedra generates more vacancies. Furthermore, interaction between Ce‐LCO stabilizes valence state Ru site. Theoretical calculations corroborate Co 3d orbitals overlap Ce 4f near Fermi level, greatly improving electron transfer atoms.

Language: Английский

Citations

6
Optimizing the Hole-Transport Layer with Ammonium Thiocyanate for Enhanced Performance in Lead-Free Perovskite Light-Emitting Diodes DOI

Li Li,

Jiaying Xu, Jing Liu

et al.

ACS Applied Electronic Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 7, 2025

Tin-based perovskite materials are arising as promising contenders for high-efficiency pure-red light-emitting diodes. However, the primary limitation to external quantum efficiency (EQE) of tin-based diodes (Sn-PeLEDs) stems from rapid crystallization processes and adverse P-type self-doping effects. In this study, we have effectively controlled speed perovskites through rational interfacial engineering improved stability tin halide film. We utilized ammonium thiocyanate (NH4SCN) alter properties hole-transport layer, which consists poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS). Thiocyanate ions (SCN–) can form interactions with Sn–I frameworks. This not only slows rate but also suppresses oxidation Sn2+, enhancing its passivating defects associated undercoordinated Sn2+. results in smooth, uniform, compact thin films that eliminate Sn4+ within resulting film, leading enhanced radiative recombination. Sn-PeLEDs devices achieving a peak EQE 5.8%, approximately 4.6-fold higher than control device. Additionally, Commission Internationale de L'Eclairage (CIE) coordinates (0.69, 0.31) demonstrate close conformity National Television System Committee (NTSC) standardized red standard, indicating high degree color fidelity.

Language: Английский

Citations

0
Tailored Supramolecular Interface Enables Efficient and Stable Tin Halide Perovskite Photovoltaics DOI Creative Commons

Miao Zeng,

Zhongliang Yan,

Xinyu Ye

et al.

ACS Energy Letters, Journal Year: 2025, Volume and Issue: unknown, P. 1357 - 1365

Published: Feb. 24, 2025

Language: Английский

Citations

0
Regulating crystallization kinetics in high-performance perovskites solar modules via vapor seed layer engineering DOI Creative Commons
Juan Zhang,

Bingchen He,

Jincheng Huang

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161632 - 161632

Published: March 1, 2025

Language: Английский

Citations

0
Synergistic Interfacial Dipole and π-Conjugation Effects Enable Efficient Tin Perovskite Solar Cells DOI

Feng Yang,

Kun Wang, Yang Yang

et al.

Nano Letters, Journal Year: 2025, Volume and Issue: unknown

Published: March 31, 2025

Tin perovskites are considered promising candidates for realizing high-performance, lead-free perovskite solar cells (PSCs). Despite prominent progress made through bulk optimization, unsatisfactory interfaces between tin and charge transport layers critical obstacles to boosting device performance. Herein, we address this issue by introducing piperazine dihydroiodide (PDI) ferrocene (Fc) at the interface of perovskite/C60 synergistically improve interfacial transport. Specifically, PD+ interacts with formamidinium ions (FA+) form an dipole, Fc establishes π-π conjugation C60. These effects significantly electron extraction reduce energy losses. As a result, efficiency PSCs is remarkably improved from 10.62% 13.65%, accompanied enhanced stability. This work highlights importance modulation in toward efficient eco-friendly photovoltaics.

Language: Английский

Citations

0
Heteroatomic molecules for coordination engineering towards advanced Pb-free Sn-based perovskite photovoltaics DOI
Weiyin Gao, Rui Huang, He Dong

et al.

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 23, 2024

Coordination engineering via developing various heteroatomic molecules has enabled Sn-based perovskite solar cells with efficiency approaching 16% and robust stability. This review summarizes the fundamentals, advances, prospects of this topic.

Language: Английский

Citations

3
Defect Passivation Strategies in Two‐Dimensional Organic–Inorganic Hybrid Perovskites for Enhanced Photoelectric Performance DOI Open Access

Lei Liu,

Hualin Bi, Jiahe Yan

et al.

Advanced Optical Materials, Journal Year: 2024, Volume and Issue: 12(27)

Published: July 30, 2024

Abstract The polycrystalline perovskite films treated with solutions inevitably are subjected to high‐density crystal defects, significantly affecting the performance and stability of perovskite‐based photodetectors. In this research, a reasonably designed organic small molecule using piperazine iodide (PI) as an additive is employed modify films. results indicate that not only improves crystallinity film but also effectively passivates defects by modifying local electron density. Consequently, recombination non‐radiation charges inhibited, improving optoelectronic device. modified flexible photoelectric device exhibits responsivity 3.07 mA W −1 under 405 nm laser illumination. Notably, it maintains high even after 7000 bending cycles. Furthermore, generality strategy verified applying various types two‐dimensional organic–inorganic hybrid perovskite. Additionally, another molecular amine phthalimide (PTM) selected further verify universality strategy, which reveals demonstrates same passivation PI. This provides novel idea for defect perovskite, signifying practical application significance developing wearable devices optimized performance, light‐emitting diodes, solar cells.

Language: Английский

Citations

2