Results 31 to 40 of about 45,849 (259)

A fast and robust numerical scheme for solving models of charge carrier transport and ion vacancy motion in perovskite solar cells [PDF]

open access: yes, 2018
Drift-diffusion models that account for the motion of both electronic and ionic charges are important tools for explaining the hysteretic behaviour and guiding the development of metal halide perovskite solar cells. Furnishing numerical solutions to such
Courtier, N. E.   +2 more
core   +2 more sources

A Two‐Step Modified Sequential Deposition Method‐based Pb‐Free (CH3NH3)3Sb2I9 Perovskite with Improved Open Circuit Voltage and Performance

open access: yesChemElectroChem, 2020
In the last decade, photovoltaic devices employing lead halide perovskites as light absorber have pulled the attention of researchers due to their outstanding performance.
Dr. Khursheed Ahmad   +2 more
doaj   +1 more source

Lead-Free Perovskite Single Crystals: A Brief Review

open access: yesCrystals, 2021
Lead-free perovskites have received remarkable attention because of their nontoxicity, low-cost fabrication, and spectacular properties including controlled bandgap, long diffusion length of charge carrier, large absorption coefficient, and high ...
Xianfang Zhou   +8 more
doaj   +1 more source

Ag/In lead‐free double perovskites [PDF]

open access: yesEcoMat, 2020
AbstractLead‐free Cs2AgInCl6 and Cs2AgInBr6 double perovskites are studied by a combination of advanced ab‐initio calculations and photoluminescence experiments. We show that they are insulators with direct band gaps of 2.53 and 1.17 eV, respectively; most importantly, they are characterized by unusually low absorption rates in a ~1 eV wide energy ...
Fang Liu   +14 more
openaire   +4 more sources

A Review on Lead-Free Hybrid Halide Perovskites as Light Absorbers for Photovoltaic Applications Based on Their Structural, Optical, and Morphological Properties

open access: yesMolecules, 2020
Despite the advancement made by the scientific community in the evolving photovoltaic technologies, including the achievement of a 29.1% power conversion efficiency of perovskite solar cells over the past two decades, there are still numerous challenges ...
Shadrack J. Adjogri, Edson L. Meyer
doaj   +1 more source

Numerical investigation of lead free Cs2TiBr6 based perovskite solar cell with optimal selection of electron and hole transport layer through SCAPS-1D simulation

open access: yesResults in Optics, 2023
Halide-based perovskite has several advantages, including high efficiency, ease of manufacture, and low cost. In general, hazardous lead (Pb) is used in perovskite solar cells as an absorber layer, while polymer, which is unstable in nature used as the ...
Hironmoy Karmaker   +2 more
doaj   +1 more source

A novel dimethylformamide (DMF) free bar-cast method to deposit organolead perovskite thin films with improved stability [PDF]

open access: yes, 2016
We report a solvent-free approach to synthesizing organolead perovskites by using solid state reactions to coat perovskite crystals onto Al2O3 or TiO2 nanoparticles followed by addition of terpineol affording perovskite inks.
Arthur Connell   +36 more
core   +4 more sources

Lead-free europium and ytterbium perovskites

open access: yesRSC Advances, 2023
Halide perovskite is a material with fantastic properties that could substantially impact next-generation optoelectronics.
openaire   +2 more sources

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

Numerical Simulation and Optimization of Inorganic Lead-Free Cs3Bi2I9-Based Perovskite Photovoltaic Cell: Impact of Various Design Parameters

open access: yesEnergies, 2023
The lead halide-based perovskite solar cells have attracted much attention in the photovoltaic industry due to their high efficiency, easy manufacturing, lightweight, and low cost.
Arnob Das   +5 more
doaj   +1 more source

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