초록 |
Flexible organic optoelectronic devices such as organic light-emitting diodes (OLEDs) and organic solar cells (OSCs) require transparent conducting electrodes (TCEs) having high transparency and conductivity be fabricated on plastic substrates. However, most of TCE materials suffer from the classic trade-off between optical transmittance and electrical conductivity. Thicker layers afford higher conductivity, but this increase comes at the expense of optical transmittance and vice versa. Here we report a universal method to overcome this trade-off by using a combination of metal-embedding architecture into plastic substrate and ultrathin transparent electrodes, leading to highly transparent, highly conducting and extremely flexible electrodes with very smooth surface. These electrodes were used to fabricate flexible organic devices such as OSCs and OLEDs that exhibited performances similar or superior to that of devices fabricated on glass substrate. |