Advances in electrically driven light-emitting diodes based on lead-free metal halides.
Chem Commun (Camb)
; 59(9): 1116-1124, 2023 Jan 26.
Article
em En
| MEDLINE
| ID: mdl-36629875
ABSTRACT
The emerging lead halide perovskites show great potential for their use as emitters in electrically driven light-emitting diodes (LEDs) with external quantum efficiency (EQE) over 25%. While the toxicity of lead and inferior device stability are the main obstacles for their commercialization, replacing Pb2+ with low- or non-toxic metal ions to form low- or zero-dimensional structures provides an alternative approach to effectively tackle these issues. Recently, luminescent lead-free metal halides have been increasingly developed toward eco-friendly and highly efficient electroluminescence. In this feature article, we give a brief overview of recent advances in luminescent lead-free metal halides and their applications in electrically driven LEDs. The challenges and prospects in this field are outlined at the end.
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MEDLINE
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En
Ano de publicação:
2023
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Article