Results 71 to 80 of about 333,285 (230)

Automated design of hybrid halide perovskite monolayers for band gap engineering

open access: yesnpj Computational Materials
The recent experimental confirmation of perovskite monolayers has sparked ongoing efforts in their prediction and synthesis, showcasing their flexible tunable band gap and potential in advanced functional devices.
Jie Hu   +3 more
doaj   +1 more source

Low energy paths for octahedral tilting in inorganic halide perovskites

open access: yes, 2018
Instabilities relating to cooperative octahedral tilting is common in materials with perovskite structures, and in particular in the sub class of halide perovskites.
Klarbring, Johan
core   +1 more source

Imperfections and their passivation in halide perovskite solar cells.

open access: yesChemical Society Reviews, 2019
All highly-efficient organic-inorganic halide perovskite (OIHP) solar cells to date are made of polycrystalline perovskite films which contain a high density of defects, including point and extended imperfections. The imperfections in OIHP materials play
Bo Chen   +4 more
semanticscholar   +1 more source

Alkyl Additive‐Mediated Growth of Two‐Dimensional Tin Halide Perovskites for Efficient Charge Transport

open access: yesSmall Structures
Solution‐processed two‐dimensional (2D) tin (Sn2+)‐halide perovskites have achieved great milestones in (opto)electronic devices. The fabrication of high‐quality 2D Sn2+‐halide perovskite films has remained a difficult challenge due to the Lewis acidity ...
Youjin Reo   +8 more
doaj   +1 more source

Lead‐Free Halide Perovskites for Light Emission: Recent Advances and Perspectives

open access: yesAdvanced Science, 2021
Lead‐based halide perovskites have received great attention in light‐emitting applications due to their excellent properties, including high photoluminescence quantum yield (PLQY), tunable emission wavelength, and facile solution preparation. In spite of
Xin Li   +11 more
doaj   +1 more source

Light-induced picosecond rotational disordering of the inorganic sublattice in hybrid perovskites. [PDF]

open access: yes, 2017
Femtosecond resolution electron scattering techniques are applied to resolve the first atomic-scale steps following absorption of a photon in the prototypical hybrid perovskite methylammonium lead iodide.
Coffee, Ryan   +21 more
core   +2 more sources

Thermochromic halide perovskite solar cells [PDF]

open access: yesNature Materials, 2018
Smart photovoltaic windows represent a promising green technology featuring tunable transparency and electrical power generation under external stimuli to control the light transmission and manage the solar energy. Here, we demonstrate a thermochromic solar cell for smart photovoltaic window applications utilizing the structural phase transitions in ...
Lin, Jia   +13 more
openaire   +4 more sources

Controlled Synthesis of Organic/Inorganic van der Waals Solid for Tunable Light-matter Interactions

open access: yes, 2015
Van der Waals (vdW) solids, as a new type of artificial materials that consist of alternating layers bonded by weak interactions, have shed light on fascinating optoelectronic device concepts.
Chang, Tay Rong   +24 more
core   +1 more source

Identification of Free and Bound Exciton States and Their Phase-Dependent Trapping Behavior in Lead Halide Perovskites

open access: yes, 2017
In this work we probe the sub-gap energy states within polycrystalline and single crystal lead halide perovskites to better understand their intrinsic photophysics behaviors.
Jasieniak, Jacek J.   +8 more
core   +1 more source

Metal halide perovskites

open access: yes
Η ολοένα αυξανόμενη ανάγκη παρακολούθησης ατμοσφαιρικών ρύπων, τοξικών χημικών και εκρηκτικών αερίων, έχει ωθήσει σε σημαντικές εξελίξεις στον τομέα της τεχνολογίας ανίχνευσης αερίων. Ωστόσο, οι συμβατικοί αισθητήρες αντιμετωπίζουν συχνά περιορισμούς, όπως χαμηλή ευαισθησία και επιλεκτικότητα.
Sumedha Tamboli   +3 more
  +5 more sources

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