Reversible Photoinduced Phase Segregation and Origin of Long Carrier Lifetime in Mixed‐Halide Perovskite Films
Sign Up to like & getrecommendations! Published in 2020 at "Advanced Functional Materials"
DOI: 10.1002/adfm.202002622
Abstract: Mixed‐halide hybrid perovskite semiconductors have attracted tremendous attention as a promising candidate for efficient photovoltaic and light‐emitting devices. However, these perovskite materials may undergo phase segregation under light illumination, thus affecting their optoelectronic properties. Here,… read more here.
Keywords: phase segregation; mixed halide; perovskite films; segregation ... See more keywords
Imbalanced Surface Charge Induced Phase Segregation in Mixed Halide Perovskites
Sign Up to like & getrecommendations! Published in 2024 at "Advanced Functional Materials"
DOI: 10.1002/adfm.202404255
Abstract: Alloying the metal halide perovskite composition has become a key strategy for engineering the optoelectronic properties for various applications. However, the difference in complexation between ions poses a threat to crystal stability. In particular, the… read more here.
Keywords: mixed halide; phase; charge; phase segregation ... See more keywords
Decoding the Broadband Emission of 2D Pb‐Sn Halide Perovskites through High‐Throughput Exploration
Sign Up to like & getrecommendations! Published in 2024 at "Advanced Functional Materials"
DOI: 10.1002/adfm.202411164
Abstract: Unlike single‐component 2D metal halide perovskites (MHPs) exhibiting sharp excitonic photoluminescence (PL), a broadband PL emerges in mixed Pb‐Sn 2D lattices. Two physical models –self‐trapped exciton and defect‐induced Stokes‐shift – are proposed to explain this… read more here.
Keywords: high throughput; halide perovskites; broadband; broadband emission ... See more keywords
Synergistic Impact of Passivation and Efficient Hole Extraction on Phase Segregation in Mixed Halide Perovskites
Sign Up to like & getrecommendations! Published in 2024 at "Advanced Optical Materials"
DOI: 10.1002/adom.202401753
Abstract: The interface between the hole transport layer (HTL) and perovskite in p‐i‐n perovskite solar cells (PSCs) plays a vital role in the device performance and stability. However, the impact of this interface on the vertical… read more here.
Keywords: mixed halide; segregation; segregation mixed; phase segregation ... See more keywords
Operationally Stable Perovskite/Silicon Tandem Solar Cells via Suppression of Lead Iodide‐Mediated Phase Segregation in Wide‐Bandgap Perovskites
Sign Up to like & getrecommendations! Published in 2025 at "Advanced Energy Materials"
DOI: 10.1002/aenm.202502696
Abstract: Phase segregation in wide‐bandgap mixed‐halide perovskites remains a critical bottleneck for the operational stability of solar cells, including tandem architectures. While lead iodide (PbI2) segregation at grain boundaries during crystallization is now recognized as a… read more here.
Keywords: segregation; tandem; solar cells; wide bandgap ... See more keywords
In Situ Ellipsometry Measurements on the Halide Phase Segregation of Mixed Halide Lead Perovskites
Sign Up to like & getrecommendations! Published in 2022 at "Chemphyschem"
DOI: 10.1002/cphc.202200022
Abstract: Abstract Methylammonium lead iodide bromides MAPb(BrxI1‐x)3 are a class of mixed halide lead perovskites, materials that offer high‐power conversion efficiencies and bandgap tunability. For these reasons, they are a promising absorber material for future solar… read more here.
Keywords: halide lead; mixed halide; phase segregation; segregation ... See more keywords
On the Use of Reflection Polarized Optical Microscopy for Rapid Comparison of Crystallinity and Phase Segregation of P3HT:PCBM Thin Films
Sign Up to like & getrecommendations! Published in 2024 at "Macromolecular Rapid Communications"
DOI: 10.1002/marc.202400577
Abstract: Abstract Rapid, nondestructive characterization techniques for evaluating the degree of crystallinity and phase segregation of organic semiconductor blend thin films are highly desired for in‐line, automated optoelectronic device fabrication facilities. Here, it is demonstrated that… read more here.
Keywords: crystallinity phase; reflection; phase segregation; crystallinity ... See more keywords
Divide & Conquer: Surfactant Protein SP-C and Cholesterol Modulate Phase Segregation in Lung Surfactant.
Sign Up to like & getrecommendations! Published in 2017 at "Biophysical journal"
DOI: 10.1016/j.bpj.2017.06.059
Abstract: Lung surfactant (LS) is an essential system supporting the respiratory function. Cholesterol can be deleterious for LS function, a condition that is reversed by the presence of the lipopeptide SP-C. In this work, the structure… read more here.
Keywords: surfactant protein; phase; cholesterol; lung surfactant ... See more keywords
Recent insights for achieving mixed halide perovskites without halide segregation
Sign Up to like & getrecommendations! Published in 2018 at "Current Opinion in Electrochemistry"
DOI: 10.1016/j.coelec.2018.09.007
Abstract: Summary The incorporation of halide perovskites in optoelectronics has provided a fast advance in the fabrication of new sensitizers with a balanced light-harvesting, free carrier transportation, and a progressive overcoming of the low tolerance to… read more here.
Keywords: mixed halide; recent insights; phase segregation; halide perovskites ... See more keywords
Complex evolution of photoluminescence during phase segregation of MAPb(I1-xBrx)3 mixed halide perovskite
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Luminescence"
DOI: 10.1016/j.jlumin.2020.117073
Abstract: Abstract Under illumination, the photoluminescence of a mixed-halide perovskite such as MAPb(I1-xBrx)3 is known to undergo a significant intensity enhancement while spectrally shifting to lower energies. The evolution of low energy photoluminescence is attributed to… read more here.
Keywords: phase segregation; photoluminescence; mapb xbrx;
How Chloride Suppresses Photoinduced Phase Segregation in Mixed Halide Perovskites
Sign Up to like & getrecommendations! Published in 2020 at "Chemistry of Materials"
DOI: 10.1021/acs.chemmater.0c02100
Abstract: Halide ion mobility in metal halide perovskites plays an important role in dictating the overall device performance and long-term stability of perovskite solar cells. Alloying with chloride (Cl), w... read more here.
Keywords: photoinduced phase; chloride suppresses; phase segregation; halide perovskites ... See more keywords