Molecular Structure Tailoring of Organic Spacers for High-Performance Ruddlesden–Popper Perovskite Solar Cells DOI Creative Commons

Pengyun Liu,

Xuejin Li, Tonghui Cai

et al.

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 17(1)

Published: Oct. 10, 2024

Abstract Layer-structured Ruddlesden–Popper (RP) perovskites (RPPs) with decent stability have captured the imagination of photovoltaic research community and bring hope for boosting development perovskite solar cell (PSC) technology. However, two-dimensional (2D) or quasi-2D RP PSCs are encountered some challenges large exciton binding energy, blocked charge transport poor film quality, which restrict their performance. Fortunately, these issues can be readily resolved by rationally designing spacer cations RPPs. This review mainly focuses on how to design molecular structures organic spacers aims endow RPPs outstanding applications. We firstly elucidated important roles in impacting crystallization kinetics, transporting ability Then we brought three aspects attention spacers. Finally, presented specific structure strategies aiming improve performance PSCs. These proposed this will provide new avenues develop novel advance RPP technology future

Language: Английский

Strategies for constructing high-performance tin-based perovskite solar cells DOI

Barbara Nakamanya,

Tonny Tonny Kakooza, Qianwen Sun

et al.

Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: 12(12), P. 4184 - 4207

Published: Jan. 1, 2024

Herein, we present different approaches through which tin-based perovskite solar cells can potentially achieve prolonged stability under various environmental conditions and high efficiency, paving the way for future commercialization.

Language: Английский

Citations

9
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
Coordination Nanosheets Stabilizing Efficient Tin-Based Perovskite Solar Cells DOI Creative Commons
Dhruba B. Khadka, Y.C. Kuo, Yi Li

et al.

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

Published: April 24, 2025

Tin-based perovskites, characterized by their advantageous bandgap and much lower toxicity, have emerged as a promising alternative to lead-based perovskites in solar cell applications. However, the efficiency stability of tin-based perovskite cells (Sn-PSCs) are still limited defects resulting from easy oxidation Sn2+ Sn4+. Herein, an approach enhance optoelectronic performance Sn-PSCs incorporating terpyridine-zinc(II) (ZnTPY) coordination nanosheets (CONASHs), synthesized via liquid-liquid interfacial polymerization, into is delivered. Following physical fragmentation, ZnTPY CONASHs, enriched with unsaturated terpyridine groups, undergo multidentate chelation SnI2, forming ZnTPY:SnI2 heterogeneous nuclei. This process effectively enhances crystallization while mitigating recombination defect chemistry related oxidation. As result superior crystal quality, CONASHs-modified tin exhibits longer photoluminescence lifetime. Consequently, Sn-PSC complex achieves power conversion 11.59%, compared 9.14% for control device, along improved operational encapsulation. Thus, this work underscores critical role regulating precursor solution achieve high-quality films, offering pathway more efficient stable Sn-PSCs.

Language: Английский

Citations

1
Progress, challenges, and further trends of all perovskites tandem solar cells: A comprehensive review DOI
Qianqian Chu, Zhijian Sun, Jinho Hah

et al.

Materials Today, Journal Year: 2023, Volume and Issue: 67, P. 399 - 423

Published: July 1, 2023

Language: Английский

Citations

17
High‐Stable Lead‐Free Solar Cells Achieved by Surface Reconstruction of Quasi‐2D Tin‐Based Perovskites DOI Creative Commons
Feng Yang, Rui Zhu,

Zuhong Zhang

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(7)

Published: Oct. 27, 2023

Abstract Tin halide perovskites are an appealing alternative to lead perovskites. However, owing the lower redox potential of Sn(II)/Sn(IV), particularly under presence oxygen and water, accumulation Sn(IV) at surface layer will negatively impact device's performance stability. To this end, work has introduced a novel multifunctional molecule, 1,4‐phenyldimethylammonium dibromide diamine (phDMADBr), form protective on Sn‐based perovskite films. Strong interactions between phDMADBr improve electron transfer, passivating uncoordinated Sn(II), fortify against water oxygen. In situ grazing incidence wide‐angle X‐ray scattering (GIWAXS) analysis confirms enhanced thermal stability quasi‐2D phase, hence overall perovskite. Long‐term in devices is achieved, retaining over 90% original efficiency for more than 200 hours 10% RH moisture N 2 environment. These findings propose new approach enhance operational devices, offering strategy advancing lead‐free optoelectronic applications.

