期刊
APPLIED PHYSICS LETTERS
卷 100, 期 19, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4714696
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资金
- Swedish Research Council (Vetenskapsradet)
- Carl Trygger's foundation
- Umea University
- Knut and Alice Wallenberg Foundation
We present a functional and scalable encapsulation of light-emitting electrochemical cells (LECs), which results in a measured ambient operation of >400 h at a brightness of >300 cd/m(2) with a maximum efficacy of 6 lm/W, and a linearly extrapolated ambient operation of similar to 5600 h at >100 cd/m(2). Our findings suggest that previous studies have underestimated the practical stability of appropriately encapsulated LECs. We also report that the dominant ambient degradation for non-encapsulated LECs is water-induced delamination of the cathode from the active layer, while encapsulated LECs in contrast are found to decay from spatial variations in the active layer composition. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4714696]
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