Contact: Lee J. Siegel
University of Utah
Caption: University of Utah physicist Z. Valy Vardeny works in a glove box where light-emitting polymers are studied under clean conditions. Vardeny and colleagues have inserted platinum atoms into an organic semiconductor, creating polymers that can be "tuned" to emit light of different colors -- a step toward a new kind of organic light-emitting diode, or OLED, that can emit truly white light and be used in future light bulbs.
Credit: Lee J. Siegel, University of Utah.
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