Title :
Power Recycling of Large-Area OLEDs Using Solar Cells
Author :
Park, Jongwoon ; Lee, Jongho ; Shin, Dongchan
Author_Institution :
Nat. Center for Nanoprocess & Equip., Korea Inst. of Ind. Technol., Gwangju, South Korea
fDate :
7/1/2010 12:00:00 AM
Abstract :
We demonstrate that power recycling is feasible by merging a large-area (30 ×120 mm2) OLED panel and a solar cell into each other. The power recycling efficiency of 0.152% is achieved under the illumination of one side-emitting white OLED at 2450 cd/m2 when the conversion efficiency of a reference solar cell is 4% and the distance between the OLED and solar cell is 1.5 mm. We have found that the power recycling efficiency is decreased under high brightness due to a decrease in the power efficiency of OLED and a loss of current induced by the resistance of a transparent electrode. We have also shown that local heat generation of the large-area OLED panel would be an issue for power recycling.
Keywords :
flat panel displays; organic light emitting diodes; power conversion; recycling; solar cells; large-area OLED panel; local heat generation; organic light emitting diodes; power recycling efficiency; side-emitting white OLED; solar cell conversion efficiency; transparent electrode; Brightness; Flat panel displays; Glass; Lighting; Organic light emitting diodes; Photovoltaic cells; Power generation; Recycling; Solar power generation; Windows; Organic light-emitting diodes (OLEDs); lightings; power recycling; solar cells;
Journal_Title :
Display Technology, Journal of
DOI :
10.1109/JDT.2010.2046717
