Improved Efficiency of Flexible Organic Light-Emitting Diodes by Insertion of Ultrathin SiO<sub><b>2</b></sub> Buffer Layers

<table>The schematic energy level diagram of ITO/SiO<sub>2</sub>/NPB/Alq<sub>3</sub>/Al.</table>

International Journal of Photoenergy

Figure 1: Improved Efficiency of Flexible Organic Light-Emitting Diodes by Insertion of Ultrathin SiO<sub><b>2</b></sub> Buffer Layers 