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Fabrication and electroluminescence properties of white OLED with three-component, emitting layer: Blue and yellowish-green polymers blend with red dopant
- Author(s)
- Kim, Soon Hak, Hur, Youngjune, Kim, Hyun Suk, Choi, Kyu-Han, Han, Yoon Soo, Kwak, Giseop, Kwon, Younghwan, Park, Lee Soon
- Issued Date
- 2007
- Citation
- MOLECULAR CRYSTALS AND LIQUID CRYSTALS, v.470, pp.305 - 313
- Abstract
- Three-component blend system based on polyfluorene derivative (SK32 (R) ), substituted polyacetlyene (PTMSDPA) and iridium complex (red dopant) were fabricated as a single emitting layer for white OLED. The two polymers and iridium complex were well mixed to provide transparent films. Its electro-optical properties were investigated in terms of emission color, brightness, and luminescence efficiency. The optimal weight ratio for white emission was 100 (SK32 (R)): 5 (PTMSDPA): 0.5 (red dopant). The color coordination at this ratio was (x = 0.33, y = 0.33), completely matching to white color. The luminance was 831 cd/m(2) at 17V, its current efficiency was estimated to 1.15cd/A at 9V and the maximum power efficiency reached 0.44lm/W at 7 V
- Publisher
- TAYLOR & FRANCIS LTD
- ISSN
- 1542-1406
- Keyword (Author)
- electroluminescence, single emitting layer, white OLED
- Keyword
- DERIVATIVES, DEVICES
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