Advance in Metal-based Nanoparticles for the Enhanced Performance of Organic Optoelectronics Devices

Metal nanoparticles(NPs) have made great contributions to the optical and electrical properties in the field of materials science, primary to the interest in their unique small size effect, quantum effect, surface effect and macro quantum tunnel effect. Recently, utilizing the unique optical and electrical properties of metal NPs enable them to be extensive applied in organic optoelectronic devices for further enhancing device performances, has becoming the research focus area. Until now, the best enhancement ratio of efficiency in organic light. emitting diodes and organic photovoltaics are 150% and 70%, respectively, especially the successful applications in the high. performance optoelectronic devices. The enhancement mechanism could be concluded to metal enhanced fluorescence, plasma enhanced absorption, energy transfer, electrical effect, scattering effect and so on. Here we review the different enhancement mechanisms introduced by surface plasma resonance and electrical effect of metal NPs, present the different strategies of incorporating different NPs and summarize the research works of metal NPs. based enhancing the performance of organic optoelectronic devices. The local surface plasma resonance of NPs also exist some problems when applied in devices, such as the limitation of action range, the enhanced wavelength region should matching with plasma resonance and so on. The researchers proposed some new design views such as "far. field. effect, the adjusting between NPs and excitons profile, scattering effect. With the comprehensive understanding of the mechanisms, further improvement in device performance and emerging applications can be expected for the new class of NPs. incorporated organic optoelectronic devices.