Hau-Vei Han

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This paper presents a hybrid design, featuring a traditional GaAs-based solar cell combined with various colloidal quantum dots. This hybrid design effectively boosts photon harvesting at long wavelengths while enhancing the collection of photogenerated carriers in the ultraviolet region. The merits of using highly efficient semiconductor solar cells and(More)
In this study, a novel photoluminescent quantum dots device with laser-processed microscale patterns has been demonstrated to be used as a white light emitting source. The pulsed laser ablation technique was employed to directly fabricate microscale square holes with nano-ripple structures onto the sapphire substrate of a flip-chip blue light-emitting(More)
In this study, we reported the improved light outcoupling efficiency of an OLED by antireflective periodic micro-pyramids structure. The flexible PET substrate with the micro-pyramids structure was fabricated using fully Roll-to-Roll(R2R) processed method. During the measurement, the light emission from the OLED with the texture structure has light(More)
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