有机发光晶体管:驱动发光一体化的新型显示技术OA

The continuous innovation in display technology is crucial for the development of the infor‑mation industry.As an emerging type of monolithic integrated driving and light-emitting device,or‑ganic light-emitting transistor(OLET)have attracted considerable attention due to their integration of the switching/amplification functions of organic field-effect transistors and the light-emitting character‑istics of organic light-emitting diode within a single device architecture.This article reviews the latest advancements in OLET technology in terms of material innovation and device design.In the field of high mobility emissive organic semiconductors,the bottleneck of balancing high mobility with strong luminescence has been successfully overcome through strategies including molecular structure design and aggregation state optimization.In terms of the device performance,leveraging the unique open-plane light-emitting characteristics and gate-voltage modulation mechanism of OLET,highly polar‑ized emission(with a degree of polarization up to 0.97)and ultranarrow spectral emission(with a full width at half maximum as low as 13 nm)have been achieved.These breakthroughs provide a novel technological pathway for the development of next-generation high-performance,multifunctional inte‑grated display technologies,demonstrating the significant potential of OLET in driving the evolution of display technology.