Results 21 to 30 of about 235,876 (278)

Lead‐free metal halide perovskites for light‐emitting diodes

open access: yesEcoMat, 2021
Metal halide perovskites (MHPs) have been developing rapidly in recent years due to their outstanding optoelectronic properties and tremendous contributions from worldwide researchers. The external quantum efficiencies of perovskite light‐emitting diodes
Jianxun Lu   +5 more
doaj   +1 more source

Current Advancements in Material Research and Techniques Focusing on Lead-free Perovskite Solar Cells [PDF]

open access: yes, 2017
Organic-inorganic lead halide perovskite solar cells (PSCs) recently achieved a photo-to-electricity conversion efficiency (PCE) of 22.1%. They drew much attention as promising photovoltaic devices.
Gao Liguo   +3 more
core   +2 more sources

Advancements in visible-light-driven double perovskite nanoparticles for photodegradation

open access: yesMicro and Nano Systems Letters, 2023
Perovskites are of significant interest in the field of photocatalysis. To date, many perovskite nanostructures have been developed, and their applications in photocatalysis have been studied.
Runia Jana   +3 more
doaj   +1 more source

Lead-free hybrid perovskites for photovoltaics

open access: yesBeilstein Journal of Nanotechnology, 2018
This review covers the state-of-the-art in organo–inorganic lead-free hybrid perovskites (HPs) and applications of these exciting materials as light harvesters in photovoltaic systems.
Oleksandr Stroyuk
doaj   +1 more source

Synthesis of organo tin halide perovskites via simple aqueous acidic solution-based method

open access: yesJournal of Science: Advanced Materials and Devices, 2018
Organometal halide perovskites have been studied extensively during the last ten years for their interesting applications in solar cells and optoelectronics. One drawback of these materials is the presence of lead inside the compound, thus limiting their
Thuat Nguyen-Tran   +4 more
doaj   +1 more source

Giant Light-Emission Enhancement in Lead Halide Perovskites by Surface Oxygen Passivation. [PDF]

open access: yes, 2018
Surface condition plays an important role in the optical performance of semiconductor materials. As new types of semiconductors, the emerging metal-halide perovskites are promising for next-generation optoelectronic devices.
Huang, Jianmei   +11 more
core   +3 more sources

Emerging new‐generation white light‐emitting diodes based on luminescent lead‐free halide perovskites and perovskite derivatives

open access: yesNano Select, 2022
Phosphor‐converting white light‐emitting diodes (WLEDs) are promising and particularly appealing solid‐state light sources, which are expected to change the way we light our homes and businesses.
Zhuangzhuang Ma   +7 more
doaj   +1 more source

Potential Substitutes for Replacement of Lead in Perovskite Solar Cells: A Review

open access: yesGlobal Challenges, 2019
Lead halide perovskites have displayed the highest solar power conversion efficiencies of 23% but the toxicity issues of these materials need to be addressed.
Ravinder Kour   +7 more
doaj   +1 more source

Recent Developments in Lead and Lead-Free Halide Perovskite Nanostructures towards Photocatalytic CO2 Reduction

open access: yesNanomaterials, 2020
Perovskite materials have been widely considered as emerging photocatalysts for CO2 reduction due to their extraordinary physicochemical and optical properties. Perovskites offer a wide range of benefits compared to conventional semiconductors, including
Chaitanya B. Hiragond   +2 more
doaj   +1 more source

An Environmentally Stable and Lead-Free Chalcogenide Perovskite

open access: yes, 2019
Organic-inorganic halide perovskites are intrinsically unstable when exposed to moisture and/or light. Additionally, the presence of lead in many perovskites raises toxicity concerns.
Balasubramanian, Ganesh   +16 more
core   +1 more source

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