Organic single‐crystal light‐emitting transistors with external quantum efficiency over 20%

Organic single‐crystal light‐emitting transistors with external quantum efficiency over 20%

Blog Article

Abstract Organic light‐emitting transistors (OLETs) have attracted increasing attention because of their potential applications in next‐generation displays and high‐energy operating devices.However, the simultaneous achievement of high luminescent efficiency and copyright mobility in organic semiconductors remains challenging because the localized excitons are advantageous for light emission, whereas the delocalized carriers are Soft Doll beneficial for efficient charge migration.Herein, we report an organic single crystal of a cyano‐substituted styrene derivative with balanced mobility yielding a record‐high external quantum efficiency of 20.

5% in OLETs.Temperature‐dependent I–V curves and electronic structure analyses based on first‐principles calculations were performed to disclose the Diecast Car underlying mechanism as a band transport, which provides an efficient way to achieve high quantum efficiency in OLETs.