Results 71 to 80 of about 38,911 (187)

Halide segregation in mixed-halide perovskites

open access: yes, 2021
Metal halide perovskites have garnered a great deal of interest over the last few years due to their impressive – and rapidly increasing – performance as materials for solar cells. In particular, mixed-halide perovskites are essential for use in all-perovskite or perovskite-silicon tandem solar cells due to their tunable bandgap.
openaire   +2 more sources

Pb-free halide perovskites for solar cells, light-emitting diodes, and photocatalysts

open access: yesAPL Materials, 2022
Metal halide perovskites have recently emerged as one of the most promising classes of semiconductors for various applications, especially in the field of optoelectronics.
Pingping Jiang   +7 more
doaj   +1 more source

Controlled growth of CH$_3$NH$_3$PbI$_3$ nanowires in arrays of open nanofluidic channels

open access: yes, 2016
Spatial positioning of nanocrystal building blocks on a solid surface is a prerequisite for assembling individual nanoparticles into functional devices. Here, we report on the graphoepitaxial liquid-solid growth of nanowires of the photovoltaic compound ...
Bonvin, Eric   +5 more
core   +1 more source

Suppressed phase separation of mixed-halide perovskites confined in endotaxial matrices

open access: yesNature Communications, 2019
The bandgap of mixed-halide perovskites can be continuously tuned by changing the halide ratio, but the crystals have poor photo-stability. Here the authors show that photoinduced phase separation is suppressed when perovskite nanocrystals are embedded ...
Xi Wang   +13 more
doaj   +1 more source

What is moving in hybrid halide perovskite solar cells?

open access: yes, 2016
Organic-inorganic semiconductors, which adopt the perovskite crystal structure, have perturbed the landscape of contemporary photovoltaics research. In this Account, we discuss the internal motion of methylammonium lead iodide (CH$_3$NH$_3$PbI$_3$) and ...
Frost, Jarvist M., Walsh, Aron
core   +2 more sources

Ferroelectricity in halide perovskites

open access: yes, 2022
This chapter provides an overview on the material class of halide perovskites, their novel applications in thin film solar cells, and how ferroelectricity affects their properties. Novel measurement approaches reveal material properties related to ferroelectricity, providing not only insights into the working principles of halide perovskite devices but
openaire   +2 more sources

Rich Chemistry in Inorganic Halide Perovskite Nanostructures. [PDF]

open access: yes, 2018
Halide perovskites have emerged as a class of promising semiconductor materials owing to their remarkable optoelectronic properties exhibiting in solar cells, light-emitting diodes, semiconductor lasers, etc.
Huang, Jianmei   +3 more
core  

Excess Iodine Improves the Electronic Properties of Zinc Phosphate and Pb‐Halide Perovskite Nanostructured Interfaces

open access: yesSmall Structures
Interfaces between Pb‐halide perovskites and protective layers are of interest for high‐efficiency solar cells and highly luminescent core–shell nanostructures.
Weiyi Zhang   +2 more
doaj   +1 more source

Computational Study of Halide Perovskite-Derived A$_2$BX$_6$ Inorganic Compounds: Chemical Trends in Electronic Structure and Structural Stability

open access: yes, 2017
The electronic structure and energetic stability of A$_2$BX$_6$ halide compounds with the cubic and tetragonal variants of the perovskite-derived K$_2$PtCl$_6$ prototype structure are investigated computationally within the frameworks of density ...
Asta, Mark   +9 more
core   +1 more source

Progress and Application of Halide Perovskite Materials for Solar Cells and Light Emitting Devices

open access: yesNanomaterials
Halide perovskite materials have attracted worldwide attention in the photovoltaic area due to the rapid improvement in efficiency, from less than 4% in 2009 to 26.1% in 2023 with only a nanometer lever photo-active layer. Meanwhile, this nova star found
Maoding Cheng   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy