This innovation promises to make your cell phones, tablets, computers and television sets cheaper. And that too while providing better display of colours on screens.
A team of researchers from the chemistry department of Sardar Patel University (SPU) has developed metal complexes which are cheaper than the organic light-emitting diodes (OLEDs) used currently in the display unit of electronic gadgets like cell phones, tablets and television sets.

The device prepared using these metal complexes provides better colour purity and its fabrication process too is cost-effective.
“OLEDs are lamination-based materials which are currently used in gadgets as light-emitting materials,” said Dr Kirankumar Surati, associate professor at the department, who led the team that recently received a patent for the research project.

“But the existing OLEDs are less stable, the metal that is currently used is very costly, life of the device is short and there are problems of colour bleaching. For example, blue colour in the display starts fading and turns to sky blue or whitish,” said Surati.

“We have developed heteroleptic iridium (III) complexes, a type of metal complex. These metal complexes are cost-effective, stable, have a higher life and have the ability to generate pure colour,” he said.
Just one gram of commercially available compounds that are currently used in electronic gadgets cost more than Rs 50,000 whereas the compounds developed by SPU team costs less than half.
The compounds were developed as part of a project funded by the Department of Science and Technology. “We are in talks with some industrial players to transfer the technology so that it can be commercialized,” he said.
The new material is not only cost-effective but can be easily used for creating a display of gadgets.

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