Based on the phosphorescent ‘organic’ LED technology these are all futuristic gadgets. from the Hyderabad-based Indian Institute of Chemical Technology (IICT) one of the scientists have made a breakthrough in realising a simple and low-cost model of an organic LED that has a high power and luminescence efficiency. At present we are using inorganic LEDs, while organic LEDs are in development and limited production.
Organic LEDs have the major advantage of extremely high energy efficiency. Dr V. Jayathirtha Rao, chief scientist and head of Crop Protection Division at IICT said “Organic LEDs are very light weight. Their power efficiency is also very high but the struggle now is get that up. Light from organic LEDs is like moonlight. We always prefer moonlight to sunlight, isn’t it?” They made a simple organic LED module that has a high luminescence and power efficiency.
His group achieved a luminescence efficiency of 34 per cent and a power efficiency of 22 per cent said Dr Jayathirtha Rao. IICT scientists’ model focuses on whenever electricity is passed through the organic material the harvest of inactive ‘triplet excitons’ that are formed.
He said “These can be powered up with very low voltage, say 10 Volts. So you can have organic LED screens in cars. A small solar cell can power an organic LED television at home.”