By inserting platinum atoms into an organic semiconductor, University of
Utah physicists were able to "tune" the plastic-like polymer to emit
light of different colors – a step toward more efficient, less expensive
and truly white organic LEDs for light bulbs of the future.
"These new, platinum-rich polymers hold promise for white organic
light-emitting diodes and new kinds of more efficient solar cells," says
University of Utah physicist Z. Valy Vardeny, who led a study of the
polymers. SEE MORE Micro-finance institutions are likely to be exempted from corporate
income tax for two years, according to a circular drafted by the
Ministry of Finance (MoF). SEE MORE The dollar fell for a second day
against the yen as traders speculated whether the U.S. economy
is strong enough for Federal Reserve policy makers to consider a
reduction in stimulus when they meet next week. SEE MORE After 55 bidding sessions, the State Bank had sold 1,477,800 taels of
gold, or 56.8 tons. However, the gap between the world’s and the
domestic prices is still big, at VND3 million per tael, or 9 percent. SEE MORE HCM CITY (VNS) — The dong has stabilised again against the US dollar after losing ground for more than two weeks. SEE MORE
