An efficient flexible graphene-based light-emitting device

A spectrally tunable all-graphene-based flexible field-effect light-emitting device

The continuous tuning of the emission spectrum of a single light-emitting diode (LED) by an external electrical bias is of great technological significance as a crucial property in high-quality displays, yet this capability has not been demonstrated in existing LEDs. Graphene, a tunable optical platform, is a promising medium to achieve this goal. Here we demonstrate a bright spectrally tunable...

Synergetic electrode architecture for efficient graphene-based flexible organic light-emitting diodes

Graphene-based organic light-emitting diodes (OLEDs) have recently emerged as a key element essential in next-generation displays and lighting, mainly due to their promise for highly flexible light sources. However, their efficiency has been, at best, similar to that of conventional, indium tin oxide-based counterparts. We here propose an ideal electrode structure based on a synergetic interpla...

White Light-Emitting Device on Flexible Plastic Substrates

Current density [mA/cm] L um in an ce [c d/ m 2 ] Voltage [V] Over last several years, light-emitting devices based on organic materials have been attractive research subjects because of their potential applicability to large size flat panel displays and solid-state lighting with low fabrication costs and easy manufacturing processes. Recently, the topic of white light generation from singlelay...

Low-power flexible organic light-emitting diode display device.

Extremely efficient flexible organic light-emitting diodes with modified graphene anode

Although graphene films have a strong potential to replace indium tin oxide anodes in organic light-emitting diodes (OLEDs), to date, the luminous efficiency of OLEDs with graphene anodes has been limited by a lack of efficient methods to improve the low work function and reduce the sheet resistance of graphene films to the levels required for electrodes1–4. Here, we fabricate flexible OLEDs by...