High-efficiency single-layer organic light-emitting diode based on green fluorescent protein

摘要

We have fabricated a molecular organic light-emitting device comprising indium-tin oxide/a molecular organic layer/aluminum in which the organic layer is a green fluorescent protein. The device exhibits peak external quantum and power efficiencies of 8±0.2% and 13±0.7lmW~(-1) at a current of J= 1.5A m~(-2), respectively. In addition, the turn-on voltage is 2.5 V for l cd m~(-2) and the maximum luminance achieved is 1275 cdm~(-2). This good performance can be explained by the presence of singlet-excited states, leading to a high internal efficiency.