Language: Английский

Citations

16
Controlling Tin Halide Perovskite Oxidation Dynamics in Solution for Perovskite Optoelectronic Devices DOI Creative Commons

Shun Tian,

Guixiang Li, Roland C. Turnell‐Ritson

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(32)

Published: May 15, 2024

As a leading contender to replace lead halide perovskites, tin-based perovskites have demonstrated ever increasing performance in solar cells and light-emitting diodes (LEDs). They tend be processed with dimethyl sulfoxide (DMSO) solvent, which has been identified as major contributor the Sn(II) oxidation during film fabrication, posing challenge further improvement of Sn-based perovskites. Herein, we use NMR spectroscopy investigate kinetics SnI

Language: Английский

Citations

6
Nanoscale enhancements in perovskite-based photovoltaics DOI
Sikandar Aftab, Xin Li, Sajjad Hussain

et al.

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 480, P. 148143 - 148143

Published: Dec. 17, 2023

Language: Английский

Citations

13
Perovskite photovoltaics: exploring the role of 2D and 1D carbon-based interfacial layers for enhanced stability and efficiency DOI
Saravanan Pandiaraj, Sikandar Aftab, Ganesh Koyyada

et al.

Materials Today Energy, Journal Year: 2024, Volume and Issue: 44, P. 101629 - 101629

Published: June 25, 2024

Language: Английский

Citations

5
Decoding the Broadband Emission of 2D Pb‐Sn Halide Perovskites through High‐Throughput Exploration DOI
Elham Foadian, Jonghee Yang, Sumner B. Harris

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(52)

Published: Aug. 24, 2024

Abstract Unlike single‐component 2D metal halide perovskites (MHPs) exhibiting sharp excitonic photoluminescence (PL), a broadband PL emerges in mixed Pb‐Sn lattices. Two physical models –self‐trapped exciton and defect‐induced Stokes‐shift – are proposed to explain this unconventional phenomenon. However, the explanations provide limited rationalizations without consideration of formidable compositional space, thus, fundamental origin remains elusive. Herein, high‐throughput automated experimental workflow is established systematically explore MHPs, employing PEA (Phenethylammonium) as model cation known work rigid organic spacer. Spectrally, becomes further broadened with rapid 2 PbI 4 phase segregation increasing Pb concentrations during early‐stage crystallization. Counterintuitively, MHPs high exhibit prolonged lifetimes. Hyperspectral microscopy identifies substantial those films, hypothesizing that establishment charge transfer excitons by upon crystallization at high‐Pb compositions results distinctive properties. These indicate two independent mechanisms—defect‐induced Stoke‐shifts segregation—coexist which significantly correlates Pb:Sn ratio, thereby simultaneously contributing emission HPs.

Language: Английский

Citations

5
Stable Sn-Based Hybrid Perovskite-Related Structures with Tunable Color Coordinates via Organic Cations in Low-Temperature Synthesis DOI Creative Commons
Aarya Prabhakaran, Balaji Dhanabalan, Iryna Andrusenko

et al.

ACS Energy Letters, Journal Year: 2023, Volume and Issue: 8(6), P. 2630 - 2640

Published: May 16, 2023

Organic-inorganic Pb-free layered perovskites are efficient broadband emitters and thus promising materials for lighting applications. However, their synthetic protocols require a controlled atmosphere, high temperature, long preparation time. This hinders the potential tunability of emission through organic cations, as is instead common practice in Pb-based structures. Here, we present set Sn-Br perovskite-related structures that display different chromaticity coordinates photoluminescence quantum yield (PLQY) up to 80%, depending on choice monocation. We first develop protocol performed under air at 4 °C, requiring only few steps. X-ray 3D electron diffraction analyses show exhibit diverse octahedra connectivity (disconnected face-sharing) optical properties, while preserving organic-inorganic layer intercalation. These results provide key insight into previously underexplored strategy tune color cations with complex molecular configurations.

Language: Английский

Citations

11