Uniaxial orientation of semiconductor nanorods for high outcoupling-factor light-emitting devices
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초록
내용
The alignment of anisotropic semiconductor nanocrystals in the emissive film poses important challenges for improved overall efficiency of electroluminescent devices. The uniaxial dipole orientation of the emitters immediately induces not only enhancing the optical extraction efficiency of the device but reducing the light loss through the linear polarized filter. Herein, we report enhanced EL polarization with uniaxial alignment of CdSe/CdS core/shell dot-in-rods (DIRs) film blending with conductive polymer with poly(9-vinylcarbazole) (PVK). This study on flow-induced alignment of anisotropic nanocrystals provides quantitative understandings in the solution processible film formation.