Researchers have developed a cheaper and “easier to make” new brighter LED display by using a material called perovskite.
According to a study published in the journal “Nature Nanotechnology”, Perovskite is a general term used to describe a group of materials that have a distinctive crystal structure of cuboid and diamond shapes.
The perovskites used to make the LEDs are known as organometal halide perovskites and contain a mixture of lead, carbon-based ions and halogen ions known as halides.
These materials dissolve well in common solvents and assemble to form perovskite crystals when dried, making them cheap and simple to make.
The perovskite LEDs use a simple process and do not require high temperature heating steps or a high vacuum, like current silicon displays do.
“The big surprise is to find that such simple process methods still produce very clean semi-conductor properties - without the need for complex purification procedures required for traditional semi-conductors,” explained research team member
The team from
“This makes it extremely useful for colour displays, lighting and optical communication applications,” added
This technology could provide a lot of value to the ever growing flat panel display industry, research team said adding that the first commercially available LED based on perovskite could be available within five years.
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