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
Photoinduced Halide Segregation in Ruddlesden-Popper 2D Mixed Halide Perovskite Films.
Sign Up to like & getrecommendations! Published in 2021 at "Advanced materials"
DOI: 10.1002/adma.202105585
Abstract: 2D lead halide perovskites, which exhibit bandgap tunability and increased chemical stability, have been found to be useful for designing optoelectronic devices. Reducing dimensionality with decreasing number of layers (n = 10-1) also imparts resistance to light-induced… read more here.
Keywords: mixed halide; halide perovskite; ion; segregation ... See more keywords
Multi‐Channel Pumped Ultrasonic Spray‐Coating for High‐Throughput and Scalable Mixed Halide Perovskite Solar Cells
Sign Up to like & getrecommendations! Published in 2020 at "Advanced Materials Interfaces"
DOI: 10.1002/admi.202001509
Abstract: The upscaling of perovskite solar cells to achieve high‐throughput and highly efficient photovoltaic devices is still challenging. In this work, spray deposition of MAPbI3‐xBrx mixed halide perovskite is achieved using a ternary channel pumping system… read more here.
Keywords: spray; perovskite solar; throughput; mixed halide ... See more keywords
Correlating Phase Behavior with Photophysical Properties in Mixed‐Cation Mixed‐Halide Perovskite Thin Films
Sign Up to like & getrecommendations! Published in 2019 at "Advanced Energy Materials"
DOI: 10.1002/aenm.201901350
Abstract: Mixed cation perovskites currently achieve very promising efficiency and operational stability when used as the active semiconductor in thin‐film photovoltaic devices. However, an in‐depth understanding of the structural and photophysical properties that drive this enhanced… read more here.
Keywords: cation mixed; phase; mixed halide; mixed cation ... 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
Solution-processed mixed halide CH3NH3PbI3−xClx thin films prepared by repeated dip coating
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Materials Science"
DOI: 10.1007/s10853-019-03740-0
Abstract: The mixed halide CH3NH3PbI3−xClx crystalline thin film has been prepared by two-step solution-processed repeated dip coating method at an ambient atmosphere. X-ray diffraction study reveals the presence of tetragonal and cubic phases in deposited film.… read more here.
Keywords: mixed halide; xclx; study; ch3nh3pbi3 xclx ... See more keywords
Efficient Design of Perovskite Solar Cell Using Parametric Grading of Mixed Halide Perovskite and Copper Iodide
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Electronic Materials"
DOI: 10.1007/s11664-018-6620-z
Abstract: The inevitable energy demands in today’s world have shifted the interest of many researchers toward one of the fastest growing technologies, perovskite solar cells (PSCs). Because of its esteemed performance, high absorbance, and cost-effective fabrication… read more here.
Keywords: perovskite solar; mixed halide; halide perovskite; solar cell ... See more keywords
Method to control the optical properties: Band gap energy of mixed halide Organolead perovskites
Sign Up to like & getrecommendations! Published in 2017 at "Arabian Journal of Chemistry"
DOI: 10.1016/j.arabjc.2017.09.002
Abstract: Abstract In this work, we studied the effect of varying the volume of mixed halide perovskites on the structural, morphological and optical properties of deposited thin films. A two-step process of spin coating and dipping… read more here.
Keywords: halide perovskites; mixed halide; band gap; energy ... See more keywords
Halogen-halogen bonds enable improved long-term operational stability of mixed-halide perovskite photovoltaics
Sign Up to like & getrecommendations! Published in 2021 at "Chem"
DOI: 10.1016/j.chempr.2021.08.009
Abstract: Summary Mixed-halide perovskite provides band-gap tunability, which is essential for tandem solar cell application. However, ion migration inducing phase segregation seriously affects the device’s long-term operational stability. The issue thus represents an important challenge for… read more here.
Keywords: mixed halide; halide perovskite; long term; halogen ... 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
Efficient mixed halide perovskite solar cells via solvent engineering process
Sign Up to like & getrecommendations! Published in 2019 at "Dyes and Pigments"
DOI: 10.1016/j.dyepig.2019.04.053
Abstract: Abstract Here, we have studied the influence of mixed halide methylammonium lead iodide (MAPbI3) and MAPb(I1-xBrx)3 (x = 0.1) perovksite solar cells (PVSCs) based on based mp-TiO2 ETL. In this work, the mixed halide MAPb(I1-xBrx)3 (x = 0.1) hybrid… read more here.
Keywords: solvent engineering; engineering process; mixed halide;