Microstress for metal halide perovskite solar cells: from source to influence and management

Lei, Yixiao; Liu, Wenwu; Li, Caixia; Da, Shiji; Zheng, Yawen; Wu, Youzhi; Ran, Fen

doi:10.1039/d3nr05264h

Nanoscale

2024

DOI: 10.1039/d3nr05264h

|View full text |Cite

Microstress for metal halide perovskite solar cells: from source to influence and management

Yixiao Lei,

Wenwu Liu,

Caixia Li

et al.

Abstract: The power conversion efficiency of metal halide perovskite solar cells has increased dramatically in recent years, but there are still major bottlenecks in the commercial application of such materials, including...

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article3

Relationship

Self Cite0

Independent3

Authors

Journals

Cited by 3 publications

References 98 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Strain in Halide Perovskite Solar Cells: Origins, Impacts, and Regulation

Guo,

Li,

Kim

et al. 2024

Solar RRL

View full text Add to dashboard Cite

Perovskite solar cells have made significant progress in the past decade, demonstrating promising potential for next‐generation solar technology. However, the strain‐induced intrinsic instability of mixed‐halide perovskites poses a significant obstacle to their widespread commercialization. Relaxation of the perovskite lattice strain is a crucial approach for enhancing photovoltaic performance and broadening their application potential. In this study, the authors conduct an analysis of strain progression in perovskite thin films, examining its impact on the physical properties of perovskites and the performance of perovskite solar cells. Furthermore, they explore its influence on device stability from the perspectives of phase transitions, chemical decomposition, and mechanical fragility. Additionally, they provide a summary of key advancements in strain‐relaxation strategies and offer design principles and synthetic approaches to address the issue of lattice strain in perovskites. This paper is intended to lay the groundwork for the theoretical development of effective strain‐relaxation methods, moving beyond sole reliance on empirical optimization.

show abstract

Strain in Halide Perovskite Solar Cells: Origins, Impacts, and Regulation

Guo,

Li,

Kim

et al. 2024

Solar RRL

View full text Add to dashboard Cite

show abstract

Sufficient Hole Injection for High-Performance Blue Perovskite Light-Emitting Diodes

Chen,

et al. 2024

ACS Photonics

View full text Add to dashboard Cite

Nickel oxide (NiO x ) has been extensively adopted as a promising hole transport material for perovskite light-emitting diodes (PeLEDs). However, its shallow valence band induces a large hole injection barrier for pure-blue PeLEDs with moderate device performances. Herein, an ingenious interface layer of ammonium molybdate (AMM) is proposed to successfully tailor the NiO x energy band for fast hole injection. After careful comparisons with pristine NiO x and conventional MoO 3 modification layer, we demonstrate the superior capacity of AMM to precisely tune the valence band of NiO x for efficient hole injection and thus, a balanced charge injection in the devices. As a result, we reveal the favorable energy band of NiO x -AMM for one of the best-performing pure-blue PeLEDs with an impressive efficiency of 9.15% at 473 nm and a high brightness of 5550 cd m −2 . More importantly, we demonstrate a remarkably low turn-on voltage of 2.4 V, being the smallest turn-on voltage for pure-blue PeLEDs through a sufficient hole injection. Consequently, this work contributes to a feasible and efficient approach to tailor the NiO x energy band for highly performing pure-blue PeLEDs.

show abstract

Impact of Residual Strains on the Carrier Mobility and Stability of Perovskite Films

Slimani,

Gerlein,

Izquierdo

et al. 2024

Nanomaterials

View full text Add to dashboard Cite

Solution-based inorganic–organic halide perovskites are of great interest to researchers because of their unique optoelectronic properties and easy processing. However, polycrystalline perovskite films often show inhomogeneity due to residual strain induced during the film’s post-processing phase. In turn, these strains can impact both their stability and performance. An exhaustive study of residual strains can provide a better understanding and control of how they affect the performance and stability of perovskite films. In this work, we explore this complex interrelationship between residual strains and electrical properties for methylammonium CH3NH3PbI3−xClx films using grazing incidence X-ray diffraction (GIXRD). We correlate their resistivity and carrier mobility using the Hall effect. The sin2(ψ) technique is used to optimize the annealing parameters for the perovskite films. We also establish that temperature-induced relaxation can yield a significant enhancement of the charge carrier transports in perovskite films. Finally, we also use Raman micro-spectroscopy to assess the degradation of perovskite films as a function of their residual strains.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Microstress for metal halide perovskite solar cells: from source to influence and management

Abstract: The power conversion efficiency of metal halide perovskite solar cells has increased dramatically in recent years, but there are still major bottlenecks in the commercial application of such materials, including...

Cited by 3 publications

References 98 publications

Strain in Halide Perovskite Solar Cells: Origins, Impacts, and Regulation

Strain in Halide Perovskite Solar Cells: Origins, Impacts, and Regulation

Sufficient Hole Injection for High-Performance Blue Perovskite Light-Emitting Diodes

Impact of Residual Strains on the Carrier Mobility and Stability of Perovskite Films

Contact Info

Product

Resources

About